This study aimed to examine the clinical and radiographic outcomes of primary total knee arthroplasy（TKA） with use of Nex Gen#174; Legacy#174; Constrained Condylar Knee（CCK） prosthesis for severe knee deformity. C...This study aimed to examine the clinical and radiographic outcomes of primary total knee arthroplasy（TKA） with use of Nex Gen#174; Legacy#174; Constrained Condylar Knee（CCK） prosthesis for severe knee deformity. Clinical data of 46 patients（48 knees in total, aged 61 years on average） with severe knee deformity who underwent TKA with Nex Gen#174; Legacy#174; CCK prosthesis between December 2007 and February 2012 were retrospectively analyzed. There were 34 knees with severe valgus with incompetent medial collateral ligament, 11 knees with severe flexion contracture with inability to achieve knee balancing in flexion and extension by posterior soft tissue release, 2 knees with Charcot arthritis with severe varus and bone loss, and 1 with traumatic osteoarthritis with severe varus and ligamentous instability. The mean duration of follow-up was 71 months（range 40–90 months）. The New Knee Society scoring（NKSS） system and the Hospital for Special Surgery（HSS） score were used to evaluate the functional and clinical outcomes. Visual Analogue Scale（VAS） was used for pain measurement and Knee Society criteria for evaluation of radiological images. The results showed that, in the total 48 knees, 1 case of loosening due to short-stem tibial component at 3 months post-operatively underwent revision. The 6-year prosthesis survival rate in this cohort was 97.9%. There was no component infection occurring within 6 years. Significant post-operative improvements were found in NKSS and HSS scores. Patient satisfaction was significantly increased. Pain score was decreased significantly. Total functional score was improved from 31.46±11.43 to 86.42±8.87, range of motion（ROM） from 42.42°±23.57° to 95.31°±23.45° and the flexion contracture from 5.31°±7.87° to 0.92°±1.80°. Preoperative radiographic study showed excessive valgus（≥7°） in 37 knees, and varus deformity in 3 knees. Post-operative femorotibial alignment was valgus 3.88°±1.76° in 48 knees. Antero/posterior（A/P） vie展开更多
目的探讨应用髁限制性假体治疗重度膝关节外翻畸形的手术方法及临床效果。方法对2009年1月至2014年12月采用髁限制性假体进行全膝关节置换治疗的重度膝关节外翻畸形患者进行回顾性分析,共12例患者,15膝。骨性关节炎3例（3膝）,类风湿关...目的探讨应用髁限制性假体治疗重度膝关节外翻畸形的手术方法及临床效果。方法对2009年1月至2014年12月采用髁限制性假体进行全膝关节置换治疗的重度膝关节外翻畸形患者进行回顾性分析,共12例患者,15膝。骨性关节炎3例（3膝）,类风湿关节炎9（12膝）例。记录患者一般情况,并比较术前、术后股胫角、VAS评分、膝关节活动度（ROM）、美国特种外科医院（Hospital for Special Surgery,HSS）膝关节评分以及骨关节炎指数（WOWAC）评分变化,评价术后疗效。结果全部病例术后随访6月~60月,平均32月。术后所有患者未发生感染、松动及深静脉血栓形成、关节不稳等并发症。手术前、后各项指标的差异有统计学意义。结论对重度膝关节外翻畸形韧带难以平衡患者进行全膝关节置换,可采用髁限制性假体植入,能较好地矫正外翻畸形,术后疗效满意。展开更多
基金supported by a grant from the National Nature Science Foundation of China(No.81371973)
文摘This study aimed to examine the clinical and radiographic outcomes of primary total knee arthroplasy（TKA） with use of Nex Gen#174; Legacy#174; Constrained Condylar Knee（CCK） prosthesis for severe knee deformity. Clinical data of 46 patients（48 knees in total, aged 61 years on average） with severe knee deformity who underwent TKA with Nex Gen#174; Legacy#174; CCK prosthesis between December 2007 and February 2012 were retrospectively analyzed. There were 34 knees with severe valgus with incompetent medial collateral ligament, 11 knees with severe flexion contracture with inability to achieve knee balancing in flexion and extension by posterior soft tissue release, 2 knees with Charcot arthritis with severe varus and bone loss, and 1 with traumatic osteoarthritis with severe varus and ligamentous instability. The mean duration of follow-up was 71 months（range 40–90 months）. The New Knee Society scoring（NKSS） system and the Hospital for Special Surgery（HSS） score were used to evaluate the functional and clinical outcomes. Visual Analogue Scale（VAS） was used for pain measurement and Knee Society criteria for evaluation of radiological images. The results showed that, in the total 48 knees, 1 case of loosening due to short-stem tibial component at 3 months post-operatively underwent revision. The 6-year prosthesis survival rate in this cohort was 97.9%. There was no component infection occurring within 6 years. Significant post-operative improvements were found in NKSS and HSS scores. Patient satisfaction was significantly increased. Pain score was decreased significantly. Total functional score was improved from 31.46±11.43 to 86.42±8.87, range of motion（ROM） from 42.42°±23.57° to 95.31°±23.45° and the flexion contracture from 5.31°±7.87° to 0.92°±1.80°. Preoperative radiographic study showed excessive valgus（≥7°） in 37 knees, and varus deformity in 3 knees. Post-operative femorotibial alignment was valgus 3.88°±1.76° in 48 knees. Antero/posterior（A/P） vie
文摘目的探讨应用髁限制性假体治疗重度膝关节外翻畸形的手术方法及临床效果。方法对2009年1月至2014年12月采用髁限制性假体进行全膝关节置换治疗的重度膝关节外翻畸形患者进行回顾性分析,共12例患者,15膝。骨性关节炎3例（3膝）,类风湿关节炎9（12膝）例。记录患者一般情况,并比较术前、术后股胫角、VAS评分、膝关节活动度（ROM）、美国特种外科医院（Hospital for Special Surgery,HSS）膝关节评分以及骨关节炎指数（WOWAC）评分变化,评价术后疗效。结果全部病例术后随访6月~60月,平均32月。术后所有患者未发生感染、松动及深静脉血栓形成、关节不稳等并发症。手术前、后各项指标的差异有统计学意义。结论对重度膝关节外翻畸形韧带难以平衡患者进行全膝关节置换,可采用髁限制性假体植入,能较好地矫正外翻畸形,术后疗效满意。
