Surgical repair of posterosuperior rotator cuff
tears has a poorer outcome and a higher rate of failure compared
with repairs of supraspinatus tears. In this prospective cohort
study 28 consecutive patients with an
Rotator cuff pathology is the main cause of shoulder pain and dysfunction in older adults. When a rotator cuff tear involves the subscapularis tendon, the symptoms are usually more severe and the prognosis after surgery must be guarded. Isolated subscapularis tears represent 18% of all rotator cuff tears and arthroscopic repair is a good alternative primary treatment. However, when the tendon is deemed
Aims. Favourable short-term outcomes have been reported following latissimus dorsi tendon transfer for patients with an
Aims. Long-term outcomes following the use of human dermal allografts in the treatment of symptomatic
Aims. Since long-term outcome of teres major tendon transfer surgery
for
Transfer of pectoralis major has evolved as the most favoured option for the management of the difficult problem of
We treated 12 shoulders in ten patients with
We report our experience of performing an elbow
hemiarthroplasty in the treatment of comminuted distal humeral fractures
in the elderly patients. A cohort of 42 patients (three men and 39 women, mean age 72;
56 to 84) were reviewed at a mean of 34.3 months (24 to 61) after
surgery. Functional outcome was measured with the Mayo Elbow Performance
Score (MEPS) and range of movement. The disabilities of the arm,
shoulder and hand questionnaire (DASH) was used as a patient rated
evaluation. Complications and ulnar nerve function were recorded.
Plain radiographs were obtained to assess prosthetic loosening,
olecranon wear and heterotopic bone formation. The mean extension deficit was 23.5° (0° to 60°) and mean flexion
was 126.8° (90° to 145°) giving a mean arc of 105.5° (60° to 145°).
The mean MEPS was 90 (50 to 100) and a mean DASH score of 20 (0
to 63). Four patients had additional surgery for limited range of
movement and one for partial instability. One elbow was revised
due to loosening, two patients had sensory ulnar nerve symptoms,
and radiographic signs of mild olecranon wear was noted in five
patients. Elbow hemiarthroplasty for comminuted intra-articular distal
humeral fractures produces reliable medium-term results with functional
outcome and complication rates, comparable with open reduction and
internal fixation and total elbow arthroplasty. Cite this article:
Aims. The aim of this study is to provide a detailed description of cases combining bridging patch repair with artificial ligament “internal brace” reinforcement to treat
The October 2024 Shoulder & Elbow Roundup360 looks at: Proximal humeral fractures with vascular compromise; Outcomes and challenges of revision arthroscopic rotator cuff repair: a systematic review; Evaluating treatment effectiveness for lateral elbow tendinopathy: a systematic review and network meta-analysis; Tendon transfer techniques for
Aims. The purpose of this study was to determine whether there were long-term differences in outcomes of reverse shoulder arthroplasty (RSA) undertaken for acute proximal humeral fracture versus rotator cuff deficiency with a minimum follow-up of five years. Methods. This was a prospective cohort study comparing 67 patients with acute complex proximal humeral fracture and 64 patients with
Aims. The current evidence comparing the two most common approaches for reverse total shoulder arthroplasty (rTSA), the deltopectoral and anterosuperior approach, is limited. This study aims to compare the rate of loosening, instability, and implant survival between the two approaches for rTSA using data from the Dutch National Arthroplasty Registry with a minimum follow-up of five years. Methods. All patients in the registry who underwent a primary rTSA between January 2014 and December 2016 using an anterosuperior or deltopectoral approach were included, with a minimum follow-up of five years. Cox and logistic regression models were used to assess the association between the approach and the implant survival, instability, and glenoid loosening, independent of confounders. Results. In total, 3,902 rTSAs were included. A deltopectoral approach was used in 54% (2,099/3,902) and an anterosuperior approach in 46% (1,803/3,902). Overall, the mean age in the cohort was 75 years (50 to 96) and the most common indication for rTSA was cuff tear arthropathy (35%; n = 1,375), followed by osteoarthritis (29%; n = 1,126), acute fracture (13%; n = 517), post-traumatic sequelae (10%; n = 398), and an
Aims. The aim of this study was to describe a quantitative 3D CT method to measure rotator cuff muscle volume, atrophy, and balance in healthy controls and in three pathological shoulder cohorts. Methods. In all, 102 CT scans were included in the analysis: 46 healthy, 21 cuff tear arthropathy (CTA), 18
The combination of an
The December 2012 Shoulder &
Elbow Roundup. 360. looks at: whether allograft is biomechanically superior in large Hill-Sachs defects; glenoid bone loss in shoulder dislocators; repairing
The anatomy and microstructure of the menisci
allow the effective distribution of load across the knee. Meniscectomy
alters the biomechanical environment and is a potent risk factor
for osteoarthritis. Despite a trend towards meniscus-preserving
surgery, many tears are
The February 2023 Shoulder & Elbow Roundup360 looks at: Arthroscopic capsular release or manipulation under anaesthesia for frozen shoulder?; Distal biceps repair through a single incision?; Distal biceps tendon ruptures: diagnostic strategy through physical examination; Postoperative multimodal opioid-sparing protocol vs standard opioid prescribing after knee or shoulder arthroscopy: a randomized clinical trial; Graft healing is more important than graft technique in massive rotator cuff tear; Subscapularis tenotomy versus peel after anatomic shoulder arthroplasty; Previous rotator cuff repair increases the risk of revision surgery for periprosthetic joint infection after reverse shoulder arthroplasty; Conservative versus operative treatment of acromial and scapular spine fractures following reverse total shoulder arthroplasty.
The October 2023 Shoulder & Elbow Roundup360 looks at: Arthroscopic capsular shift surgery in patients with atraumatic shoulder joint instability: a randomized, placebo-controlled trial; Superior capsular reconstruction partially restores native glenohumeral loads in a dynamic model; Gene expression in glenoid articular cartilage varies in acute instability, chronic instability, and osteoarthritis; Intra-articular injection versus interscalene brachial plexus block for acute-phase postoperative pain management after arthroscopic shoulder surgery; Level of pain catastrophizing rehab in subacromial impingement: secondary analyses from a pragmatic randomized controlled trial (the SExSI Trial); Anterosuperior versus deltopectoral approach for primary reverse total shoulder arthroplasty: a study of 3,902 cases from the Dutch National Arthroplasty Registry with a minimum follow-up of five years; Assessment of progression and clinical relevance of stress-shielding around press-fit radial head arthroplasty: a comparative study of two implants; A number of modifiable and non-modifiable factors increase the risk for elbow medial ulnar collateral ligament injury in baseball players: a systematic review.
