Fingertip replantations: importance of venous anastomosis and the clinical results

Takaaki Hasuo, Genzaburo Nishi, Daiji Tsuchiya, Takanobu Otsuka
Hand Surgery 2009, 14 (1): 1-6
Overall survival rate for 143 digits with complete amputation of the distal phalanx was 78%. Replanted digits that underwent venous anastomosis showed a very high survival rate of 93%. Loss of the distal interphalangeal joint function in subzone IV was significantly inferior to that in subzones II and III. Protective sensation was achieved in 96% of replanted digits. Sensory recovery in the absence of nerve repair was significantly worse for avulsion injury than for crush injury. Nail deformity tended to be increased for replanted digits in subzone III or with crush-type injury. Successful venous anastomosis appears to offer the best way to promote survival of replanted digits. If venous anastomosis is infeasible, a replanted digit can survive with any methods for venous drainage in subzones II and III, but does not survive in subzone IV. To minimise nail deformity, repair of the germinal matrix is necessary.

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