Hartford J M, Hunt T, Kaufer H
Division of Orthopaedic Surgery, Department of Surgery, University of Kentucky Medical Center, Lexington, Kentucky 40536, USA.
J Arthroplasty. 2001 Dec;16(8):977-83. doi: 10.1054/arth.2001.27670.
A total of 139 mobile bearing knee arthroplasties in 104 patients were evaluated at a mean follow-up of 7.8 years (range, 5-13 years). There were 80 cemented knees, 50 uncemented, and 9 hybrid (cemented tibia, uncemented femur). Ten knees were revised. Four knees were revised for aseptic loosening of an uncemented tibial component, and 1 knee was revised for loosening of an uncemented femoral component. One knee was revised for a recurrent dislocating bearing, and 1 knee was revised for instability. No mechanical loosening occurred in the cemented components. Three knee arthroplasties were revised for infection. A total of 66 patients (92 knees) were evaluated clinically and radiographically. Radiographic evaluation showed a 27% incidence of radiolucent lines for the femur and a 31% incidence of radiolucent lines for the tibia. No components were considered radiographically loose. The survivorship of mobile bearing knee arthroplasties was 93% at an average follow-up of 7.8 years. Aseptic loosening was statistically higher in uncemented components (P=.0051).
对104例患者的139例活动轴承膝关节置换术进行了评估，平均随访7.8年（范围5 - 13年）。其中有80例骨水泥固定膝关节，50例非骨水泥固定，9例混合固定（胫骨骨水泥固定，股骨非骨水泥固定）。10例膝关节进行了翻修。4例因非骨水泥胫骨部件无菌性松动进行翻修，1例因非骨水泥股骨部件松动进行翻修。1例因活动轴承反复脱位进行翻修，1例因不稳定进行翻修。骨水泥固定部件未发生机械性松动。3例膝关节置换术因感染进行翻修。共对66例患者（92个膝关节）进行了临床和影像学评估。影像学评估显示，股骨出现透亮线的发生率为27%，胫骨为31%。影像学上未发现任何部件松动。活动轴承膝关节置换术在平均7.8年的随访中生存率为93%。非骨水泥部件的无菌性松动在统计学上更高（P = 0.0051）。