Clinical management of open fractures is challenging and frequently requires complex reconstruction procedures. The Gustilo-Anderson classification lacks uniform interpretation, has poor interobserver reliability, and fails to account for injuries to musculotendinous units and bone. The Ganga Hospital Open Injury Severity Score (GHOISS) was designed to address these concerns. The major aim of this review was to ascertain the evidence available on accuracy of the GHOISS in predicting successful limb salvage in patients with mangled limbs. We searched electronic data bases including PubMed, CENTRAL, EMBASE, CINAHL, Scopus, and Web of Science to identify studies that employed the GHOISS risk tool in managing complex limb injuries published from April 2006, when the score was introduced, until April 2021. Primary outcome was the measured sensitivity and specificity of the GHOISS risk tool for predicting amputation at a specified threshold score. Secondary outcomes included length of stay, need for plastic surgery, deep infection rate, time to fracture union, and functional outcome measures. Diagnostic test accuracy meta-analysis was performed using a random effects bivariate binomial model.Aims
Methods
The aim of this study was to compare the clinical and radiological outcomes of reverse shoulder arthroplasty (RSA) using small and standard baseplates in Asian patients, and to investigate the impact of a mismatch in the sizes of the glenoid and the baseplate on the outcomes. This was retrospective analysis of 50 and 33 RSAs using a standard (33.8 mm, ST group) and a small (29.5 mm, SM group) baseplate of the Equinoxe reverse shoulder system, which were undertaken between January 2017 and March 2021. Radiological evaluations included the size of the glenoid, the Aims
Methods
Orthopaedic surgery requires grafts with sufficient mechanical strength. For this purpose, decellularized tissue is an available option that lacks the complications of autologous tissue. However, it is not widely used in orthopaedic surgeries. This study investigated clinical trials of the use of decellularized tissue grafts in orthopaedic surgery. Using the ClinicalTrials.gov (CTG) and the International Clinical Trials Registry Platform (ICTRP) databases, we comprehensively surveyed clinical trials of decellularized tissue use in orthopaedic surgeries registered before 1 September 2022. We evaluated the clinical results, tissue processing methods, and commercial availability of the identified products using academic literature databases and manufacturers’ websites.Aims
Methods
The October 2024 Knee Roundup360 looks at: Managing the unexpected: treatment of intraoperative medial collateral ligament injuries; Identifying subgroups of patients that may benefit from robotic arm-assisted total knee arthroplasty: secondary analysis of data from a randomized controlled trial; Cost-effectiveness of enoxaparin versus aspirin in the prevention of venous thromboembolism after total hip or knee arthroplasty: an analysis from the CRISTAL cluster-randomized trial; Cartilage regeneration and long-term survival in medial knee osteoarthritis patients treated with high tibial osteotomy and osteochondral autologous transfer system; Treatment of chronic and complex meniscal tears with arthroscopic meniscus repair augmented with collagen matrix wrapping: failure rate and functional outcomes; Long-term outcomes of multiligament knee injuries in American football players.
Rotator cuff tears are common in middle-aged and elderly patients. Despite advances in the surgical repair of rotator cuff tears, the rates of recurrent tear remain high. This may be due to the complexity of the tendons of the rotator cuff, which contributes to an inherently hostile healing environment. During the past 20 years, there has been an increased interest in the use of biologics to complement the healing environment in the shoulder, in order to improve rotator cuff healing and reduce the rate of recurrent tears. The aim of this review is to provide a summary of the current evidence for the use of forms of biological augmentation when repairing rotator cuff tears. Cite this article:
The aim of this study was to determine whether early surgical treatment results in better neurological recovery 12 months after injury than late surgical treatment in patients with acute traumatic spinal cord injury (tSCI). Patients with tSCI requiring surgical spinal decompression presenting to 17 centres in Europe were recruited. Depending on the timing of decompression, patients were divided into early (≤ 12 hours after injury) and late (> 12 hours and < 14 days after injury) groups. The American Spinal Injury Association neurological (ASIA) examination was performed at baseline (after injury but before decompression) and at 12 months. The primary endpoint was the change in Lower Extremity Motor Score (LEMS) from baseline to 12 months.Aims
Methods
This study aimed to investigate the estimated change in primary and revision arthroplasty rate in the Netherlands and Denmark for hips, knees, and shoulders during the COVID-19 pandemic in 2020 (COVID-period). Additional points of focus included the comparison of patient characteristics and hospital type (2019 vs COVID-period), and the estimated loss of quality-adjusted life years (QALYs) and impact on waiting lists. All hip, knee, and shoulder arthroplasties (2014 to 2020) from the Dutch Arthroplasty Register, and hip and knee arthroplasties from the Danish Hip and Knee Arthroplasty Registries, were included. The expected number of arthroplasties per month in 2020 was estimated using Poisson regression, taking into account changes in age and sex distribution of the general Dutch/Danish population over time, calculating observed/expected (O/E) ratios. Country-specific proportions of patient characteristics and hospital type were calculated per indication category (osteoarthritis/other elective/acute). Waiting list outcomes including QALYs were estimated by modelling virtual waiting lists including 0%, 5% and 10% extra capacity.Aims
Methods
There has been a marked increase in the number of hip arthroscopies performed over the past 16 years, primarily in the management of femoroacetabular impingement (FAI). Insights into the pathoanatomy of FAI, and high-level evidence supporting the clinical effectiveness of arthroscopy in the management of FAI, have fuelled this trend. Arthroscopic management of labral tears with repair may have superior results compared with debridement, and there is now emerging evidence to support reconstructive options where repair is not possible. In situations where an interportal capsulotomy is performed to facilitate access, data now support closure of the capsule in selective cases where there is an increased risk of postoperative instability. Preoperative planning is an integral component of bony corrective surgery in FAI, and this has evolved to include computer-planned resection. However, the benefit of this remains controversial. Hip instability is now widely accepted, and diagnostic criteria and treatment are becoming increasingly refined. Instability can also be present with FAI or develop as a result of FAI treatment. In this annotation, we outline major current controversies relating to decision-making in hip arthroscopy for FAI. Cite this article:
