Jacobs M A, Hungerford D S, Krackow K A, Lennox D W
Johns Hopkins University School of Medicine, Department of Orthopaedic Surgery, Baltimore, MD 21239.
Clin Orthop Relat Res. 1988 Jan(226):78-85.
Twenty-four patients with 28 failed total knee arthroplasties replaced with porous-coated anatomic (PCA) primary or revision components were studied over a two- to four-year period. Overall, there were 68% good and excellent results and three failures. When evaluated according to mode of failure, 83% of the patients who had a definable mechanical problem achieved good or excellent results. Patients who had revision operations for incapacitating pain or in whom no clearly definable problem could be ascertained before operation were not significantly improved. Complications that led to poor results were deep sepsis, wound necrosis, and extensor mechanism abnormalities.
对24例接受了28次全膝关节置换术失败后采用多孔涂层解剖型（PCA）初次或翻修假体置换的患者进行了为期两到四年的研究。总体而言，68%的结果为良好或优秀，有3例失败。根据失败模式评估，有明确机械问题的患者中83%取得了良好或优秀的结果。因疼痛无法忍受而接受翻修手术的患者或术前未明确可确定问题的患者改善不明显。导致结果不佳的并发症有深部脓毒症、伤口坏死和伸肌机制异常。
