Hozack W J, Rothman R H, Eng K, Mesa J
Department of Orthopaedic Surgery, Jefferson Medical College, Philadelphia, PA, USA.
Clin Orthop Relat Res. 1996 Dec(333):217-25.
One hundred two patients underwent 105 primary uncemented total hip arthroplasties and were reviewed at a minimum of 5 years after operation (mean, 6.1 years). The components were titanium alloy with a titanium plasma spray coating. The acetabular revision rate was 11.4%. Acetabular cavitary lytic lesions were identified in 25.5% at 5 years. All acetabular revisions were performed for a combination of wear and osteolysis. One femoral revision was performed to facilitate an acetabular revision, but the femoral revision rate for aseptic loosening was 0%. In addition, no femoral components had subsided or were thought to be loose radiographically. Thigh pain was present in 4% at 5 years. Despite the 25.5% incidence of acetabular osteolysis, distal femoral lysis was not seen and only 5% showed focal osteolysis in the trochanteric region proximal to the circumferential porous coating of the femoral component. Component design features were thought to be critical to the excellent performance of the femoral component and to the poor performance of the acetabular component.
102例患者接受了105次初次非骨水泥型全髋关节置换术，并在术后至少5年（平均6.1年）进行了随访。假体组件为带有钛等离子喷涂涂层的钛合金材质。髋臼翻修率为11.4%。5年时，25.5%的患者出现髋臼腔溶解性病变。所有髋臼翻修均是因磨损和骨溶解共同作用而进行的。为便于髋臼翻修进行了1次股骨翻修，但无菌性松动导致的股骨翻修率为0%。此外，影像学检查显示，没有股骨组件发生下沉或被认为松动。5年时，4%的患者出现大腿疼痛。尽管髋臼骨溶解发生率为25.5%，但未发现股骨远端溶解，仅5%的患者在股骨组件圆周多孔涂层近端的转子区域出现局灶性骨溶解。假体组件的设计特点被认为对股骨组件的优异性能和髋臼组件的不良性能至关重要。
