A collarless cobalt-chrome femoral component in uncemented total hip arthroplasty. Five- to eight-year follow-up

1992 ◽  
Vol 74-B (6) ◽  
pp. 814-821 ◽  
Author(s):  
VD Pellegrini ◽  
SS Hughes ◽  
CM Evarts
Keyword(s):  
Total Hip Arthroplasty ◽  
Femoral Component ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Uncemented Total Hip Arthroplasty ◽  
Cobalt Chrome

scholarly journals Second-generation uncemented total hip arthroplasty: a minimum 20-year follow-up

2021 ◽  
Vol 2 (1) ◽  
pp. 33-39
Author(s):  
Jeffrey R. McLaughlin ◽  
Kyla R. Lee ◽  
Mary Ann Johnson
Keyword(s):  
Total Hip Arthroplasty ◽  
Aseptic Loosening ◽  
Femoral Component ◽  
Acetabular Component ◽  
Hip Arthroplasty ◽  
Second Generation ◽  
Total Hip ◽  
Uncemented Total Hip Arthroplasty ◽  
Acetabular Components

Aims We present the clinical and radiological results at a minimum follow-up of 20 years using a second-generation uncemented total hip arthroplasty (THA). These results are compared to our previously published results using a first-generation hip arthroplasty followed for 20 years. Methods A total of 62 uncemented THAs in 60 patients were performed between 1993 and 1994. The titanium femoral component used in all cases was a Taperloc with a reduced distal stem. The acetabular component was a fully porous coated threaded hemispheric titanium shell (T-Tap ST). The outcome of every femoral and acetabular component with regard to retention or revision was determined for all 62 THAs. Complete clinical follow-up at a minimum of 20 years was obtained on every living patient. Radiological follow-up was obtained on all but one. Results Two femoral components (3.2%) required revision. One stem was revised secondary to a periprosthetic fracture one year postoperatively and one was revised for late sepsis. No femoral component was revised for aseptic loosening. Six acetabular components had required revision, five for aseptic loosening. One additional acetabular component was revised for sepsis. Radiologically, all femoral components remained well fixed. One acetabular was judged loose by radiological criteria. The mean Harris Hip Score improved from 46 points (30 to 67) preoperatively to 89 points (78 to 100) at final follow-up. With revision for aseptic loosening as the endpoint, survival of the acetabular component was 95% (95% confidence interval (CI) 90 to 98) at 25 years. Femoral component survival was 100%. Conclusion The most significant finding of this report was the low prevalence of aseptic loosening and revision of the femoral component at a mean follow-up of 22 years. A second important finding was the survival of over 90% of the hemispheric threaded ring acetabular components. While these shells remain controversial, in this series they performed well. Cite this article: Bone Jt Open 2021;2(1):33–39.

Outcomes and survivorship after conversion of failed hip hemiarthroplasty to total hip arthroplasty

2019 ◽  
pp. 112070001989142 ◽  
Author(s):  
Nana O Sarpong ◽  
Matthew J Grosso ◽  
Akshay Lakra ◽  
Carl L Herndon ◽  
Emma Jennings ◽  
...  
Keyword(s):  
Postoperative Complications ◽  
Total Hip Arthroplasty ◽  
Femoral Component ◽  
Hip Arthroplasty ◽  
Revision Surgery ◽  
Complication Rates ◽  
Conversion Surgery ◽  
Total Hip ◽  
Estimated Blood Loss

Background: Arthroplasty is the treatment of choice for elderly patients with displaced femoral neck fractures. When compared to total hip arthroplasty (THA), higher revision rates have been reported for hemiarthroplasty (HA). Conversion of failed HA to THA can be complex, especially in the elderly population at risk for revision surgery complications. We report a single institution’s experience with conversion of failed HA to THA at mid-term follow-up. Methods: We identified patients converted from failed HA to THA from 2006 to 2016. Clinical data including indication for index and conversion surgery, maintenance or revision of femoral component during conversion, operative time, estimated blood loss, postoperative complications, and need for revision surgery were collected. Descriptive statistics were analysed in SPSS. Results: The cohort included 21 men and 39 women (mean age of 74.5 years). The mean follow-up after conversion HA to THA was 2.8 years. During conversion surgery, the femoral component was revised in 75.0% and retained in 25.0% of cases. After conversion HA to THA, the rate of major complications and re-revision at 2 years was 11.7% and 10.0%, respectively. Femoral revision versus retention did not affect complication rates (11.1% vs. 6.7%; p = 0.31) or re-revision rates (8.9% vs. 13.3%; p = 1.0). Conclusions: In this high-risk population, mid-term follow-up demonstrated tolerable complication and re-revision rates, the majority of which were for instability. We observed high rates of femoral component revision during conversion THA, although this did not increase the likelihood of postoperative complications or need for future surgery.

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