In order to prevent dislocation of the hip after total hip arthroplasty
(THA), patients have to adhere to precautions in the early post-operative
period. The hypothesis of this study was that a protocol with minimal
precautions after primary THA using the posterolateral approach
would not increase the short-term (less than three months) risk
of dislocation. We prospectively monitored a group of unselected patients undergoing
primary THA managed with standard precautions (n = 109, median age
68.9 years; interquartile range (IQR) 61.2 to 77.3) and a group
who were managed with fewer precautions (n = 108, median age 67.2
years; IQR 59.8 to 73.2). There were no significant differences between
the groups in relation to predisposing risk factors. The diameter
of the femoral head ranged from 28 mm to 36 mm; meticulous soft-tissue
repair was undertaken in all patients. The medical records were
reviewed and all patients were contacted three months post-operatively
to confirm whether they had experienced a dislocation. Aims
Patients and Methods
Hemiarthroplasty of the hip is usually carried out through either
a direct lateral or posterior approach. The aim of this prospective
observational study was to determine any differences in patient-reported
outcomes between the two surgical approaches. From the Swedish Hip Arthroplasty Register we identified patients
of 70 years and above who were recorded as having had a hemiarthroplasty
during 2009. Only patients who had been treated with modern prostheses
were included. A questionnaire was posted to those who remained
alive one year after surgery. A total of 2118 patients (78% of those
available) with a mean age of 85 years (70 to 102) returned the
questionnaire. Aims
Patients and Methods
One goal of total hip arthroplasty is to restore normal hip anatomy.
The aim of this study was to compare displacement of the centre
of rotation (COR) using a standard reaming technique with a technique
in which the acetabulum was reamed immediately peripherally and
referenced off the rim. In the first cohort the acetabulum was reamed to the floor followed
by sequentially larger reamers. In the second cohort the acetabulum
was only reamed peripherally, starting with a reamer the same size
as the native femoral head. Anteroposterior pelvic radiographs were
analysed for acetabular floor depth and vertical and horizontal position
of the COR.Aims
Patients and Methods
The August 2014 Shoulder &
Elbow Roundup360 looks at: Myofibroblasts perhaps not implicated in post-traumatic elbow stiffness; olecranon tip biomechanically sound for coranoid reconstruction; obesity and elbow replacement don’t mix; single column plating successful for extra-articular distal humeral fractures; satisfaction not predictable in frozen shoulder; tenodesis and repair both acceptable in Grade II SLAP tears; glenoid bone grafting is effective and glenohumeral articular lesions best seen with an arthroscope.
Hips with metal-on-metal total hip arthroplasty (MoM THA) have a high rate of adverse local tissue reactions (ALTR), often associated with hypersensitivity reactions. Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) measures tissue perfusion with the parameter Ktrans (volume transfer constant of contrast agent). Our purpose was 1) to evaluate the feasibility of DCE-MRI in patients with THA and 2) to compare DCE-MRI in patients with MoM bearings with metal-on-polyethylene (MoP) bearings, hypothesising that the perfusion index Ktrans in hips with MoM THA is higher than in hips with MoP THA. In this pilot study, 16 patients with primary THA were recruited (eight MoM, eight MoP). DCE-MRI of the hip was performed at 1.5 Tesla (T). For each patient, Ktrans was computed voxel-by-voxel in all tissue lateral to the bladder. The mean Ktrans for all voxels was then calculated. These values were compared with respect to implant type and gender, and further correlated with clinical parameters.Objectives
Methods
This article is a systematic review of the published
literature about the biomechanics, functional outcome and complications
of intramedullary nailing of fractures of the distal radius. We searched the Medline and EMBASE databases and included all
studies which reported the outcome of intramedullary (IM) nailing
of fractures of the distal radius. Data about functional outcome,
range of movement (ROM), strength and complications, were extracted.
The studies included were appraised independently by both authors
using a validated quality assessment scale for non-controlled studies
and the CONSORT statement for randomised controlled trials (RCTs). The search strategy revealed 785 studies, of which 16 were included
for full paper review. These included three biomechanical studies,
eight case series and five randomised controlled trials (RCTs). The biomechanical studies concluded that IM nails were at least
as strong as locking plates. The clinical studies reported that
IM nailing gave a comparable ROM, functional outcome and grip strength
to other fixation techniques. However, the mean complication rate of intramedullary nailing
was 17.6% (0% to 50%). This is higher than the rates reported in
contemporary studies for volar plating. It raises concerns about
the role of intramedullary nailing, particularly when comparative
studies have failed to show that it has any major advantage over
other techniques. Further adequately powered RCTs comparing the
technique to both volar plating and percutaneous wire fixation are needed. Cite this article:
This review explores recent advances in fixator design and used in contemporary orthopaedic practice including the management of bone loss, complex deformity and severe isolated limb injury.
