The Incidence of Fracture in Total Hip Replacement Femoral Components

1978 ◽  
Vol 7 (2) ◽  
pp. 107-110 ◽  
Author(s):  
H. S. Dobbs

The paper reports on the incidence of fracture of the femoral component of total hip replacements in patients at the Royal National Orthopaedic Hospital over the period 1963-1976. The average incidence of fracture was approximately 0.2 per cent per year for air melt air cast cobalt chrome components. For vacuum melt vacuum cast components there were no fractures, but because of the small number of insertions with a long follow-up period, this result could have been fortuitous. There was a suggestion that the fracture rate increased with time, but even 0.2 per cent is considered too high.

2012 ◽  
Vol 24 (06) ◽  
pp. 549-555 ◽  
Author(s):  
Ching-Ho Wu ◽  
Cheng-Chung Lin ◽  
Tung-Wu Lu ◽  
Lih-Seng Yeh

Total hip replacement (THR) has been one of the main choices in treating dysplasia and other disabling conditions of the coxofemoral joint of large-breed dogs. Quantitative data of the three-dimensional (3D) morphology of the native normal acetabulum will be helpful for better design and implantation of prosthetic components. However, 3D orientation and morphological parameters of the native acetabulum in large-breed dogs are rarely reported. The purposes of the study were to measure the values of the 3D morphological parameters of the native acetabulum in Labrador Retriever dogs, namely acetabular orientation in relation to the pelvis, as well as the radius, angle between ventral and dorsal rims, and the distance from the center to the dorsal rim of the acetabulum using a 3D CT-derived model. The data will be useful for developing a more accurate guideline for improving current THR designs and for more accurate placement of the acetabulum component during THR surgery.


2016 ◽  
Vol 27 (2) ◽  
pp. 198-204
Author(s):  
Cesare Faldini ◽  
Marcello De Fine ◽  
Alberto Di Martino ◽  
Daniele Fabbri ◽  
Raffaele Borghi ◽  
...  

Introduction The outcomes of total hip replacement in patients suffering from residual poliomyelitis are poorly covered in the literature. In this retrospective study we posed the question of whether total hip replacement performed for degenerative hip diseases in limbs with residual poliomyelitis could determine satisfactory mid-term clinical and radiographic results, with a reasonable complication rate. Methods A retrospective study was carried out to assess the results of 14 total hip replacements performed on 14 patients with residual poliomyelitis on the involved limb from June 1999 to September 2011. Average age at the time of surgery was 51 years (range 26-66 years). Mean duration of follow-up was 92 months (range 52-156 months). Surgery was performed through a direct lateral approach on all hips. All but one were cementless implants. Results 2 implants failed, 1 due to traumatic acetabular fracture 6 days after surgery, and 1 due to aseptic cup loosening 13 years after surgery. Surgery was uneventful in all patients except 1 (7%), who experienced a transient sensory sciatic nerve palsy. At the latest follow up Harris Hip Score was 83.3 (range 72-91) with a marked improvement when compared to preoperative score (average 52, range 32-78). No dislocations had occurred. Conclusions Total hip replacement can be considered a feasible option for hip osteoarthritis in patients with limbs affected by residual poliomyelitis. Longer follow-up studies are needed to assess the effectiveness of unconstrained total hip replacement in polio patients.


2013 ◽  
Vol 95 (3) ◽  
pp. 88-91
Author(s):  
J Lloyd ◽  
I Starks ◽  
T Wainwright ◽  
R Middleton

Metal-on-metal (MoM) hip resurfacings (HRs) and large head total hip replacements (LHTHRs) were perceived by many as a surgical revolution, with clear advantages over the traditional metal-on-polyethylene total hip replacement (THR). This is especially the case for younger, active individuals in whom conventional THR has been associated with higher rates of aseptic loosening. In addition to less bearing surface wear, frequently cited advantages for HR include the preservation of femoral bone stock, lower dislocation rates, and superior function and activity scores.


2012 ◽  
Vol 94 (3) ◽  
pp. 193-198 ◽  
Author(s):  
GH Stafford ◽  
SC Charman ◽  
MJ Borroff ◽  
C Newell ◽  
JK Tucker

INTRODUCTION This paper describes, for the first time, the outcomes of patients undergoing total hip replacement for acute fractured neck of femur (#NOF) as recorded by the National Joint Registry of England and Wales (NJR). METHODS In the NJR we identified 1,302 of 157,232 Hospital Episode Statistics linked patients who had been recorded as having a total hip replacement for acute #NOF between April 2003 and November 2008. RESULTS The revision rate at five years for fully uncemented components was 4.1% (95% confidence interval [Cl]: 2.2-7.3%), for hybrid it was 2.2% (95% Cl: 0.9%-5.3%) and for fully cemented components 0.9% (95% Cl: 0.4-2.0%). Five-year revision rates were increased for those whose operations were performed via a posterior versus a lateral approach. The Kaplan-Meier estimate of 30-day mortality was 1.4% (95% Cl: 1.0-2.4%), which is over double the 30-day mortality rate for total hip replacement identified by the Office for National Statistics. The mean length of stay was also increased for those undergoing total hip replacements for #NOF compared with non-emergency indications. CONCLUSIONS Our data suggest that total hip replacements for acute #NOF give comparable results with total hip replacements for other indications.


2019 ◽  
Vol 4 (6) ◽  
pp. 423-429 ◽  
Author(s):  
Bart G. Pijls ◽  
Jennifer M. T. A. Meessen ◽  
Keith Tucker ◽  
Susanna Stea ◽  
Liza Steenbergen ◽  
...  

The purpose of this paper is to determine the prevalence of metal-on-metal (MoM) total hip replacement (THR) in European registries, to assess the incidence of revision surgery and to describe the national follow-up guidelines for patients with MoM THR including resurfacings. Eleven registries of the Network of Orthopaedic Registries of Europe (NORE) participated totalling 54 434 resurfacings and 58 498 large stemmed MoM THRs. The resurfacings and stemmed large head MoM had higher pooled revision rates at five years than the standard total hip arthroplasties (THA): 6.0%, 95% confidence interval (CI) 5.3 to 6.8 for resurfacings; 6.9%, 95% CI 4.4 to 9.4 for stemmed large head MoM; and 3.0%, 95% CI 2.5 to 3.6 for conventional THA. The resurfacings and stemmed large head MoM had higher pooled revision rates at ten years than the standard THAs: 12.1%, 95% CI 11.0 to 13.3 for resurfacings; 15.5%, 95% CI 9.0 to 22 for stemmed large head MoM; and 5.1%, 95% CI 3.8 to 6.4 for conventional THA. Although every national registry reports slightly different protocols for follow-up, these mostly consist of annual assessments of cobalt and chromium levels in blood and MRI (MARS) imaging. Cite this article: EFORT Open Rev 2019;4 DOI: 10.1302/2058-5241.4.180078


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