Stem fracture of a collarless, polished, double-taper cemented femoral prosthesis: a case report.
نویسندگان
چکیده
We report a case of stem fracture of a collarless, polished, double-taper cemented stainless steel femoral prosthesis. Scanning electron microscopy showed fatigue striations, indicating failure by fatigue. This case study highlights that stem fracture can still occur with modern implants. Size 0 CPT stem should be avoided in patients with high body mass index. To our knowledge this is the first case report of a CPT stem fracture used for primary total hip replacement.
منابع مشابه
Revision total hip replacement using cemented collarless double-taper femoral components.
We investigated 219 revisions of total hip replacement (THR) in 211 patients using a collarless double-taper cemented femoral component. The mean age of the patients was 72 years (30 to 90). The 137 long and 82 standard length stems were analysed separately. The mean follow-up was six years (2 to 18), and no patient was lost to follow-up. Survival of the long stems to re-revision for aseptic lo...
متن کاملSubstantially higher prevalence of postoperative periprosthetic fractures in octogenarians with hip fractures operated with a cemented, polished tapered stem rather than an anatomic stem
Background and purpose - Recent studies have demonstrated a high incidence of postoperative periprosthetic femoral fracture (PPF) in elderly patients treated with 2 commonly used cemented, polished tapered stems. We compared the prevalence and incidence rate of PPF in a consecutive cohort of octagenerians with femoral neck fractures (FNFs) treated with either a collarless, polished tapered (CPT...
متن کاملRandomised controlled trial comparing early migration of two collarless polished cemented stems using radiostereometric analysis.
This was a safety study where the hypothesis was that the newer-design CPCS femoral stem would demonstrate similar early clinical results and micromovement to the well-established Exeter stem. Both are collarless, tapered, polished cemented stems, the only difference being a slight lateral to medial taper with the CPCS stem. A total of 34 patients were enrolled in a single-blinded randomised co...
متن کاملDislocation of a polished femoral stem following a cemented total hip arthroplasty: a report of 2 cases.
We report 2 cases of hip dislocation after a total hip arthroplasty, which could not be successfully reduced by closed method. Post-manipulation radiographs revealed proximal migration of the prosthesis in both cases, which required open reduction. The pathogenesis and treatment of this hip dislocation is discussed.
متن کاملThe influence of cement thickness on stem subsidence and cement creep in a collarless polished tapered stem
OBJECTIVES Favourable results for collarless polished tapered stems have been reported, and cement creep due to taper slip may be a contributing factor. However, the ideal cement thickness around polished stems remains unknown. We investigated the influence of cement thickness on stem subsidence and cement creep. METHODS We cemented six collarless polished tapered (CPT) stems (two stems each ...
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ورودعنوان ژورنال:
- Acta orthopaedica Belgica
دوره 74 5 شماره
صفحات -
تاریخ انتشار 2008