固定平台与旋转平台假体全膝关节置换术后早期疗效的回顾性观察

Retrospective observation on early clinical efficacy of fixed-bearing versus rotation-bearing total knee arthroplasty

目的回顾性观察PFC固定平台假体和RP旋转平台假体2种人工膝关节置换系统治疗成人膝关节骨性关节炎术后早期疗效。方法54例（58膝）膝关节骨性关节炎行全膝关节置换术（TKA），其中固定平台组28例（30膝）；旋转平台组26例（28膝）。结果所有患者均获3～54个月随访，术后切口愈合良好，均能直立行走。末次随访时固定平台组、旋转平台组膝关节评分（HSS）与膝关节活动度（ROM）分别为（87．20±8．12）、（86．34±6．39）分和（106．73±6．24）、（107．12±4．58），与术前比较差异有统计学意义（P（0．05），但组间比较差异无统计学意义（P〉O．05）。结论PFC与RP假体系统全膝关节置换术是治疗成人晚期膝关节骨性关节炎的有效方法，早期假体生存率较满意，术后两者对膝关节功能改善差异无统计学意义。长期的假体生存率需要进一步研究观察。

Objective To retrospective observation on early clinical effieaey of PFC fixed-bearing versus RP rotation-bearing total knee arthmplasty in the treatment of osteoarthritis in adults. Methods Fifty-four patients （58 knees） with total knee arthmplasty （TKA） for osteoarthritis. There were 28 cases （30 knees） in fixed-bearing group and 26 eases （28 knees） in rotation-bearing group. Results The duration of follow-up ranged from 3 to 54 months. The incision healed smoothly. All the patients could walk independently after the surgery. The average HSS score in ftxed-bearing group was （87.20＋8.12） and rotation-bearing group was （86.34＋6.39） in final follow-up. The average ROM in iVtxed-bearing group was （106.73：1：6.24）~ and rotation-bearing group was （107.12＋4.58）o in final follow-up.The difference was statistically significant in HSS semre and ROM compared with preoperative （P 〈0.05 ）, but not statistically significant between two groups （P 〉0.05）. Conclusion PFC fixed-bearing versus PtP rotation-bearing in total knee arthroplasty are the effective methods in the treatment of osteoarthritis in adults. PFC and RP both have satisfactory early prosthesis survivorship and have no significant difference in postoperative knee function improvement. Long-term survivorship needs further research.