This study uses prospective registry data to compare early patient outcomes following arthroscopic repair or debridement of the acetabular labrum. Data on adult patients who underwent arthroscopic labral debridement or repair between 1 January 2012 and 31 July 2019 were extracted from the UK Non-Arthroplasty Hip Registry. Patients who underwent microfracture, osteophyte excision, or a concurrent extra-articular procedure were excluded. The EuroQol five-dimension (EQ-5D) and International Hip Outcome Tool 12 (iHOT-12) questionnaires were collected preoperatively and at six and 12 months post-operatively. Due to concerns over differential questionnaire non-response between the two groups, a combination of random sampling, propensity score matching, and pooled multivariable linear regression models were employed to compare iHOT-12 improvement.Aims
Methods
1. Attention is drawn to the progressive disability caused by
Reverse total shoulder arthroplasty (RTSA) using trabecular metal (TM)-backed glenoid implants has been introduced with the aim to increase implant survival. Only short-term reports on the outcomes of TM-RTSA have been published to date. We aim to present the seven-year survival of TM-backed glenoid implants along with minimum five-year clinical and radiological outcomes. All consecutive elective RTSAs performed at a single centre between November 2008 and October 2014 were reviewed. Patients who had primary TM-RTSA for rotator cuff arthropathy and osteoarthritis with deficient cuff were included. A total of 190 shoulders in 168 patients (41 male, 127 female) were identified for inclusion at a mean of 7.27 years (SD 1.4) from surgery. The primary outcome was survival of the implant with all-cause revision and aseptic glenoid loosening as endpoints. Secondary outcomes were clinical, radiological, and patient-related outcomes with a five-year minimum follow-up.Aims
Methods
1. A modified technique of tendon transference for
A retrospective study of 32 patients with primary tumours of the cauda equina is presented. Most of the patients were initially diagnosed as having prolapsed intervertebral discs and treated accordingly. The correct diagnosis was eventually made, usually after a long delay, and confirmed by myelography. Treatment consisted of laminectomy and excision of the tumour. Only one tumour was frankly malignant; all the remaining patients were relieved of their pain and the majority recovered completely. The exceptions were those patients with long-standing neurological deficits; this highlights the importance of early diagnosis and correct treatment before
We studied 54 patients operated on for combined supraspinatus and infraspinatus rotator-cuff tears. The presence or absence of the dropping and hornblower’s clinical signs of impaired external rotation were correlated with Goutallier stage-3 or stage-4 fatty degeneration of infraspinatus and teres minor. These grades of fatty degeneration have previously been correlated with a poorer outcome from reconstructive surgery. We found that hornblower’s sign had 100% sensitivity and 93% specificity for
1. Attention is drawn to the powers of resistance of the growing ends of bones in suppurative pyogenic arthritis of the knee and hip in infancy. 2. It is emphasised that a translucent zone in the radiograph does not necessarily mean that this part of the bone, epiphysial cartilage or plate is destroyed. 3. Diagnostic criteria are described to confirm that cartilage or decalcified bone has survived the infection in the knee joint. 4. The prognosis for the knee joint is discussed. 5. The hip joint presents greater difficulties in diagnosis and greater issues are at stake. It is recommended therefore that the hip joint be manipulated or explored if the radiograph and the physical signs suggest that destruction of the joint has either caused dislocation or has so damaged it that dislocation is likely to occur in the future. In favourable cases stability may be restored to the hip. In the others a diagnosis of
We report the results of arthroscopic subacromial decompression and debridement of the rotator cuff for chronic small- and medium-sized tears in 114 patients (118 shoulders) between two and five years after surgery. The mean Constant score was improved to 69.8, and 88 shoulders (74.6%) had a satisfactory outcome. Of patients under the age of 60 years the outcome was satisfactory in 59.3%, and in those over 60 years, in 87.5% (p <
0.001). An unsatisfactory outcome was related to manual work (p <
0.001) and a duration of symptoms of more than 12 months (p <
0.05). The outcome was not related to the size of the tear, the muscles involved or biceps pathology. Further surgery was required in 25 patients after a mean of 13.7 months (3 to 35); ten tears had progressed in size, but none became
1. Fifteen patients who had had osteomyelitis of the lower femur or upper tibia during infancy have been studied. The cases of four patients showing particular features of the disease are presented in detail and the remainder are summarised. 2. It is suggested that damage to the epiphysis may be due to an abscess, or to ischaemia following occlusion of the blood supply. In the latter instance the prognosis may be better. 3. In the early stages the radiographic appearances may be deceptive, suggesting that damage to the epiphysis is
1 . In the common type of Volkmann's ischaemic contracture affecting the forearm flexors, the infarct takes the form of an ellipsoid with its axis in the line of the anterior interosseous artery and with its central point a little above the middle of the forearm. The greatest damage is at the centre and usually falls most heavily on flexor digitorum profundus and flexor pollicis longus, which are often necrotic. Those muscles more superficially placed, and sometimes the deep extensors, are more likely to exhibit fibrosis. 2. The median nerve runs near the centre of the ellipsoid and may exhibit profound ischaemia. The ulnar nerve, lying at the edge of the ischaemic zone, tends to be less severely affected. 3. The treatment for this condition is excision of all tissues
Despite recent advances in arthroscopic rotator cuff repair, re-tear rates remain high. New methods to improve healing rates following rotator cuff repair must be sought. Our primary objective was to determine if adjunctive bone marrow stimulation with channelling five to seven days prior to arthroscopic cuff repair would lead to higher Western Ontario Rotator Cuff (WORC) scores at 24 months postoperatively compared with no channelling. A prospective, randomized controlled trial was conducted in patients undergoing arthroscopic rotator cuff repair. Patients were randomized to receive either a percutaneous bone channelling of the rotator cuff footprint or a sham procedure under ultrasound guidance five to seven days prior to index surgery. Outcome measures included the WORC, American Shoulder and Elbow Surgeons (ASES), and Constant scores, strength, ultrasound-determined healing rates, and adverse events.Aims
Methods
Scapular notching is thought to have an adverse effect on the outcome of reverse total shoulder arthroplasty (RTSA). However, the matter is still controversial. The aim of this study was to determine the clinical impact of scapular notching on outcomes after RTSA. Three electronic databases (PubMed, Cochrane Database, and EMBASE) were searched for studies which evaluated the influence of scapular notching on clinical outcome after RTSA. The quality of each study was assessed. Functional outcome scores (the Constant-Murley scores (CMS), and the American Shoulder and Elbow Surgeons (ASES) scores), and postoperative range of movement (forward flexion (FF), abduction, and external rotation (ER)) were extracted and subjected to meta-analysis. Effect sizes were expressed as weighted mean differences (WMD).Aims
