Dendrinos G K, Mavropoulou A, Polyzoides A J
Department of Orthopaedic Surgery, Solihull Hospital, United Kingdom.
Acta Orthop Belg. 1991;57(3):274-84.
This paper reports the failure rate and survival of old-generation total knee replacements (TKR). Revision operations are also discussed. During a 5-year period from 1974 to 1979, 117 patients, 165 knees, were operated. The prostheses used were Geomedic in 75 knees and Attenborough in 90 knees. Revision was performed in 46 knees (28%). Six knees (4%) were infected. The survival time from implantation averaged 4.3 years, and the followup was 7 to 13 years for the Geomedic (mean 9.7) and 6 to 9 years for the Attenborough (mean 6.7). Mechanical problems were related to loosening of the tibial and femoral components, and revision was required for this reason. The success rate of the revision was 50% at 5.4 years; the less invasive the primary operation, the simpler the revision. Constrained prostheses must be used when ligaments are not intact. In case of infection, removal of the implants is not always necessary.
本文报告了老一代全膝关节置换术（TKR）的失败率和生存率。还讨论了翻修手术。在1974年至1979年的5年期间，对117例患者的165个膝关节进行了手术。使用的假体中，75个膝关节用的是Geomedic，90个膝关节用的是Attenborough。46个膝关节（28%）进行了翻修。6个膝关节（4%）发生感染。植入后的平均生存时间为4.3年，Geomedic假体的随访时间为7至13年（平均9.7年），Attenborough假体的随访时间为6至9年（平均6.7年）。机械问题与胫骨和股骨部件的松动有关，因此需要进行翻修。翻修手术在5.4年时的成功率为50%；初次手术的创伤越小，翻修就越简单。当韧带不完整时必须使用限制性假体。如果发生感染，并不总是需要取出植入物。
