Extensor Tendon Repair

Through an incision over the injury, most often a laceration, the divided ends of the extensor tendon are stitched back together. Because the tendon lies close to the skin over the back of the hand and fingers, this is often a relatively short procedure, typically taking around an hour, and is usually day surgery.

Assessment includes examination of the specific finger movement affected and the wound itself. Because outcomes are generally better with prompt repair, surgery is usually arranged soon after the injury. Standard preoperative steps apply otherwise, including fasting and arranging transport home.

A splint holds the finger in an extended position to protect the repair while it heals. Hand therapy typically begins within the first couple of weeks, with the splint gradually adjusted to allow more controlled movement as the tendon strengthens. Full recovery generally takes a couple of months.

A structured hand therapy programme, tailored to the specific location and type of injury, balances protecting the healing tendon with introducing enough controlled movement to prevent stiffness. Close adherence to the splinting and exercise schedule set by the hand therapist strongly influences the final result.

Risks include infection, stiffness, and the tendon re-rupturing if strained too early during healing. Some patients experience a residual lag in fully straightening the finger even with good treatment adherence.

The aim is to restore the ability to fully straighten the finger. Most patients regain good function, though the specific outcome depends on where along the finger the injury occurred, as some locations have a more challenging healing environment than others.

Extensor tendon repair reattaches a divided tendon to restore the ability to straighten the finger. As with flexor tendon repair, following the structured hand therapy programme closely is central to achieving a good functional outcome.