Harwin S F, Stein A J, Stern R E, Kulick R G
Department of Orthopaedic Surgery, Albert Einstein College of Medicine, New York, New York.
J Arthroplasty. 1993 Apr;8(2):113-6. doi: 10.1016/s0883-5403(06)80048-3.
Heterotopic ossification is a rare complication following primary total knee arthroplasty and may be symptomatic if massive enough. The authors retrospectively reviewed 158 primary total knee arthroplasties from 1985 to 1989 and found 6 cases (3.8%) of heterotopic ossification. Patients were graded before and after surgery according to the Hospital for Special Surgery total knee arthroplasty score and their histories were reviewed for the presence of recognized risk factors for heterotopic ossification and whether a manipulation under anesthesia was performed. This report describes the incidence of, appearance of, and clinical risk factors for heterotopic ossification following primary total knee arthroplasty in this series. A radiographic grading system is proposed.
异位骨化是初次全膝关节置换术后一种罕见的并发症，如果骨化量足够大可能会出现症状。作者回顾性分析了1985年至1989年期间的158例初次全膝关节置换术病例，发现6例（3.8%）发生了异位骨化。术前和术后根据特种外科医院全膝关节置换术评分对患者进行分级，并回顾患者病史以确定是否存在已知的异位骨化风险因素以及是否进行了麻醉下手法操作。本报告描述了该系列初次全膝关节置换术后异位骨化的发生率、表现及临床风险因素。并提出了一种影像学分级系统。
