We previously reported the 5 to 12-year results of total hip arthroplasty with an uncemented acetabular component and an autogenous femoral head graft in 44 consecutive hips with developmental dysplasia. The goal of the present study was to report the implant survival rate, status of bone grafts, and clinical outcomes in 35 of these hips (in 29 patients) followed for a mean of 21.3 years. Functional, radiographic, and survivorship results were examined. Radiographic analysis revealed an average cup inclination angle of 43° and a mean arc of cup coverage by the graft of 30°. The 20-year survivorship free from acetabular revision was 66% (12 acetabular revisions; 8 since our previous report). Of the 12 revisions, 9 were for liner wear and/or osteolysis, one was for a liner fracture, one was for aseptic loosening, and one was for instability. All bone grafts healed to the pelvis. The graft facilitated revision cup placement as no additional structural grafts or metal augments were required. We concluded that an uncemented porous-coated socket used in conjunction with a bulk femoral head autograft provides good long-term fixation and restores bone stock.
Copyright remains with the authors and publisher.
We previously reported the 5 to 12-year results of total hip arthroplasty with an uncemented acetabular component and an autogenous femoral head graft in 44 consecutive hips with developmental dysplasia. The goal of the present study was to report the implant survival rate, status of bone grafts, and clinical outcomes in 35 of these hips (in 29 patients) followed for a mean of 21.3 years. Functional, radiographic, and survivorship results were examined. Radiographic analysis revealed an average cup inclination angle of 43° and a mean arc of cup coverage by the graft of 30°. The 20-year survivorship free from acetabular revision was 66% (12 acetabular revisions; 8 since our previous report). Of the 12 revisions, 9 were for liner wear and/or osteolysis, one was for a liner fracture, one was for aseptic loosening, and one was for instability. All bone grafts healed to the pelvis. The graft facilitated revision cup placement as no additional structural grafts or metal augments were required. We concluded that an uncemented porous-coated socket used in conjunction with a bulk femoral head autograft provides good long-term fixation and restores bone stock.
Copyright remains with the authors and publisher.