Abstract
We analyzed 122 cases of replantation following complete amputation of the thumb and correlated various factors with rates of survival. The overall survival rate of thumb replantation was 71%. The type of amputation markedly affected survival rate. In minimally damaged amputations, the time period from injury to the start of surgery was the only significant factor related to survival. Other factors such as age, smoking history, amputation level, the number of vessels reconstructed and the method used did not relate statistically to survival. With avulsion amputations, the survival rate of replantation at and proximal to the MP joint was significantly better than replantation distal to the MP joint. 20 thumbs required re-exploration for vascular compromise; nine of these were salvaged (45%).
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