Methods
The purpose of this study was to identify the changes in untreated long head of the biceps brachii tendon (LHBT) after a rotator cuff tear and to evaluate the factors related to the changes. A cohort of 162 patients who underwent isolated supraspinatus with the preservation of LHBT was enrolled and evaluated. The cross-sectional area (CSA) of the LHBT on MRI was measured in the bicipital groove, and preoperative to postoperative difference was calculated at least 12 months postoperatively. Second, postoperative changes in the LHBT including intratendinous signal change, rupture, dislocation, or superior labral lesions were evaluated with seeking of factors that were correlated with the changes or newly developed lesions after rotator cuff repair.Aims
Methods
The aim of this study was to examine the recent trend in delivery of arthroscopic subacromial decompression (ASD) in Scotland and to determine if this varies by geographical location. Scottish Morbidity Records were reviewed retrospectively between March 2014 and April 2018 to identify records for every admission to each NHS hospital. The Office of Population Censuses and Surveys (OPCS-4) surgical codes were used to identify patients undergoing primary ASD. Patients who underwent acromioclavicular joint excision (ACJE) and rotator cuff repair (RCR) were identified and grouped separately. Procedure rates were age and sex standardized against the European standard population.Aims
Methods
The number of rotator cuff repairs that are undertaken is increasing. Reverse shoulder arthroplasty (RSA) is the procedure of choice for patients with rotator cuff arthropathy. We sought to determine whether patients who underwent rotator cuff repair and subsequent RSA had different outcomes compared with a matched control group who underwent RSA without a previous rotator cuff repair. All patients with a history of rotator cuff repair who underwent RSA between 2000 and 2015 with a minimum follow-up of two years were eligible for inclusion as the study group. Outcomes, including the American Shoulder and Elbow Surgeons (ASES) scores, were compared with a matched control group of patients who underwent RSA without having previously undergone rotator cuff repair.Aims
Patients and Methods
The purpose of this study was to compare the effectiveness of surgical repair to conservative treatment and subacromial decompression for the treatment of chronic/degenerative tears of the rotator cuff. PubMed, Cochrane database, and Medline were searched for randomized controlled trials published until March 2018. Included studies were assessed for methodological quality, and data were extracted for statistical analysis. The systematic review was conducted following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines.Aims
Materials and Methods
The long head of the biceps (LHB) is often resected in shoulder surgery and could therefore serve as a cell source for tissue engineering approaches in the shoulder. However, whether it represents a suitable cell source for regenerative approaches, both in the inflamed and non-inflamed states, remains unclear. In the present study, inflamed and native human LHBs were comparatively characterized for features of regeneration. In total, 22 resected LHB tendons were classified into inflamed samples (n = 11) and non-inflamed samples (n = 11). Proliferation potential and specific marker gene expression of primary LHB-derived cell cultures were analyzed. Multipotentiality, including osteogenic, adipogenic, chondrogenic, and tenogenic differentiation potential of both groups were compared under respective lineage-specific culture conditions.Objectives
Methods
The aim of this study was to investigate the influence of age on the cost-effectiveness of arthroscopic rotator cuff repair. A total of 112 patients were prospectively monitored for two years after arthroscopic rotator cuff repair using the Disabilities of the Arm, Shoulder and Hand questionnaire (DASH), the Oxford Shoulder Score (OSS), and the EuroQol five-dimension questionnaire (EQ-5D). Complications and use of healthcare resources were recorded. The incremental cost-effectiveness ratio (ICER) was used to express the cost per quality-adjusted life-year (QALY). Propensity score-matching was used to compare those aged below and above 65 years of age. Satisfaction was determined using the Net Promoter Score (NPS). Linear regression was used to identify variables that influenced the outcome at two years postoperatively.Aims
Patients and Methods
Shoulder arthroplasty using short humeral components is becoming increasingly popular. Some such components have been associated with relatively high rates of adverse radiological findings. The aim of this retrospective review was to evaluate the radiological humeral bone changes and mechanical failure rates with implantation of a short cementless humeral component in anatomical (TSA) and reverse shoulder arthroplasty (RSA). A total of 100 shoulder arthroplasties (35 TSA and 65 RSA) were evaluated at a mean of 3.8 years (3 to 8.3). The mean age at the time of surgery was 68 years (31 to 90). The mean body mass index was 32.7 kg/m2 (17.3 to 66.4).Aims
Patients and Methods
Failure of healing is a well-known problem after repair of the rotator cuff. This study aimed to investigate if early repair of trauma-related full-thickness rotator cuff tears (FTRCTs) could prevent this failure. In this prospective trial, 62 consecutive patients (14 women (23%), 48 men (77%); median age 61 years (interquartile range (IQR) 54 to 65)) with trauma-related FTRCT underwent arthroscopic single-row repair within six weeks of trauma. Tendon integrity was assessed one year after surgery using the Sugaya score on MR images. Patients were followed up with Western Ontario Rotator Cuff (WORC) index, EuroQol visual analogue scale (EQ VAS), and the Constant–Murley score (CS) two years after repair.Aims
Patients and Methods
Flexor hallucis longus (FHL) tendon transfer is a well-recognized
technique in the treatment of the neglected tendo Achillis (TA)
rupture. We report a retrospective review of 20/32 patients who had undergone
transtendinous FHL transfer between 2003 and 2011 for chronic TA
rupture. Their mean age at the time of surgery was 53 years (22
to 83). The mean time from rupture to surgery was seven months (1
to 36). The mean postoperative follow-up was 73 months (29 to 120).
Six patients experienced postoperative wound complications.Aims
Patients and Methods
The traditional transosseus flexor hallucis longus (FHL) tendon
transfer for patients with Achilles tendinopathy requires two incisions
to harvest a long tendon graft. The use of a bio-tenodesis screw
enables a short graft to be used and is less invasive, but lacks
supporting evidence about its biomechanical behaviour. We aimed,
in this study, to compare the strength of the traditional transosseus
tendon-to-tendon fixation with tendon-to-bone fixation using a tenodesis
screw, in cyclical loading and ultimate load testing. Tendon grafts were undertaken in 24 paired lower-leg specimens
and randomly assigned in two groups using fixation with a transosseus
suture (suture group) or a tenodesis screw (screw group). The biomechanical
behaviour was evaluated using cyclical and ultimate loading tests.
The Student’s Aims
Materials and Methods
The appropriate management for patients with a degenerative tear
of the rotator cuff remains controversial, but operative treatment,
particularly arthroscopic surgery, is increasingly being used. Our
aim in this paper was to compare the effectiveness of arthroscopic
with open repair of the rotator cuff. A total of 273 patients were recruited to a randomised comparison
trial (136 to arthroscopic surgery and 137 to open surgery) from
19 teaching and general hospitals in the United Kingdom. The surgeons
used their usual preferred method of repair. The Oxford Shoulder
Score (OSS), two years post-operatively, was the primary outcome
measure. Imaging of the shoulder was performed at one year after
surgery. The trial is registered with Current Controlled Trials,
ISRCTN97804283.Aims
Patients and Methods
The aim of this study was to investigate the structural integrity of torn and non-torn human acetabular labral tissue. A total of 47 human labral specimens were obtained from a biobank. These included 22 torn specimens and 25 control specimens from patients undergoing total hip arthroplasty with macroscopically normal labra. The specimens underwent dynamic shear analysis using a rheometer to measure storage modulus, as an indicator of structural integrity.Objectives
Methods
The aim of the study was to develop a quantitative scoring system
to predict whether a large-to-massive rotator cuff tear was arthroscopically
reparable prior to surgery. We conducted a retrospective review of the pre-operative MR imaging
and surgical records of 87 patients (87 shoulders) who underwent
arthroscopic repair of a large-to-massive rotator cuff tear. Patients
were divided into two groups, based on the surgical outcome of the
repair. Of the 87 patients, 53 underwent complete repair (Group
I) and 34 an incomplete repair (Group II). Pre-operative MR images
were reviewed to quantify several variables. Between-group differences
were evaluated and multiple logistic regression analysis was used
to calculate the predictive value of significant variables. The
reparability index (RI) was constructed using the odds ratios of
significant variables and a receiver operating characteristic curve
analysis performed to identify the optimal RI cutoff to differentiate
between the two groups.Aims
Patients and Methods
Hindfoot arthrodesis with retrograde intramedullary nailing has
been described as a surgical strategy to reconstruct deformities
of the ankle and hindfoot in patients with Charcot arthropathy.
This study presents case series of Charcot arthropathy patients
treated with two different retrograde intramedullary straight compression
nails in order to reconstruct the hindfoot and assess the results
over a mid-term follow-up. We performed a retrospective analysis of 18 consecutive patients
and 19 operated feet with Charcot arthropathy who underwent a hindfoot
arthrodesis using a retrograde intramedullary compression nail.
Patients were ten men and eight women with a mean age of 63.43 years
(38.5 to 79.8). We report the rate of limb salvage, complications requiring
additional surgery, and fusion rate in both groups. The mean duration
of follow-up was 46.36 months (37 to 70).Aims
Patients and Methods
The aim of this study was to assess hypertrophy of the extra-articular
tendon of the long head of biceps (LHB) in patients with a rotator
cuff tear. The study involved 638 shoulders in 334 patients (175 men, 159
women, mean age 62.6 years; 25 to 81) with unilateral symptomatic
rotator cuff tears. The cross-sectional area (CSA) of the LHB tendon
in the bicipital groove was measured pre-operatively in both shoulders
using ultrasound. There were 154 asymptomatic rotator cuff tears
in the contralateral shoulder. Comparisons were made between those
with a symptomatic tear, an asymptomatic tear and those with no
rotator cuff tear. In the affected shoulders, the CSAs were compared
in relation to the location and size of the rotator cuff tear. Aims
Patients and Methods
If a modular convertible total shoulder system
is used as a primary implant for an anatomical total shoulder arthroplasty,
failure of the prosthesis or the rotator cuff can be addressed by
converting it to a reverse shoulder arthroplasty (RSA), with retention
of the humeral stem and glenoid baseplate. This has the potential
to reduce morbidity and improve the results. In a retrospective study of 14 patients (15 shoulders) with a
mean age of 70 years (47 to 83) we reviewed the clinical and radiological
outcome of converting an anatomical shoulder arthroplasty (ASA)
to a RSA using a convertible prosthetic system (SMR system, Lima,
San Daniele, Italy). The mean operating time was 64 minutes (45 to 75). All humeral
stems and glenoid baseplates were found to be well-fixed and could
be retained. There were no intra-operative or early post-operative
complications and no post-operative infection. The mean follow-up was 43 months (21 to 83), by which time the
mean visual analogue scale for pain had decreased from 8 pre-operatively
to 1, the mean American Shoulder and Elbow Surgeons Score from 12
to 76, the mean Oxford shoulder score from 3 to 39, the mean Western
Ontario Osteoarthritis of the Shoulder Score from 1618 to 418 and
the mean Subjective shoulder value from 15 to 61. On radiological review, one patient had a lucency around the
humeral stem, two had stress shielding. There were no fatigue fractures
of the acromion but four cases of grade 1 scapular notching. The use of a convertible prosthetic system to revise a failed
ASA reduces morbidity and minimises the rate of complications. The
mid-term clinical and radiological results of this technique are
promising. Cite this article:
A variety of operative techniques have been described as under
the term ‘Bristow-Latarjet’ procedure. This review aims to define
the original procedure, and compare the variation in techniques
described in the literature, assessing any effect on clinical outcomes. A systematic review of 24 studies was performed to compare specific
steps of the technique (coracoid osteotomy site, subscapularis approach,
orientation and position of coracoid graft fixation and fixation
method, additional labral and capsular repair) and detect any effect
this variability had on outcomes.Objectives
Materials and Methods
The acetabular labrum is a soft-tissue structure
which lines the acetabular rim of the hip joint. Its role in hip
joint biomechanics and joint health has been of particular interest
over the past decade. In normal hip joint biomechanics, the labrum
is crucial in retaining a layer of pressurised intra-articular fluid
for joint lubrication and load support/distribution. Its seal around
the femoral head is further regarded as a contributing to hip stability through
its suction effect. The labrum itself is also important in increasing
contact area thereby reducing contact stress. Given the labrum’s
role in normal hip joint biomechanics, surgical techniques for managing
labral damage are continuously evolving as our understanding of
its anatomy and function continue to progress. The current paper
aims to review the anatomy and biomechanical function of the labrum
and how they are affected by differing surgical techniques. Take home message: The acetabular labrum plays a critical role
in hip function and maintaining and restoring its function during
surgical intervention remain an essential goal. Cite this article:
The August 2012 Knee Roundup360 looks at: meniscal defects and a polyurethane scaffold; which is best between a single or double bundle; OA of the knee; how to resolve anterior knee pain; whether yoga can be bad for your menisci; metal ions in the serum; whether ACI is any good; the ACL; whether hyaluronic acid delays collagen degradation; and hyaluronan and patellar tendinopathy.
