Plating displaced proximal humeral fractures is associated with a high rate of screw perforation. Dynamization of the proximal screws might prevent these complications. The aim of this study was to develop and evaluate a new gliding screw concept for plating proximal humeral fractures biomechanically. Eight pairs of three-part humeral fractures were randomly assigned for pairwise instrumentation using either a prototype gliding plate or a standard PHILOS plate, and four pairs were fixed using the gliding plate with bone cement augmentation of its proximal screws. The specimens were cyclically tested under progressively increasing loading until perforation of a screw. Telescoping of a screw, varus tilting and screw migration were recorded using optical motion tracking.Aims
Methods
The diagnosis of periprosthetic joint infection can be difficult
due to the high rate of culture-negative infections. The aim of
this study was to assess the use of next-generation sequencing for
detecting organisms in synovial fluid. In this prospective, single-blinded study, 86 anonymized samples
of synovial fluid were obtained from patients undergoing aspiration
of the hip or knee as part of the investigation of a periprosthetic
infection. A panel of synovial fluid tests, including levels of
C-reactive protein, human neutrophil elastase, total neutrophil
count, alpha-defensin, and culture were performed prior to next-generation
sequencing.Aims
Materials and Methods
This 501-patient, multi-centre, randomised controlled trial sought
to establish the effect of low-intensity, pulsed, ultrasound (LIPUS)
on tibial shaft fractures managed with intramedullary nailing. We
conducted an economic evaluation as part of this trial. Data for patients’ use of post-operative healthcare resources
and time taken to return to work were collected and costed using
publicly available sources. Health-related quality of life, assessed
using the Health Utilities Index Mark-3 (HUI-3), was used to derive
quality-adjusted life years (QALYs). Costs and QALYs were compared
between LIPUS and control (a placebo device) from a payer and societal
perspective using non-parametric bootstrapping. All costs are reported
in 2015 Canadian dollars unless otherwise stated.Aims
Patients and Methods
The aim of this study was to compare the outcomes of surgery
using growing rods in patients with severe A review of a multicentre EOS database identified 107 children
with severe EOS (major curve ≥ 90°) treated with growing rods before
the age of ten years with a minimum follow-up of two years and three
or more lengthening procedures. From the same database, 107 matched
controls with moderate EOS were identified.Aims
Patients and Methods
A high rate of suicide has been reported in patients who sustain
fractures, but the association remains uncertain in the context
of other factors. The aim of this study was to examine the association
between fractures and the risk of suicide in this contextual setting. We performed a case-control study of patients aged 40 years or
older who died by suicide between 2000 and 2011. We included patients’
demographics, physical and mental health problems, and socioeconomic
factors. We performed conditional logistic regression to evaluate
the associations between fractures and the risk of suicide.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
Although we often encounter patients with an aortic aneurysm
who also have diffuse idiopathic skeletal hyperostosis (DISH), there
are no reports to date of an association between these two conditions
and the pathogenesis of DISH remains unknown. This study therefore
evaluated the prevalence of DISH in patients with a thoracic aortic
aneurysm (AA). The medical records of 298 patients who underwent CT scans for
a diagnosis of an AA or following high-energy trauma were retrospectively
examined. A total of 204 patients underwent surgery for an AA and
94 had a high-energy injury and formed the non-AA group. The prevalence
of DISH was assessed on CT scans of the chest and abdomen and the
relationship between DISH and AA by comparison between the AA and
non-AA groups.Aims
Patients and Methods
Patellofemoral arthroplasty (PFA) has experienced significant
improvements in implant survivorship with second generation designs.
This has renewed interest in PFA as an alternative to total knee
arthroplasty (TKA) for younger active patients with isolated patellofemoral
osteoarthritis (PF OA). We analysed the cost-effectiveness of PFA We used a Markov transition state model to compare cost-effectiveness
between PFA and TKA. Simulated patients were aged 60 (base case)
and 50 years. Lifetime costs (2015 United States dollars), quality-adjusted
life year (QALY) gains and incremental cost-effectiveness ratio
(ICER) were calculated from a healthcare payer perspective. Annual rates
of revision were derived from the National Joint Registry for England,
Wales, Northern Ireland and the Isle of Man. Deterministic and probabilistic
sensitivity analysis was performed for all parameters against a
$50 000/QALY willingness to pay. Aims
Patients and Methods
Pulsed electromagnetic field (PEMF) stimulation was evaluated after anterior cervical discectomy and fusion (ACDF) procedures in a randomized, controlled clinical study performed for United States Food and Drug Administration (FDA) approval. PEMF significantly increased fusion rates at six months, but 12-month fusion outcomes for subjects at elevated risk for pseudoarthrosis were not thoroughly reported. The objective of the current study was to evaluate the effect of PEMF treatment on subjects at increased risk for pseudoarthrosis after ACDF procedures. Two evaluations were performed that compared fusion rates between PEMF stimulation and a historical control (160 subjects) from the FDA investigational device exemption (IDE) study: a Objectives
Methods
The purpose of this study was to describe the effect of histological
grade on disease-specific survival in patients with chondrosarcoma. A total of 343 patients with a chondrosarcoma were included.
