In two patients in whom the injured leg was not suitable for reconstru
ction using a routine free tissue transfer, a cross-leg free muscle fl
ap was used, i.e. the vessels of a free muscle flap were anastomosed t
o donor vessels on the uninjured leg and the muscle flap used to recon
struct a defect on the opposite leg. Both operations were successful,
with the transferred muscle becoming well vascularized from the recipi
ent bed at the site of injury. In both cases, use of the uninjured leg
to transfer the free flap caused minimal morbidity.