Flexor Tendon Injuries of the Upper Extremity

Abstract

Flexor tendon injuries are common after lacerations or penetrating trauma to the palmar surface of the hand. At the time of injury, surgeons should document a detailed examination of the digital cascade and active flexion of FDS and FDP to each finger. Concomitant neurovascular injuries are common. Flexor tendon repair strategy depends on the zone of injury. During flexor tendon repair, core suture strength is related to suture material, caliber of suture, and most importantly the number of sutures crossing repair site. Tendon repairs weaken during the first 3 weeks postoperatively if immobilized, so controlled mobilization postoperatively is key.