Kumar V P, Satku K
Department of Orthopaedic Surgery, National University Hospital, Singapore.
Singapore Med J. 1993 Dec;34(6):551-2.
Five patients with isolated rupture of the posterior cruciate injury following road traffic accidents were noted to demonstrate a "positive Lachman test". Stress radiographs while performing the Lachman manoeuvre confirmed that all 5 patients had only a posterior cruciate injury. Attention is drawn to the "false positive Lachman test" that indicates a posterior cruciate injury. The presence of a sag sign also establishes a diagnosis of posterior cruciate rupture and a positive Lachman test in this situation must be interpreted with caution.
五名在道路交通事故后出现单纯后交叉韧带损伤断裂的患者被发现表现出“Lachman试验阳性”。在进行Lachman手法操作时的应力X线片证实，所有5名患者仅存在后交叉韧带损伤。需注意提示后交叉韧带损伤的“Lachman试验假阳性”。凹陷征的存在也可确立后交叉韧带断裂的诊断，在这种情况下，Lachman试验阳性必须谨慎解读。
