Total hip arthroplasty with insertion of the acetabular component without cement in hips with total @entity3029 or marked XXXX .

@entity1 @entity691 @entity571 @entity3946 @entity3061 @entity572 @entity1141 @entity3029
BACKGROUND: End-stage @entity571 secondary to total @entity3029 or severe @entity3946 of the hip (class B or C according to the system of Eftekhar or type 2 or 3 according to the system of Hartofilakidis et al.) in adults presents special problems with regard to reconstruction of the hip. The purpose of the present study was to assess the intermediate-term results associated with the use of a porous ingrowth acetabular component for the treatment of these difficult cases. METHODS: We performed a prospective study of a consecutive series of twenty-one @entity1 (twenty-four hips) who had had a primary total hip arthroplasty with use of a hemispherical acetabular component that was inserted without cement and fixed with screws. No @entity1 was lost to follow-up. Three @entity1 (four hips) died, of causes unrelated to the total hip arthroplasty, before a minimum duration of follow-up of five years. None of these @entity1 had had revision. Of the remaining eighteen @entity1 (twenty hips), fifteen were @entity1 and three were @entity1 . Ten hips had @entity3029 , and ten had severe @entity1141 . RESULTS: After an average duration of follow-up of eighty-three months (range, sixty-four to 102 months), the average Harris hip score was 90 points (range, 68 to 97 points). No @entity1 had revision, loosening, or migration of the acetabular component; pelvic @entity3061 ; or a continuous radiolucent line at the mesh-bone interface of the acetabular component. The average rate of @entity691 wear was 0.08 millimeter per year (range, zero to 0.21 millimeter per year). CONCLUSIONS: The porous ingrowth acetabular component that was used in the present study functioned well at the time of the intermediate-term follow-up of this group of @entity1 who had marked @entity3946 or total @entity572 . The use of this component decreased the need for structural acetabular grafts. This component appears to perform as well as larger components of this design that have been assessed after similar durations of follow-up.
