Aims. The aim of this study was to explore the relationship between reason for
This study compares the re-revision rate and mortality following septic and aseptic revision hip arthroplasty (rTHA) in registry data, and compares the outcomes to previously reported data. This is an observational cohort study using data from the German Arthroplasty Registry (EPRD). A total of 17,842 rTHAs were included, and the rates and cumulative incidence of hip re-revision and mortality following septic and aseptic rTHA were analyzed with seven-year follow-up. The Kaplan-Meier estimates were used to determine the re-revision rate and cumulative probability of mortality following rTHA.Aims
Methods
Aims. Dislocation remains a leading cause of failure following
Aims. The aim of this study is to report the long-term outcomes of instrumented femoral revisions with impaction allograft bone grafting (IBG) using the X-change femoral revision system at 30 years after introduction of the technique. Methods. We updated the outcomes of our previous study, based on 208 consecutive revisions using IBG and the X-change femoral revision system in combination with a cemented polished stem, performed in our tertiary care institute between 1991 and 2007. Kaplan-Meier survival analyses were used to determine the survival rate of the revisions with endpoint revision for any reason and aseptic loosening. Secondary outcomes were radiological loosening and patient-reported outcome measures. Results. Mean age at
Aims. The aim of this study was to examine the implant accuracy of custom-made partial pelvis replacements (PPRs) in
Aims. To determine if primary cemented acetabular component geometry (long posterior wall (LPW), hooded, or offset reorientating) influences the risk of
Aims. Modular dual mobility (MDM) acetabular components are often used with the aim of reducing the risk of dislocation in
Aims. Studying the indications for
Aims. The aim of this study was to identify modifiable risk factors associated with mortality in patients requiring
Aims.
We prospectively evaluated the long-term outcome of 158 consecutive patients who underwent
Aims. The use of trabecular metal (TM) shells supported by augments has provided good mid-term results after
We hypothesised that the use of tantalum (Ta)
acetabular components in
Tapered, fluted, modular, titanium stems have
a long history in Europe and are increasing in popularity in North America.
We have reviewed the results at our institution looking at stem
survival and clinical outcomes. Radiological outcomes and quality
of life assessments have been performed and compared to cylindrical
non-modular cobalt chromium stems. Survival at five years was 94%.
This fell to 85% at ten years due to stem breakage with older designs.
Review of radiology showed maintenance or improvement of bone stock
in 87% of cases. Outcome scores were superior in tapered stems despite
worse pre-operative femoral deficiency. Tapered stems have proved
to be a useful alternative in
We retrospectively reviewed 40 hips in 36 patients who had undergone acetabular reconstruction using a titanium Kerboull-type acetabular reinforcement device with bone allografts between May 2001 and April 2006. Impacted bone allografts were used for the management of American Academy of Orthopaedic Surgeons Type II defects in 17 hips, and bulk bone allografts together with impacted allografts were used for the management of Type III defects in 23 hips. A total of five hips showed radiological failure at a mean follow-up of 6.7 years (4.5 to 9.3), two of which were infected. The mean pre-operative Merle d’Aubigné score was 10 (5 to 15) vs 13.6 (9 to 18) at the latest follow-up. The Kaplan-Meier survival rate at ten years, calculated using radiological failure or revision of the acetabular component for any reason as the endpoint, was 87% (95% confidence interval 76.3 to 97.7). A separate experimental analysis of the mechanical properties of the device and the load-displacement properties of bone grafts showed that a structurally hard allograft resected from femoral heads of patients with osteoarthritis should be preferentially used in any type of defect. If impacted bone allografts were used, a bone graft thickness of <
25 mm was acceptable in Type II defects. This clinical study indicates that
In this retrospective study, we investigated
the results of
Patients who had a
Aims. The purpose of this study was to determine the sensitivity, specificity
and predictive values of previously reported thresholds of proximal
translation and sagittal rotation of cementless acetabular components
used for
The technique of femoral cement-in-cement revision
is well established, but there are no previous series reporting its
use on the acetabular side at the time of