This study aimed to evaluate implant survival of reverse hybrid
total hip arthroplasty (THA) at medium-term follow-up. A consecutive series of 1082 THAs in 982 patients with mean follow-up
of 7.9 years (5 to 11.3) is presented. Mean age was 69.2 years (21
to 94). Of these, 194 (17.9%) were in patients under 60 years, 663
(61.3%) in female patients and 348 (32.2%) performed by a trainee.
Head size was 28 mm in 953 hips (88.1%) or 32 mm in 129 hips (11.9%).
Survival analysis was performed and subgroups compared using log
rank tests.Aims
Patients and Methods
In order to evaluate the effectiveness of the Mobi-C implant
in cervical disc degeneration, a randomised study was conducted,
comparing the Mobi-C prosthesis arthroplasty with anterior cervical
disc fusion (ACDF) in patients with single level cervical spondylosis. From January 2008 to July 2009, 99 patients were enrolled and
randomly divided into two groups, those having a Mobi-C implant
(n = 51; 30 men, 21 women) and those undergoing ACDF (n = 48; 28
men, 20 women).The patients were followed up for five years, with
the primary outcomes being the Japanese Orthopaedic Association
score, visual analogue scale for pain and the incidence of further
surgery. The secondary outcomes were the Neck Disability Index and
range of movement (ROM) of the treated segment.Aims
Patients and Methods
To investigate the longevity of uncemented fixation of a femoral
component in total hip arthroplasty (THA) in patients with Dorr
type C proximal femoral morphology. A total of 350 consecutive uncemented THA in 320 patients were
performed between 1983 and 1987, by a single surgeon using the Taperloc
femoral component. The 63 patients (68 hips) with Dorr type C proximal
femoral morphology were the focus of this review. The mean age of
the patients was 69 years (24 to 88) and mean follow-up was 16.6
years (ten to 29). Survival analysis included eight patients (eight
hips) who died without undergoing revision surgery prior to obtaining
ten years follow-up. All 55 surviving patients (60 hips) were available
for clinical assessment and radiographic review. As a comparator
group, the survival and implant fixation in the remaining 282 THAs
(257 patients) with Dorr type A and B morphology were evaluated.
The mean age of these patients was 52 years (20 to 82).Aims
Patients and Methods
Total hip replacement (THR) after acetabular
fracture presents unique challenges to the orthopaedic surgeon.
The majority of patients can be treated with a standard THR, resulting
in a very reasonable outcome. Technical challenges however include
infection, residual pelvic deformity, acetabular bone loss with
ununited fractures, osteonecrosis of bone fragments, retained metalwork,
heterotopic ossification, dealing with the sciatic nerve, and the
difficulties of obtaining long-term acetabular component fixation.
Indications for an acute THR include young patients with both femoral
head and acetabular involvement with severe comminution that cannot
be reconstructed, and the elderly, with severe bony comminution.
The outcomes of THR for established post-traumatic arthritis include
excellent pain relief and functional improvements. The use of modern
implants and alternative bearing surfaces should improve outcomes
further. Cite this article:
Large femoral heads have become popular in total
hip replacement (THR) as a method of reducing the risk of dislocation.
However, if large heads are used in ceramic-on-ceramic THR, the
liner must be thinner, which may increase the risk of fracture.
To compare the rates of ceramic fracture and dislocation between
28 mm and 32 mm ceramic heads, 120 hips in 109 patients (51 men
and 58 women, mean age 49.2 years) were randomised to THR with either
a 28 mm or a 32 mm ceramic articulation. A total of 57/60 hips assigned
to the 28 mm group and 55/60 hips assigned to the 32 mm group were
followed for at least five years. No ceramic component fractures
occured in any patient in either group. There was one dislocation
in the 32 mm group and none in the 28 mm group (p = 0.464). No hip
had detectable wear, focal osteolysis or prosthetic loosening. In
our small study the 32 mm ceramic articulation appeared to be safe
in terms of ceramic liner fracture. Cite this article:
Dislocation rates are reportedly lower in patients requiring
proximal femoral hemiarthroplasty than for patients undergoing hip
arthroplasty for neoplasia. Without acetabular replacement, pain
due to acetabular wear necessitating revision surgery has been described.
