Objective:To observe clinical effect and influencing factor of total knee arthroplasty (TKA) for the treatment of stiff knee.Methods:From January 2010 to October 2014,20 patients (25 knees) with stiff knee were treated with TKA.Among them,including 2 males (3 knees) and 18 females (22 knees),aged from 55 to 78 years old with an average of (64.5± 4.9) years old,the courses of disease ranged from 5 to 21 years with an average 8.3 years.Preoperative and postoperative HSS (hospital for special surgery knee score) score,activity range and complications were observed and compared.Results:All patients were followed up from 12 to 69 months with an average of 35.3 months.Ten patients occurred complications after operation.HSS score was improved from 32.36±12.31 preoperatively to 80.70±18.52 postoperatively,and had statistical difference between two groups;7 knees obtained excellent results,15 knees good and 3 knees moderate.Activity range was improved from (39.4±5.3)°preoperatively to (92.5 ±11.2)° at the latest follow up.Conclusion:Total knee arthroplasty for stiffness knees is feasible and could obtain satisfied activity range and function.%目的:观察人工全膝关节置换术治疗僵硬膝关节的临床效果及其影响因素.方法:选取2010年1月至2014年10月采用人工全膝关节置换术治疗的20例(25膝)僵硬膝关节患者,其中男2例(3膝),女18例(22膝);年龄55～78岁,平均(64.5±4.9)岁;病程5～21年,平均8.3年.观察并比较手术前后HSS评分、并发症发生情况及关节活动范围(ROM).结果:20例患者获得随访,时间12～69个月,平均35.3个月.术后10例患者出现并发症.HSS评分由术前的32.36±12.31提高至术后的80.70±18.52,两者比较差异有统计学意义.本组优7膝,良15膝,可3膝.膝关节ROM由术前的(39.4±5.3)°提高至末次随访时的(92.5±11.2)°.结论:僵硬膝关节行人工膝关节置换术是可行的,术后可获得满意的膝关节活动范围及功能.
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