During open orthopaedic surgery, joints may be exposed to air, potentially leading to cartilage drying and chondrocyte death, however, the long-term effects of joint drying The patellar groove of anaesthetised rats was exposed (sham-operated), or exposed and then subjected to laminar airflow (0.25m/s; 60 minutes) before wounds were sutured and animals recovered. Animals were monitored for up to eight weeks and then sacrificed. Cartilage and chondrocyte properties were studied by histology and confocal microscopy, respectively.Objectives
Methods
Slipped capital femoral epiphysis (SCFE) may
lead to symptomatic femoroacetabular impingement (FAI). We report our
experience of arthroscopic treatment, including osteochondroplasty,
for the sequelae of SCFE. Data were prospectively collected on patients undergoing arthroscopy
of the hip for the sequelae of SCFE between March 2007 and February
2013, including demographic data, radiological assessment of the
deformity and other factors that may influence outcome, such as
the presence of established avascular necrosis. Patients completed
the modified Harris hip score (mHHS) and the non-arthritic hip score
(NAHS) before and after surgery. In total, 18 patients with a mean age of 19 years (13 to 42),
were included in the study. All patients presented with pain in
the hip and mechanical symptoms, and had evidence of FAI (cam or
mixed impingement) on plain radiographs. The patients underwent arthroscopic osteoplasty of the femoral
neck. The mean follow-up was 29 months (23 to 56). The mean mHHS and NAHS scores improved from 56.2 (27.5 to 100.1)
and 52.1 (12.5 to 97.5) pre-operatively to 75.1 (33.8 to 96.8, p
= 0.01) and 73.6 (18.8 to 100, p = 0.02) at final follow-up, respectively.
Linear regression analysis demonstrated a significant association
between poorer outcome scores and increased time to surgery following SCFE
(p <
0.05 for all parameters except baseline MHHS). Symptomatic FAI following (SCFE) may be addressed using arthroscopic
techniques, and should be treated promptly to minimise progressive
functional impairment and chondrolabral degeneration. Take home message: Arthroscopy of the hip can be used to treat
femoroacetabular impingement successfully following SCFE. However,
this should be performed promptly after presentation in order to
prevent irreversible progression and poorer clinical outcomes. Cite this article:
The indications for reverse shoulder arthroplasty
(RSA) continue to be expanded. Associated impairment of the deltoid
muscle has been considered a contraindication to its use, as function
of the RSA depends on the deltoid and impairment of the deltoid
may increase the risk of dislocation. The aim of this retrospective
study was to determine the functional outcome and risk of dislocation
following the use of an RSA in patients with impaired deltoid function.
Between 1999 and 2010, 49 patients (49 shoulders) with impairment
of the deltoid underwent RSA and were reviewed at a mean of 38 months
(12 to 142) post-operatively. There were nine post-operative complications (18%),
including two dislocations. The mean forward elevation improved
from 50° ( These results suggest that pre-operative deltoid impairment,
in certain circumstances, is not an absolute contraindication to
RSA. This form of treatment can yield reliable improvement in function
without excessive risk of post-operative dislocation. Cite this article:
This pilot study reports the clinical outcomes
of a combination of partial subscapularis tendon transfer and small-head
hemiarthroplasty in patients with rotatator cuff arthropathy. A
total of 30 patients (30 shoulders; eight men and 22 women) with
a mean age of 74 years (55 to 84) were assessed at a mean follow-up
of 31 months (24 to 60). The inclusion criteria were painful cuff
tear arthropathy with normal deltoid function and a non-degenerative subscapularis
muscle and tendon and a preserved teres minor. Outcome was assessed using the University of California Los Angeles
score, the Japanese Orthopaedic Association score, and the Oxford
Shoulder Score. Radiographic measurements included the centre of
rotation distance and the length of the deltoid. All clinical scores were significantly improved post-operatively.
The active flexion and external rotation improved significantly
at the most recent follow-up (p <
0.035). Although the mean centre
of rotation distance changed significantly (p <
0.001), the mean
length of the deltoid did not change significantly from the pre-operative
value (p = 0.29). The change in the length of the deltoid with <
100° flexion was significantly less than that with >
100° (p <
0.001). Progressive erosion of the glenoid was seen in four patients.
No patient required revision or further surgery. A combination of partial subscapularis tendon transfer and small-head
hemiarthroplasty effectively restored function and relieved pain
in patients with rotator cuff arthropathy. Cite this article: 2015;97-B:1090–5.
Knee arthrodesis is a potential salvage procedure
for limb preservation after failure of total knee arthroplasty (TKA) due
to infection. In this study, we evaluated the outcome of single-stage
knee arthrodesis using an intramedullary cemented coupled nail without
bone-on-bone fusion after failed and infected TKA with extensor
mechanism deficiency. Between 2002 and 2012, 27 patients (ten female,
17 male; mean age 68.8 years; 52 to 87) were treated with septic
single-stage exchange. Mean follow-up duration was 67.1months (24
to 143, n = 27) (minimum follow-up 24 months) and for patients with
a minimum follow-up of five years 104.9 (65 to 143,; n = 13). A
subjective patient evaluation (Short Form (SF)-36) was obtained,
in addition to the Visual Analogue Scale (VAS). The mean VAS score was
1.44 (SD 1.48). At final follow-up, four patients had recurrent
infections after arthrodesis (14.8%). Of these, three patients were
treated with a one-stage arthrodesis nail exchange; one of the three
patients had an aseptic loosening with a third single-stage exchange,
and one patient underwent knee amputation for uncontrolled sepsis at
108 months. All patients, including the amputee, indicated that
they would choose arthrodesis again. Data indicate that a single-stage
knee arthrodesis offers an acceptable salvage procedure after failed
and infected TKA. Cite this article:
The aim of this study was to determine whether there is any significant
difference in temporal measurements of pain, function and rates
of re-tear for arthroscopic rotator cuff repair (RCR) patients compared
with those patients undergoing open RCR. This study compared questionnaire- and clinical examination-based
outcomes over two years or longer for two series of patients who
met the inclusion criteria: 200 open RCR and 200 arthroscopic RCR
patients. All surgery was performed by a single surgeon. Objectives
Methods
Patients with pain and loss of shoulder function
due to nonunion of a fracture of the proximal third of the humerus may
benefit from reverse total shoulder replacement. This paper reports
a prospective, multicentre study, involving three hospitals and
three surgeons, of 35 patients (28 women, seven men) with a mean
age of 69 years (46 to 83) who underwent a reverse total shoulder
replacement for the treatment of nonunion of a fracture of the proximal humerus.
