Objective to provide anatomical basis for the operation of the transposition of partial tendon of dorsum of hand to repair metacarpophalangeal joint dislocation.

Conclusion This method can effectively solve the problem of venous stagnation of island flaps in hand or forearm after its transposition.

Transposition of simple or composite forearm island flaps with a radial vascular pedicle was performed in repairing tissue defects of the hand and reconstruction of the thumb in 16 patients.