The histological grade was assessed on the initial biopsy and on
the resection specimen. Where the histology showed a mixed grade,
the highest grade was taken as the definitive grade. When only small
focal areas showed higher grade, the final grade was considered
as both.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 aim of this study was to evaluate antegrade autologous bone
grafting with the preservation of articular cartilage in the treatment
of symptomatic osteochondral lesions of the talus with subchondral
cysts. The study involved seven men and five women; their mean age was
35.9 years (14 to 70). All lesions included full-thickness articular
cartilage extending through subchondral bone and were associated
with subchondral cysts. Medial lesions were exposed through an oblique
medial malleolar osteotomy, and one lateral lesion was exposed by
expanding an anterolateral arthroscopic portal. After refreshing
the subchondral cyst, it was grafted with autologous cancellous
bone from the distal tibial metaphysis. The fragments of cartilage
were fixed with 5-0 nylon sutures to the surrounding cartilage.
Function was assessed at a mean follow-up of 25.3 months (15 to
50), using the American Orthopaedic Foot and Ankle Society (AOFAS)
ankle-hindfoot outcome score. The radiological outcome was assessed
using MRI and CT scans.Aims
Patients and Methods
In the time since Letournel popularised the surgical
treatment of acetabular fractures, more than 25 years ago, there
have been many changes within the field, related to patients, surgical
technique, implants and post-operative care. However, the long-term
outcomes appear largely unchanged. Does this represent stasis or
have the advances been mitigated by other negative factors? In this
article we have attempted to document the recent changes within
the surgery of patients with a fracture involving the acetabulum,
outline contemporary management, and identify the major problem
areas where further research is most needed. Cite this article:
1. The results of treatment of 134 patients with congenital dislocation of 167 hips are reviewed. 2. Late diagnosis is still a major problem. 3. Subluxations rarely give rise to poor results, but in dislocations first treated over the age of five years there is a one-in-three risk of failure. 4. Manipulative reduction is successful less often than reduction on a frame and carries a higher risk of avascular necrosis. 5. Closed reduction on a frame was satisfactory in 58 per cent of patients under the age of three years, and can succeed up to the age of five. 6. Open reduction was required in 20 per cent of cases under the age of three, and can be used successfully up to the age of six. 7. Seven anatomical barriers to closed reduction have been recognised and two or more are commonly found in one hip when open reduction is performed. 8. The acetabular roof may
The number of arthroplasties of the hip and knee
is predicted to increase rapidly during the next 20 years. Accompanying
this is the dilemma of how to follow-up these patients appropriately.
Current guidelines recommend long-term follow-up to identify patients
with aseptic loosening, which can occur more than a decade postoperatively.
The current guidelines and practices of orthopaedic surgeons vary
widely. Existing models take up much clinical time and are expensive.
Pilot studies using ‘virtual’ clinics and advanced-practice physiotherapists
have shown promise in decreasing the time and costs for orthopaedic surgeons
and patients. This review discusses current practices and future trends in
the follow-up of patients who have an arthroplasty. Cite this article:
The aim of the study was to analyze the results of primary tendon
reinsertion in acute and chronic distal triceps tendon ruptures
(DTTRs) in the general population. A total of 28 patients were operated on for primary DTTR reinsertions,
including 21 male patients and seven female patients with a mean
age of 45 years (14 to 76). Of these patients, 23 sustained an acute
DTTR and five had a chronic injury. One patient had a non-simultaneous
bilateral DTTR. Seven patients had DTTR-associated ipsilateral fracture
or dislocation. Comorbidities were present in four patients. Surgical
treatment included transosseous and suture-anchors reinsertion in
22 and seven DTTRs, respectively. The clinical evaluation was performed
using Mayo Elbow Performance Score (MEPS), the modified American
Shoulder and Elbow Surgeons Score (m-ASES), the Quick Disabilities
of the Arm, Shoulder and Hand score (QuickDASH), and the Medical
Research Council (MRC) Scale.Aims
Patients and Methods
