We have evaluated the difference in the migration patterns over two years of two cementless stems in a randomised, controlled trial using radiostereophotogrammetric analysis (RSA). The implants studied were the
This study reports the results of 38 total hip
arthroplasties (THAs) in 33 patients aged <
50 years, using the
JRI
Continued controversy exists between cemented versus uncemented hemiarthroplasty for an intracapsular hip fracture. To assist in resolving this controversy, 400 patients were randomised between a cemented polished tapered stem hemiarthroplasty and an uncemented
Introduction. The longevity of total hip replacements in young active patients is a cause for concern as increased cyclical loading can result in early loosening of implants resulting in multiple revisions during the patient's lifetime. The study presented demonstrates excellent survival of the HAC-coated femoral stems in young active individuals. Patients/Materials & Methods. 33 Patients under 50 years of age underwent 38 total hip arthroplasties using the JRI
Background: Total Hip Replacements in younger active patients continues to pose a major challenge. Surface replacement techniques, designed to preserve bone stock do not yet have proven long term results. Early cemented designs in this population had high failure rates. Concept of fixation of total hip prosthesis by bony in-growth rather than by cement is an attempt to decrease the incidence of loosening. Ceramic joint surfaces produce minimal wear debris. Objectives: A medium term follow-up of clinical and radiological results of the JRI
Objective. In many institutions, serial casting and splinting requires many weeks of treatment and frequently results in surgery. This study evaluated the results of neonatal clubfoot correction with the
We followed up 82 patients who under went 92
We followed up 83 patients who under went 92
Introduction: There are more than 60 different hip prostheses currently available for total hip replacement (THR). Cemented prostheses make up about 90 to 95% of current total UK market. The cost of THR prosthesis varies widely with some prostheses cost 5 times more than others.
Since 1986 the JRI
Cementless total hip replacements (THR) have a theoretical advantage over cemented designs in that bone lysis and probably aseptic loosening are less common complications. NICE guidelines suggest that prosthesis should have an aseptic loosening rate of <
10% at 10 years. Long-term follow-up of the Joint Replacement Instrumentation (JRI) Hydroxyapatite coated (HAC)
Aims. This study reports the results of 38 total hip arthroplasties (THAs) in 33 patients aged less than 50 years, using the JRI
Introduction. Primary mechanical stability is important with uncemented THR because early migration is reduced, leading to more rapid osseointegration between the implant and bone. Such primary mechanical stability is provided by the design features of the device. The aim of this study was to compare the migration patterns of two uncemented hip stems, the
In 2004 we described the ten-year prospective results of 38 total hip replacements using the
Aims. Debate continues about whether it is better to use a cemented or uncemented hemiarthroplasty to treat a displaced intracapsular fracture of the hip. The aim of this study was to attempt to resolve this issue for contemporary prostheses. Methods. A total of 400 patients with a displaced intracapsular fracture of the hip were randomized to receive either a cemented polished tapered stem hemiarthroplasty or an uncemented