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JOURNAL ARTICLE

Treatment of periprosthetic femoral fractures following total hip arthroplasty with femoral component revision

Bryan D Springer, Daniel J Berry, David G Lewallen
Journal of Bone and Joint Surgery. American Volume 2003, 85 (11): 2156-62
14630846

BACKGROUND: Revision total hip arthroplasty is indicated for most periprosthetic fractures that occur around the stem of the femoral implant. The purpose of the present study was to assess the results and complications of revision total hip arthroplasty for the treatment of periprosthetic femoral fractures.

METHODS: We evaluated 118 hips in 116 patients who underwent revision total hip arthroplasty because of an acute Vancouver type-B periprosthetic femoral fracture. The femoral implant used for the revision was a cemented stem in forty-two hips, a proximally porous-coated uncemented stem in twenty-eight, an extensively porous-coated stem in thirty, and an allograft-prosthesis composite or tumor prosthesis in eighteen. The mean duration of follow-up was 5.4 years.

RESULTS: Kaplan-Meier analysis demonstrated that the probability of survival was 90% at five years and 79.2% at ten years with revision or removal of the femoral implant for any reason as the end point. Sixteen femoral components were rerevised: ten were rerevised because of loosening; three, because of loosening in association with a fracture nonunion; two, because of recurrent dislocation; and one, because of a new periprosthetic fracture. Additionally, six femoral implants were resected because of deep infection (five) or prosthetic loosening (one). Radiographs of the ninety-six hips with a surviving implant showed that twenty-one had evidence of loosening of the femoral implant, four had a nonunion of the femoral fracture, and two had both a nonunion and loosening of the femoral implant.

CONCLUSIONS: Revision total hip arthroplasty for the treatment of a periprosthetic fracture around the stem of the femoral implant successfully restored function for most patients. The greatest long-term problems were prosthetic loosening and fracture nonunion. Better results were seen when an uncemented, extensively porous-coated stem was used.

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