In extensor zone I injuries, what is the key rehabilitation goal?

Study for the NBCOT Hand Injuries and Intervention Test. Prepare with flashcards and multiple choice questions, each question offers hints and explanations. Get ready for success!

In sexor zone I injuries, the priority is to protect the terminal extensor tendon so it can heal without letting the fingertip droop into flexion. The injury disrupts the tendon at the DIP joint, creating a tendency toward flexion and potential extension lag if not kept in check. Therefore the rehabilitation goal centers on preserving DIP extension during the healing period and then gradually advancing motion once healing is underway. This is typically done with a splint that keeps the DIP joint in full extension for several weeks, allowing the tendon to repair. After this immobilization phase, gentle and then progressive motion is introduced to restore flexion and prevent stiffness. Early bending or forcing motion too soon can disrupt the repair, and immobilizing in a flexed position or jumping straight to full ROM would both risk re-injury and stiffness.