Hip fracture is a common injury associated with
high mortality, long-term disability and huge socio-economic burden.
Yet there has been relatively little research into best treatment,
and evidence that has been generated has often been criticised for
its poor quality. Here, we discuss the advances made towards overcoming
these criticisms and the future directions for hip fracture research:
how co-ordinating existing national infrastructures and use of now
established clinical research networks will likely go some way towards
overcoming the practical and financial challenges of conducting
large trials. We highlight the importance of large collaborative
pragmatic trials to inform decision/policy makers and the progress
made towards reaching a consensus on a core outcome set to facilitate data
pooling for evidence synthesis and meta-analysis. These advances and future directions are a priority in order
to establish the high-quality evidence base required for this important
group of patients. Cite this article:
While use of large national clinical databases for orthopaedic
trauma research has increased dramatically, there has been little
study of the differences in populations contained therein. In this
study we aimed to compare populations of patients with femoral shaft
fractures across three commonly used national databases, specifically
with regard to age and comorbidities. Patients were identified in the Nationwide Inpatient Sample (NIS),
National Surgical Quality Improvement Program (NSQIP) and National
Trauma Data Bank (NTDB). Aims
Patients and Methods
This study identifies early risk factors for symptomatic nonunion
of displaced midshaft fractures of the clavicle that aid identification
of an at risk group who may benefit from surgery. We performed a retrospective study of 88 patients aged between
16 and 60 years that were managed non-operatively. Aims
Methods
A pragmatic multicentre randomised controlled trial (PROFHER)
was conducted in United Kingdom National Health Service (NHS) hospitals
to evaluate the clinical effectiveness and cost effectiveness of
surgery compared with non-surgical treatment for displaced fractures
of the proximal humerus involving the surgical neck in adults. A cost utility analysis from the NHS perspective was performed.
Differences between surgical and non-surgical treatment groups in
costs and quality adjusted life years (QALYs) at two years were
used to derive an estimate of the cost effectiveness of surgery
using regression methods. Aims
Methods
The June 2012 Research Roundup360 looks at: platelet-rich plasma; ageing, bone and mesenchymal stem cells; cytokines and the herniated intervertebral disc; ulcerative colitis, Crohn’s disease and anti-inflammatories; the effect of NSAIDs on bone healing; osteoporosis of the fractured hip; herbal medicine and recovery after acute muscle injury; and ultrasound and the time to fracture union.
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 pelvic discontinuity occurs when the superior
and inferior parts of the hemi-pelvis are no longer connected, which
is difficult to manage when associated with a failed total hip replacement.
Chronic pelvic discontinuity is found in 0.9% to 2.1% of hip revision
cases with risk factors including severe pelvic bone loss, female
gender, prior pelvic radiation and rheumatoid arthritis. Common
treatment options include: pelvic plating with allograft, cage reconstruction,
custom triflange implants, and porous tantalum implants with modular augments.
The optimal technique is dependent upon the degree of the discontinuity,
the amount of available bone stock and the likelihood of achieving
stable healing between the two segments. A method of treating pelvic
discontinuity using porous tantalum components with a distraction
technique that achieves both initial stability and subsequent long-term
biological fixation is described. Cite this article:
We reviewed 34 consecutive patients (18 female-16 male) with
isthmic spondylolysis and grade I to II lumbosacral spondylolisthesis
who underwent in situ posterolateral arthodesis between the L5 transverse
processes and the sacral ala with the use of iliac crest autograft.
Ten patients had an associated scoliosis which required surgical correction
at a later stage only in two patients with idiopathic curves unrelated
to the spondylolisthesis. No patient underwent spinal decompression or instrumentation
placement. Mean surgical time was 1.5 hours (1 to 1.8) and intra-operative
blood loss 200 ml (150 to 340). There was one wound infection treated
with antibiotics but no other complication. Radiological assessment
included standing posteroanterior and lateral, Ferguson and lateral flexion/extension
views, as well as CT scans. Aims
Methods
The treatment of infected nonunions is difficult.
Antibiotic cement-coated (ACC) rods provide stability as well as delivering
antibiotics. We conducted a review of 110 infected nonunions treated
with ACC rods. Patients were divided into two groups: group A (67
patients) with an infected arthrodesis, and group B (43 patients)
with an infected nonunion in a long bone. In group A, infected arthrodesis,
the success rate after the first procedure was 38/67 (57%), 29/67
(43%) required further surgery for either control of infection or
non-union. At last follow-up, five patients required amputation,
representing a limb salvage rate of 62/67 (93%) overall. In all,
29/67 (43%) presented with a bone defect with a mean size of 6.78
cm (2 to 25). Of those with a bone defect, 13/29 (45%) required
further surgery and had a mean size of defect of 7.2 cm (3.5 to
25). The cultures were negative in 17/67 (26%) and the most common
organism cultured was methicillin-resistant Cite this article:
