Femoral component revision with use of impaction bone-grafting and a cemented polished stem. Surgical technique.
until further notice
SourceJournal of Bone and Joint Surgery. American Volume, 88-a, 1 part 2, (2006), pp. 259-74
Article / Letter to editor
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Journal of Bone and Joint Surgery. American Volume
iss. 1 part 2
SubjectNCEBP 10: Human Movement & Fatigue; NCMLS 3: Tissue engineering and pathology; UMCN 4.3: Tissue engineering and reconstructive surgery
BACKGROUND: The purpose of this study was to evaluate the clinical and radiographic outcomes of revision of the femoral component of a hip arthroplasty with use of an impaction bone-grafting technique and a cemented polished stem. METHODS: Thirty-three consecutive femoral reconstructions that were performed between March 1991 and February 1996 with use of the X-change femoral revision system, fresh-frozen morselized allograft, and a cemented polished Exeter stem were followed prospectively. Femoral bone stock defects were classified according to the Endoklinik classification. The average age of the patients at the time of the femoral component revision was sixty-three years. No patient was lost to follow-up, which was performed at a minimum of eight years, but eight patients had died. None of the deaths was related to the surgery. RESULTS: No femoral reconstruction had been rerevised at a mean of 10.4 years postoperatively. There was one unrecognized intraoperative fracture, which healed following nonoperative treatment. There were three postoperative femoral fractures, all through cortical defects at the level of the tip of the prostheses. All fractures healed after plate fixation, and all femoral implants were left in situ. The average subsidence of the stem within the cement mantle was 3 mm; seven stems migrated 5 mm. The average Harris hip score improved from 49 points prior to surgery to 85 points (range, 68 to 100 points) at the time of this review. Subsidence did not affect the Harris hip score. Kaplan-Meier analysis, with an end point of femoral revision for any reason, showed a survival rate of 100% (one-sided 95% confidence interval, 100% to 91.3%). CONCLUSIONS: Femoral revision with use of an impaction bone-grafting technique and a cemented polished stem resulted in an excellent prosthetic survival rate at eight to thirteen years postoperatively. The major problem that occurred was a femoral fracture in four patients.
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