Extensor tendon repair
Surgical repair of a cut or torn extensor tendon that straightens a finger or the thumb. Like flexor repairs, protection and motion rules are protocol-driven.
- Phases
3
- Red flags
3
- Sources
1
Editorial content last reviewed 2026-04-30. Always follow your own clinical team.
Why it's done
- Unable to fully straighten a finger or thumb after a cut or avulsion injury
- Disruption of the extensor mechanism at the wrist or finger
Related condition overview
Our learn library has a separate page on Mallet finger — helpful context alongside this surgery overview.
Typical recovery phases
General patterns only — your protocol wins.
- Phase 1Weeks 0–4
Protect the repair; maintain extension as directed.
Wear your splint exactly as prescribed; avoid letting the tip drop if the DIP is involved.
- Phase 2Weeks 4–8
Gradually increase active extension and gentle flexion.
Progress only with therapist and surgeon clearance.
- Phase 3Weeks 8–12
Light strengthening and return to daily tasks.
Avoid forceful gripping until cleared.
Red flags — call your team
- Sudden loss of extension — possible tendon gapping
- Increasing redness, drainage, or fever
- New numbness or color change
Splints you may wear
Related motions in the movement library
Canonical hand-therapy movements linked to this condition for education — not a substitute for your own program or clearance.
Sources
- Extensor tendon injuries — American Society for Surgery of the Hand(accessed 2026-04-30)