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- W1236708732 abstract "Between 1986 and 1991, 65 cementless hemispherical acetabular cups were implanted in 60 patients in revision surgery. Different designs were used, including PCA (29 cups), Duraloc (14 cups), Harris-Galante (12 cups), and Omnifit (10 cups). The mean age of patients was 54.7 years. The Paprosky types of the acetabular bone defects were type 1, 2 hips; type 2, 38 hips; type 3A, 15 hips; and type 3B, 10 hips. For unrevised hips, the mean follow-up was 8.3 years (range, 6–11 years). Bone allografts were used in 56 hips: Morcellized cancellous graft was used in 42 hips, structural graft for contained defects was used in 7 hips, and structural graft for uncontained defects was used in 7 hips. There were poor clinical results in 14 hips (22%). Re-revision was necessary in 7 hips (10.8%). There was definite radiographic loosening in 18 hips and possible loosening in 4 hips. Screw failure occured in 6 hips, and a radiolucency in 1 or more DeLee-Charnley zones was apparent in 45 hips (69.2%). Moderate or severe graft resorption were found in 4 of the 42 morcellized grafts, in 6 of the 7 structural grafts for uncontained defects, and in all 7 of the 7 structural grafts for contained defects. The best results were obtained in hips with a bone defect of less than 30%. The use of a cementless acetabular cup supplemented with screws is contraindicated in hips with a bone defect greater than 50%. Hip reconstruction using structural bone—graft to stabilize the prosthesis gives the worst results." @default.
- W1236708732 created "2016-06-24" @default.
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- W1236708732 date "1999-06-01" @default.
- W1236708732 modified "2023-10-18" @default.
- W1236708732 title "Porous-coated cementless acetabular cups in revision surgery" @default.
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- W1236708732 doi "https://doi.org/10.1016/s0883-5403(99)90094-3" @default.
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