We aimed to determine whether wear of the native acetabulum following
hemiarthroplasty necessitates revision surgery with secondary replacement
of the acetabulum after proximal femoral replacement (PFR) for tumour
reconstruction. We reviewed 100 consecutive PFRs performed between January 2003
and January 2013 without acetabular resurfacing. The procedure was
undertaken in 74 patients with metastases, for a primary bone tumour
in 20 and for myeloma in six. There were 48 male and 52 female patients,
with a mean age of 61.4 years (19 to 85) and median follow-up of
two years (interquartile range (IQR) 0.5 to 3.7 years). In total,
52 patients presented with a pathological fracture and six presented
with failed fixation of a previously instrumented pathological fracture.Aims
Patients and Methods
The Essex-Lopresti injury (ELI) of the forearm
is a rare and serious condition which is often overlooked, leading
to a poor outcome. The purpose of this retrospective case study was to establish
whether early surgery can give good medium-term results. From a group of 295 patients with a fracture of the radial head,
12 patients were diagnosed with ELI on MRI which confirmed injury
to the interosseous membrane (IOM) and ligament (IOL). They were
treated by reduction and temporary Kirschner (K)-wire stabilisation
of the distal radioulnar joint (DRUJ). In addition, eight patients
had a radial head replacement, and two a radial head reconstruction. All patients were examined clinically and radiologically 59 months
(25 to 90) after surgery when the mean Mayo Modified Wrist Score
(MMWS) was 88.4 (78 to 94), the mean Mayo Elbow Performance Scores
(MEPS) 86.7 (77 to 95) and the mean disabilities of arm, shoulder
and hand (DASH) score 20.5 (16 to 31): all of these indicate a good outcome. In case of a high index of suspicion for ELI in patients with
a radial head fracture, we recommend the following: confirmation
of IOM and IOL injury with an early MRI scan; early surgery with
reduction and temporary K-wire stabilisation of the DRUJ; preservation
of the radial head if at all possible or replacement if not, and
functional bracing in supination. This will increase the prospect
of a good result, and avoid the complications of a missed diagnosis
and the difficulties of late treatment. Cite this article:
The timing of total hip replacement (THR) in
patients with active tuberculosis (TB) of the hip is controversial, because
of the potential risk of reactivation of infection. There is little
information about the outcome of THR in these patients. We conducted
a systematic review of published studies that evaluated the outcome
of THR in patients with active TB of the hip. A review of multiple
databases referenced articles published between 1950 and 2012. A
total of six articles were identified, comprising 65 patients. TB
was confirmed histologically in all patients. The mean follow-up
was 53.2 months (24 to 108). Antituberculosis treatment continued
post-operatively for between six and 15 months, after debridement
and THR. One non-compliant patient had reactivation of infection.
At the final follow-up the mean Harris hip score was 91.7 (56 to
98). We conclude that THR in patients with active TB of the hip
is a safe procedure, providing symptomatic relief and functional
improvement if undertaken in association with extensive debridement
and appropriate antituberculosis treatment. Cite this article:
The aim of this randomised controlled study was
to compare functional and radiological outcomes between modern cemented
and uncemented hydroxyapatite coated stems after one year in patients
treated surgically for a fracture of the femoral neck. A total of
141 patients aged >
65 years were included. Patients were randomised
to be treated with a cemented Exeter stem or an uncemented Bimetric
stem. The patients were reviewed at four and 12 months. The cemented group performed better than the uncemented group
for the Harris hip score (78 In conclusion, our data do not support the use of an uncemented
hydroxyapatite coated stem for the treatment of displaced fractures
of the femoral neck in the elderly. Cite this article:
We present a case series of ten metal-on-polyethylene total hip
arthroplasties (MoP THAs) with delayed dislocation associated with
unrecognised adverse local tissue reaction due to corrosion at the
trunnion and pseudotumour formation. The diagnosis was not suspected in nine of the ten patients (six
female/four male; mean age 66 years), despite treatment in a specialist
unit (mean time from index surgery to revision was 58 months, 36
to 84). It was identified at revision surgery and subsequently confirmed
by histological examination of resected tissue. Pre-operative assessment
and culture results ruled out infection. A variety of treatment
strategies were used, including resection of the pseudotumour and
efforts to avoid recurrent dislocation. Aims
Methods
The hip joint is commonly involved in multiple epiphyseal dysplasia and patients may require total hip replacement before the age of 30 years. We retrospectively reviewed nine patients (16 hips) from four families. The diagnosis of multiple epiphyseal dysplasia was based on a family history, genetic counselling, clinical features and radiological findings. The mean age at surgery was 32 years (17 to 63), with a mean follow-up of 15.9 years (5.5 to 24). Of the 16 hips, ten required revision at a mean of 12.5 years (5 to 15) consisting of complete revision of the acetabular component in three hips and isolated exchange of the liner in seven. No femoral component has loosened or required revision during the period of follow-up. With revision for any reason, the 15-year survival was only 11.4% (95% confidence interval 1.4 to 21.4). However, when considering revision of the acetabular shell in isolation the survival at ten years was 93.7% (95% confidence interval 87.7 to 99.7), reducing to 76.7% (95% confidence interval 87.7 to 98.7) at 15 and 20 years, respectively.
Pre-operative planning for total hip replacement
(THR) is challenging in hips with severe acetabular deformities, including
those with a hypoplastic acetabulum or severe defects and in the
presence of arthrodesis or ankylosis. We evaluated whether a Rapid
Prototype (RP) model, which is a life-sized reproduction based on
three-dimensional CT scans, can determine the feasibility of THR
and provide information about the size and position of the acetabular component
in severe acetabular deformities. THR was planned using an RP model
in 21 complex hips in five men (five hips) and 16 women (16 hips)
with a mean age of 47.7 years (24 to 70) at operation. An acetabular
component was implanted successfully and THR completed in all hips.
The acetabular component used was within 2 mm of the predicted size
in 17 hips (80.9%). All of the acetabular components and femoral
stems had radiological evidence of bone ingrowth and stability at
the final follow-up, without any detectable wear or peri-prosthetic
osteolysis. The RP model allowed a simulated procedure pre-operatively
and was helpful in determining the feasibility of THR pre-operatively,
and to decide on implant type, size and position in complex THRs. Cite this article:
The number of arthroplasties being performed
increases each year. Patients undergoing an arthroplasty are at
risk of venous thromboembolism (VTE) and appropriate prophylaxis
has been recommended. However, the optimal protocol and the best
agent to minimise VTE under these circumstances are not known. Although
many agents may be used, there is a difference in their efficacy
and the risk of bleeding. Thus, the selection of a particular agent relies
on the balance between the desire to minimise VTE and the attempt
to reduce the risk of bleeding, with its undesirable, and occasionally
fatal, consequences. Acetylsalicylic acid (aspirin) is an agent for VTE prophylaxis
following arthroplasty. Many studies have shown its efficacy in
minimising VTE under these circumstances. It is inexpensive and
well-tolerated, and its use does not require routine blood tests.
It is also a ‘milder’ agent and unlikely to result in haematoma
formation, which may increase both the risk of infection and the
need for further surgery. Aspirin is also unlikely to result in persistent
wound drainage, which has been shown to be associated with the use
of agents such as low-molecular-weight heparin (LMWH) and other
more aggressive agents. The main objective of this review was to summarise the current
evidence relating to the efficacy of aspirin as a VTE prophylaxis
following arthroplasty, and to address some of the common questions
about its use. There is convincing evidence that, taking all factors into account,
aspirin is an effective, inexpensive, and safe form of VTE following
arthroplasty in patients without a major risk factor for VTE, such
as previous VTE. Cite this article:
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:
The long-term survival of the cementless Spotorno
CLS femoral component in patients aged >
50 years at the time of
arthroplasty was investigated. Survivorship analysis of a consecutive
series of 85 patients (100 hips; under 50 years of age at a mean
follow-up of 18.4 years (16.3 to 20.8)) was performed. The clinical
and radiographic outcomes were satisfactory. The overall rate of
survival of the femoral component was 93.5% (95% confidence interval
(CI), 90.9 to 96.1) after 19 years. Survival with revision for aseptic
loosening as the end point was 95.7% (95% CI 93.6 to 97.8%) at 19
years. This study demonstrates an excellent long-term survival of the
Spotorno CLS femoral component after 16 to 20 years in young patients
undergoing total hip arthroplasty. Cite this article:
The aims of this study were to compare the diagnostic test characteristics
of ultrasound alone, metal artefact reduction sequence MRI (MARS-MRI)
alone, and ultrasound combined with MARS-MRI for identifying intra-operative
pseudotumours in metal-on-metal hip resurfacing (MoMHR) patients
undergoing revision surgery. This retrospective diagnostic accuracy study involved 39 patients
(40 MoMHRs). The time between imaging modalities was a mean of 14.6
days (0 to 90), with imaging performed at a mean of 5.3 months (0.06
to 12) before revision. The prevalence of intra-operative pseudotumours
was 82.5% (n = 33).Aims
Methods
This study compares the outcomes of two methods
of fixation of displaced fractures of the radial neck. The 58 patients
with a mean age of 38.5 years (18 to 56), were treated in a non
randomised study with screws (n = 29) or a plate and screws (n =
29) according to the surgeon’s preference. The patients were reviewed at one year. Radiographs and functional
evaluations were carried out up to one year post-operatively, using
the Broberg and Morrey functional evaluation score, range of movement,
and assessment of complications. The mean functional scores did not differ significantly between
groups (90 (55 to 100) Cite this article:
We studied the effect of trochanteric osteotomy in 192 total hip replacements in 140 patients with congenital hip disease. There was bony union in 158 hips (82%), fibrous union in 29 (15%) and nonunion in five (3%). The rate of union had a statistically significant relationship with the position of reattachment of the trochanter, which depended greatly on the pre-operative diagnosis. The pre-operative Trendelenburg gait substantially improved in all three disease types (dysplasia, low and high dislocation) and all four categories of reattachment position. A persistent Trendelenburg gait post-operatively was noticed mostly in patients with defective union (fibrous or nonunion). Acetabular and femoral loosening had a statistically significant relationship with defective union and the position of reattachment of the trochanter. These results suggest that the complications of trochanteric osteotomy in total hip replacement for patients with congenital hip disease are less important than the benefits of this surgical approach.
