We evaluated the rates of survival and cause
of revision of seven different brands of
A 65-year-old man presented with a painful hip five years after a
We report the histology of a femur retrieved 3.5 years after a cemented revision of a hip replacement in which impaction allografting had been used to fill two large cortical defects. The allograft chips had largely been replaced by viable cortical bone, and the interface between cement and tissue resembled that seen after primary
Although the use of constrained
We assessed 100 patients with a primary total hip replacement using the Harris hip score and the Nottingham Health Profile at one, three and five years after operation. They were derived from two prospective randomised series of
The role of inflammatory cells in aseptic loosening and failure of
Fifty-four cobalt-chrome alloy femoral heads were retrieved at revision surgery or at post-mortem; 23 came from uncemented, eight from hybrid and 23 from cemented hip arthroplasties. The uncemented and hybrid implants had porous coating, metal backing and modular femoral heads; with one exception none of the cemented implants had any of these. Twenty-five of the 31 heads from uncemented and hybrid arthroplasties, and 11 of the 23 heads from
Exchange operation is recommended as the treatment of choice for most deep infections involving a total hip replacement. This revision arthroplasty comprises, in one stage, excision of soft tissue, removal of implant and
The aims of this study were to characterize antibiotic choices for perioperative total knee arthroplasty (TKA) and total hip arthroplasty (THA) prophylaxis, assess antibiotic allergy testing efficacy, and determine rates of prosthetic joint infection (PJI) based on perioperative antibiotic regimen. We evaluated all patients undergoing primary TKA or THA at a single academic institution between January 2004 and May 2017, yielding 29 695 arthroplasties (22 705 patients), with 3411 arthroplasties in 2576 patients (11.5%) having undergone preoperative allergy testing. A series of institutional databases were combined to identify allergy consultation outcomes, perioperative antibiotic regimen, and infection-free survivorship until final follow-up.Aims
Patients and Methods
Reports of differing failure rates of total hip prostheses made of various metals prompted us to measure the size of metallic and polyethylene particulate debris around failed
We have evaluated prospectively the incidence and location of deep-vein thrombosis (DVT), the risk factors for pulmonary embolism, and the natural history of thrombosis after total knee replacement (TKR) in patients who did not receive prophylactic or therapeutic treatment for DVT. We studied 227 patients who underwent primary TKR; 116 had one-stage bilateral and 111 unilateral procedures. Coagulation assays, the full blood count and blood typing tests for the serum chemical profile were undertaken in all patients on three separate occasions. Bilateral simultaneous or unilateral venograms were carried out at six or seven days after operation. Perfusion lung scanning was undertaken before and at seven or eight days after operation. Bilateral simultaneous or unilateral venograms were repeated six months after operation in all patients who had thrombi. In the 116 patients with a bilateral replacement, 97 of 232 venograms (41.8%) were positive for fresh thrombi while there were 46 positive venograms (41.4%) in the 111 patients with a unilateral replacement (p = 1.000). Of the 116 venograms in knees with a
Aims
Patients and Methods
Laser-engineered net shaping (LENS) of coated surfaces can overcome the limitations of conventional coating technologies. We compared the The Objectives
Methods
Revision total elbow arthroplasty (TEA) is often challenging.
The aim of this study was to report on the clinical and radiological
results of revision arthroplasty of the elbow with the Latitude
TEA. Between 2006 and 2010 we used the Latitude TEA for revision in
18 consecutive elbows (17 patients); mean age 53 years (28 to 80);
14 women. A Kudo TEA was revised in 15 elbows and a Souter-Strathclyde
TEA in three. Stability, range of movement (ROM), visual analogue score (VAS)
for pain and functional scores, Elbow Functional Assessment Scale
(EFAS), the Functional Rating Index of Broberg and Morrey (FRIBM)
and the Modified Andrews’ Elbow Scoring System (MAESS) were assessed
pre-operatively and at each post-operative follow-up visit (six,
12 months and biennially thereafter). Radiographs were analysed
for loosening, fractures and dislocation. The mean follow-up was
59 months (26 to 89).Aims
Patients and Methods
Our aim was to analyse the long-term functional outcome of two
forms of surgical treatment for active patients aged >
70 years
with a displaced intracapsular fracture of the femoral neck. Patients
were randomised to be treated with either a hemiarthroplasty or
a total hip arthroplasty (THA). The outcome five years post-operatively
for this cohort has previously been reported. We present the outcome
at 12 years post-operatively. Initially 252 patients with a mean age of 81.1 years (70.2 to
95.6) were included, of whom 205 (81%) were women. A total of 137
were treated with a cemented hemiarthroplasty and 115 with a cemented
THA. At long-term follow-up we analysed the modified Harris Hip
Score (HHS), post-operative complications and intra-operative data
of the patients who were still alive.Aims
Patients and Methods
This review summarises the evidence for the treatment
of displaced fractures of the femoral neck in elderly patients.
Results from randomised clinical trials and national register studies are
presented when available. The advantages of arthroplasty compared with internal fixation
are supported by several studies. A number of studies contribute
to the discussions of total hip arthroplasty (THA) The direct lateral approach reduces the risk of dislocation compared
with the posterior approach. Cemented implants lower the risk of
periprosthetic fracture and its subsequent morbidity and mortality.
As the risk of peri-operative death related to bone cement can be reduced
by adequate measures, cemented implants are recommended in fracture
cases. Take home message: There remains a great variation in the surgical
management of patients with a hip fracture, and an evidence-based
approach should improve the outcomes for this vulnerable patient
group. Cite this article:
Tissue responses to debris formed by abrasion of polymethylmethacrylate
(PMMA) spacers at two-stage revision arthroplasty for prosthetic
joint infection are not well described. We hypothesised that PMMA
debris induces immunomodulation in periprosthetic tissues. Samples of tissue were taken during 35 two-stage revision arthroplasties
(nine total hip and 26 total knee arthroplasties) in patients whose
mean age was 67 years (44 to 85). Fourier transform infrared microscopy
was used to confirm the presence of PMMA particles. Histomorphometry
was performed using Sudan Red and Haematoxylin-Eosin staining.
CD-68, CD-20, CD-11(c), CD-3 and IL-17 antibodies were used to immunophenotype
the inflammatory cells. All slides were scored semi-quantitatively
using the modified Willert scoring system.Aims
Patients and Methods
Prophylactic antibiotics can decrease the risk
of wound infection and have been routinely employed in orthopaedic surgery
for decades. Despite their widespread use, questions still surround
the selection of antibiotics for prophylaxis, timing and duration
of administration. The health economic costs associated with wound
infections are significant, and the judicious but appropriate use
of antibiotics can reduce this risk. This review examines the evidence behind commonly debated topics
in antibiotic prophylaxis and highlights the uses and advantages
of some commonly used antibiotics. Cite this article: