Comparison Of Unilateral With Simutaneous Bilateteral Total Knee Arthroplasty In Terms Of Postoperrative Complications

Objective:To compare the rates of postoperative complications in patients undergoing simultaneous primary bilateral total knee arthroplasty (SBTKA) or unilateml total knee arthmplasty(UTKA). Methods:From November,2006 to November,2009,178 patients underwent UTKA (UTKA group) and 161 patients underwent SBTKA(SBTKA group)。The UTKA group included 50 male patients and 128 female patients, with the mean age of 64.24(ranged from 26 to 81 years).The preoperative Knee Society Score (KSS) score was 34.04±13.28.150 patients had osteoarthritis,18 patients had rheumatic arthritis,4 patients had Traumatic arthritis,4 pigmented villonodular synovitis(PVNS) and 3 patients had knee tuberculosis.90 patients with a preoperative combined 1 or a variety of systemic medical disease.The BTKA group included 32 male patients and 129 female patients, with the mean age of 65.28(ranged from 34 to 80 years).The preoperative Knee Society Score (KSS) was 33.39±11.12.143 patients had osteoarthritis,18 patients had rheumatic arthritis,89 patients with a preoperative combined 1 or a variety of systemic medical disease. The rates of postoperative complications were compared. And to follow up the effectiveness by adopting American Knee Socitety Score (KSS). Results:In UTKA group,2 patients with poor wound healing; 2 deep infection of the knee; 2 noninfectious pain; 1 lacunar infarct and with cardiac failure; 1 vascular embolism; 1 peroneal nerver injury; 1 joint adhesion.In BTKA group, there were 2 patients with poor wound healing; 2 noninfectious pain; lacunar infarct; 1 vascular embolism and with cardiac failure; 2 mobile bearing dislocation; There is not pulmonary embolism or death occurred in both groups.There were no statistically significant differences in the general data between two groups (P> 0.05).The blood transfusion needs were significantly higher in the SBTKA group. No significant differences were found with regard to deep venous thmmbosis, pulmonaryembolism, pulmonary embolism, gastrointestinal complications, superficial wound complications and infenction rate in two groups. Postoperative KSS score in UTKA group is 92.58±10.62, in BTKA group is 91.93±11.10. Conclusions: BTKA is not the independent risk factor in postoperative complications. Fully prepared before surgery and patients tolerated surgery assessment,better surgical techniques, improved postoperative monitoring and support treatment,reasonable rehabilitation, can reduce BTKA surgery complications Rate.But for preoperative patients with multiple medical illnesses, surgery should be carefully evaluated before the tolerance of operation evaluated.