Using Checchia’s classification, nine nonunions were type I, eight
as type II, 12 as type III and six as type IV. The mean follow-up
was 51 months (24 to 99). Post-operatively, the patients had a significant
decrease in pain (p <
0.001), and a significant improvement in
flexion, abduction, external rotation and Constant score (p <
0.001), but not in internal rotation. A total of nine complications
were recorded in seven patients: six dislocations, one glenoid loosening
in a patient who had previously suffered dislocation, one transitory
paresis of the axillary nerve and one infection. Reverse total shoulder replacement may lead to a significant
reduction in pain, improvement in function and a high degree of
satisfaction. However, the rate of complications, particularly dislocation,
was high. Cite this article:
Short uncemented humeral stems can preserve humeral
bone stock and facilitate revision surgery but may be prone to malalignment
or loosening, especially when used in reverse total shoulder replacement
(TSR). We undertook a retrospective review of 44 patients with a
mean age of 76 years (59 to 92) who underwent primary reverse TSR
with a short uncemented humeral stem. There were 29 females. The
indications for joint replacement included cuff tear associated
arthropathy (33), avascular necrosis (six), post-traumatic arthritis
(two), and inflammatory arthritis (three). At a mean follow-up of
27 months (24 to 40), pain was rated as mild or none in 43 shoulders
(97.7%). The mean active elevation improved from 54° Cite this article:
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that have recently been published. Such letters will be subject
to the usual stages of selection and editing; where appropriate the
authors of the original article will be offered the opportunity
to reply.
This paper describes the current views on the pathology of lesions of the tendon of the long head of biceps and their management. Their diagnosis is described and their surgical management classified, with details of the techniques employed.
Inherent disadvantages of reverse shoulder arthroplasty
designs based on the Grammont concept have raised a renewed interest
in less-medialised designs and techniques. The aim of this study
was to evaluate the outcome of reverse shoulder arthroplasty (RSA)
with the fully-constrained, less-medialised, Bayley–Walker prosthesis performed
for the treatment of rotator-cuff-deficient shoulders with glenohumeral
arthritis. A total of 97 arthroplasties in 92 patients (53 women
and 44 men, mean age 67 years (standard deviation ( The Bayley–Walker prosthesis provides reliable pain relief and
reasonable functional improvement for patients with symptomatic
cuff-deficient shoulders. Compared with other designs of RSA, it
offers a modest improvement in forward elevation, but restores external
rotation to some extent and prevents scapular notching. A longer
follow-up is required to assess the survival of the prosthesis and
the clinical performance over time. Cite this article:
Limb-injury severity scores are designed to assess orthopaedic and vascular injuries. In Gustilo type-IIIA and type-IIIB injuries they have poor sensitivity and specificity to predict salvage or outcome. We have designed a trauma score to grade the severity of injury to the covering tissues, the bones and the functional tissues, grading the three components from one to five. Seven comorbid conditions known to influence the management and prognosis have been given a score of two each. The score was validated in 109 consecutive open injuries of the tibia, 42 type-IIIA and 67 type-IIIB. The total score was used to assess the possibilities of salvage and the outcome was measured by dividing the injuries into four groups according to their scores as follows: group I scored less than 5, group II 6 to 10, group III 11 to 15 and group IV 16 or more. A score of 14 to indicate amputation had the highest sensitivity and specificity. Our trauma score compared favourably with the Mangled Extremity Severity score in sensitivity (98% and 99%), specificity (100% and 17%), positive predictive value (100% and 97.5%) and negative predictive value (70% and 50%), respectively. A receiver-operating characteristic curve constructed for 67 type-IIIB injuries to assess the efficiency of the scores to predict salvage, showed that the area under the curve for this score was better (0.988 (± 0.013 The scoring system was found to be simple in application and reliable in prognosis for both limb-salvage and outcome measures in type-IIIA and type-IIIB open injuries of the tibia.
Gunshot injuries to the shoulder are rare and
difficult to manage. We present a case series of seven patients
who sustained a severe shoulder injury to the non-dominant side
as a result of a self-inflicted gunshot wound. We describe the injury
as ‘suicide shoulder’ caused by upward and outward movement of the
gun barrel as the trigger is pulled. All patients were male, with
a mean age of 32 years (21 to 48). All were treated at the time
of injury with initial repeated debridement, and within four weeks
either by hemiarthroplasty (four patients) or arthrodesis (three patients).
The hemiarthroplasty failed in one patient after 20 years due to
infection and an arthrodesis was attempted, which also failed due
to infection. Overall follow-up was for a mean of 26 months (12
to 44). All four hemiarthroplasty implants were removed with no
feasible reconstruction ultimately possible, resulting in a poor functional
outcome and no return to work. In contrast, all three primary arthrodeses
eventually united, with two patients requiring revision plating
and grafting. These patients returned to work with a good functional
outcome. We recommend arthrodesis rather than replacement as the
treatment of choice for this challenging injury. Cite this article:
Of 48 consecutive children with Gartland III
supracondylar fractures, 11 (23%) had evidence of vascular injury,
with an absent radial pulse. The hand was pink and warm in eight
and white and cold in the other three patients. They underwent colour-coded
duplex scanning (CCDS) and ultrasound velocimetry (UV) to investigate
the patency of the brachial artery and arterial blood flow. In seven
patients with a pink pulseless hand, CCDS showed a displaced, kinked
and spastic brachial artery and a thrombosis was present in the
other. In all cases UV showed reduced blood flow in the hand. In
three patients with a white pulseless hand, scanning demonstrated
a laceration in the brachial artery and/or thrombosis. In all cases,
the fracture was reduced under general anaesthesia and fixed with
Kirschner wires. Of the seven patients with a pink pulseless hand
without thrombosis, the radial pulse returned after reduction in
four cases. The remaining three underwent exploration, along with
the patients with laceration in the brachial artery and/or thrombosis. We believe that the traditional strategy of watchful waiting
in children in whom the radial pulse remains absent in spite of
good peripheral perfusion should be revisited. Vascular investigation
using these non-invasive techniques that are quick and reliable
is recommended in the management of these patients. Cite this article:
Latissimus dorsi tendon transfer (LDTT) is technically
challenging. In order to clarify the local structural anatomy, we undertook
a morphometric study using six complete cadavers (12 shoulders).
