title: Salvage of lower extremities following combined orthopedic and vascular trauma. A predictive salvage index.
abstract: A retrospective review of 676 tibial-fibular fractures and 985 femoral fractures treated over a 71-month period yielded associated major vascular trauma in 12 (1.7%) tibial-fibular fractures and in five (0.5%) femoral fractures. Vascular trauma combined with orthopedic trauma was also identified in four other cases--two disruptions of the pubic symphysis and two dislocations of the knee without fracture. Nine (43%) of the 21 involved limbs were eventually amputated. Limb survival was not related to the temporal relationship of vessel repair to skeletal stabilization; the presence or absence of shock on admission; the presence of associated but repaired venous injury; or the presence of unrelated injuries. Limb survival was related to the interval from injury to arrival in the operating room; the level of arterial injury; and the quantitative degree of muscle, bone, and skin injury. By combining these variables a limb salvage index was established that identified lower extremities likely to require amputation after combined orthopedic and vascular trauma (sensitivity 78%, specificity 100%). Use of this predictive salvage index may prevent the trauma surgeon from attempting to salvage a doomed or useless lower extremity and may thus permit early prosthetic rehabilitation to follow definitive primary amputation.
mesh_terms: D000293:Adolescent; D000328:Adult; D000671:Amputation, Surgical; D001808:Blood Vessels / Q000293:injuries*; D005260:Female; D006801:Humans; D007866:Leg / Q000098:blood supply* / Q000601:surgery; D007869:Leg Injuries / Q000601:surgery*; D008297:Male; D008875:Middle Aged