How effective is splinting for mallet finger?

Mallet finger happens when the tendon that straightens the fingertip is injured, sometimes with a small bone injury. The fingertip may droop and may not actively straighten. A splint supports the end joint in extension, preventing the healing tendon from being repeatedly pulled apart.

The middle finger joint should usually remain free to bend unless your clinician gives different instructions. A splint does not make the tendon strong immediately; healing requires the fingertip to stay correctly positioned throughout the advised treatment period.

Keep the fingertip supported as instructed, including during washing or changing the splint. If the fingertip bends while the splint is off, contact your clinician because the treatment plan may need adjustment. Check the skin for rubbing, moisture, or pressure, and keep the splint clean and dry.

Do not test the fingertip by repeatedly letting it droop. Move the other finger joints if permitted, but avoid gripping activities that force the injured finger. Read more about the treatment in the Splinting guide.

Seek assessment if the fingertip remains drooped, becomes more painful, or develops marked swelling, numbness, colour change, or a skin wound. Urgent review is appropriate after a deep cut, a visible deformity, or an injury involving a crushed fingertip or nail bed.

Ask whether the tendon or bone is involved, which joints the splint should cover, and how to wash without bending the fingertip. Clarify the wearing schedule, skin-care routine, exercise timing, and what to do if the finger bends accidentally.