Measurements were made from the tendon to the nearby neurovascular
structures with the arm in two positions: flexed and internally
rotated, and adducted in neutral rotation. The tendon was then transferred
and measurements were taken from the edge of the tendon to a reference
point on the humeral head in order to assess the effect of a novel
two-stage release on the excursion of the tendon. With the shoulder flexed and internally rotated, the mean distances
between the superior tendon edge and the radial nerve, brachial
artery, axillary nerve and posterior circumflex artery were 30 mm
(26 to 34), 28 mm (17 to 39), 21 mm (12 to 28) and 15 mm (10 to
21), respectively. The mean distance between the inferior tendon
edge and the radial nerve, brachial artery and profunda brachii
artery was 18 mm (8 to 27), 22 mm (15 to 32) and 14 mm (7 to 21), respectively.
Moving the arm to a neutral position reduced these distances. A
mean of 15 mm (8 to 21) was gained from a standard soft-tissue release,
and 32 mm (20 to 45) from an extensile release. These figures help to define further the structural anatomy of
this region and the potential for transfer of the latissimus dorsi
tendon. Cite this article:
Reverse total shoulder replacement (RTSR) depends
on adequate deltoid function for a successful outcome. However, the
anterior deltoid and/or axillary nerve may be damaged due to prior
procedures or injury. The purpose of this study was to determine
the compensatory muscle forces required for scapular plane elevation
following RTSR when the anterior deltoid is deficient. The soft
tissues were removed from six cadaver shoulders, except for tendon
attachments. After implantation of the RTSR, the shoulders were
mounted on a custom-made shoulder simulator to determine the mean
force in each muscle required to achieve 30° and 60° of scapular
plane elevation. Two conditions were tested: 1) Control with an
absent supraspinatus and infraspinatus; and 2) Control with anterior
deltoid deficiency. Anterior deltoid deficiency resulted in a mean
increase of 195% in subscapularis force at 30° when compared with
the control (p = 0.02). At 60°, the subscapularis force increased
a mean of 82% (p <
0.001) and the middle deltoid force increased
a mean of 26% (p = 0.04). Scapular plane elevation may still be possible following an RTSR
in the setting of anterior deltoid deficiency. When the anterior
deltoid is deficient, there is a compensatory increase in the force
required by the subscapularis and middle deltoid. Attempts to preserve
the subscapularis, if present, might maximise post-operative function.
The February 2013 Foot &
Ankle Roundup360 looks at: replacement in osteonecrosis of the talus; ankle instability in athletes; long-term follow-up of lateral ankle ligament reconstruction; an operation for Stage II TPD; whether you should operate on Achilles tendon ruptures; Weil osteotomies and Freiberg’s disease; MRI scanning not sensitive for intra-articular lesions; and single-stage debridement and reconstruction in Charcot feet.
The October 2012 Shoulder &
Elbow Roundup360 looks at: fast-absorbing suture anchors for use in shoulder labral tears; double-row rotator cuff repair; degenerate massive rotator cuff tears addressed with partial repair; open and arthroscopic stabilisation of Bankart lesions; predicting the risk of revision humeral head replacement; arthroscopic treatment for frozen shoulder; and long-term follow-up of the Bristow-Latarjet procedure.
This study evaluates the position of the long
head of biceps tendon using ultrasound following simple tenotomy,
in patients with arthroscopically repaired rotator cuff tears. In total, 52 patients with a mean age of 60.7 years (45 to 75)
underwent arthroscopic repair of the rotator cuff and simple tenotomy
of the long head of biceps tendon. At two years post-operatively,
ultrasound revealed that the tendon was inside the bicipital groove
in 43 patients (82.7%) and outside in nine (17.3%); in six of these
it was lying just outside the groove and in the remaining three
(5.8%) it was in a remote position with a positive Popeye Sign.
A dynamic ultrasound scan revealed that the tenotomised tendons
had adhered to the surrounding tissues (autotenodesis).The initial
condition of the tendon influenced its final position (p <
0.0005).
The presence of a Popeye sign was statistically influenced by the
pre-operative co-existence of supraspinatus and subscapularis tears (p
<
0.0001). It appears that the natural history of the tenotomised long head
of biceps tendon is to tenodese itself inside or just outside the
bicipital groove, while its pre-operative condition and coexistent
subscapularis tears play a significant role in the occurrence of
a Popeye sign.
Most fractures of the radial head are stable
undisplaced or minimally displaced partial fractures without an associated
fracture of the elbow or forearm or ligament injury, where stiffness
following non-operative management is the primary concern. Displaced
unstable fractures of the radial head are usually associated with other
fractures or ligament injuries, and restoration of radiocapitellar
contact by reconstruction or prosthetic replacement of the fractured
head is necessary to prevent subluxation or dislocation of the elbow
and forearm. In fractures with three or fewer fragments (two articular
fragments and the neck) and little or no metaphyseal comminution,
open reduction and internal fixation may give good results. However,
fragmented unstable fractures of the radial head are prone to early
failure of fixation and nonunion when fixed. Excision of the radial
head is associated with good long-term results, but in patients
with instability of the elbow or forearm, prosthetic replacement
is preferred. This review considers the characteristics of stable and unstable
fractures of the radial head, as well as discussing the debatable
aspects of management, in light of the current best evidence. Cite this article:
The outcome of an anatomical shoulder replacement
depends on an intact rotator cuff. In 1981 Grammont designed a novel
large-head reverse shoulder replacement for patients with cuff deficiency.
Such has been the success of this replacement that it has led to
a rapid expansion of the indications. We performed a systematic
review of the literature to evaluate the functional outcome of each
indication for the reverse shoulder replacement. Secondary outcome
measures of range of movement, pain scores and complication rates
are also presented.