Ritter M A, Meding J B
Center for Hip and Knee Surgery, Mooresville, Indiana 46158.
J Arthroplasty. 1987;2(3):185-9. doi: 10.1016/s0883-5403(87)80036-0.
One hundred thirty-two patients (264 knees) who had simultaneous bilateral total knee arthroplasty and 77 patients who had unilateral procedures were reviewed for statistical comparison of the two procedures with respect to pain, tibial and femoral radiolucency, and all other complications as well as average hospital stay and hospital costs. Both groups had posterior cruciate condylar total knee prostheses. There were no significant differences except for tibial radiolucency, which was significantly higher in the unilateral group. Bilateral total knee arthroplasty as a single procedure does not increase the risk of postoperative or follow-up complications and decreases the probability of complications such as phlebitis and pulmonary emboli, because only one operation is necessary. The average hospital cost and length of stay were lower in the simultaneous group (decreased by 20% and 46%, respectively), compared with twice that of the unilateral group.
对132例（264膝）同时行双侧全膝关节置换术的患者和77例单侧手术患者进行回顾性研究，以对这两种手术在疼痛、胫骨和股骨透亮线以及所有其他并发症、平均住院时间和住院费用方面进行统计学比较。两组均采用后交叉髁型全膝关节假体。除胫骨透亮线外，两组无显著差异，单侧组胫骨透亮线显著更高。双侧全膝关节置换术作为一种单一手术不会增加术后或随访并发症的风险，并且降低了静脉炎和肺栓塞等并发症的发生率，因为仅需进行一次手术。与单侧组的两倍相比，同时手术组的平均住院费用和住院时间更低（分别降低了20%和46%）。
