Condition
Boutonnière deformity
An injury to the tendon that straightens the middle joint of a finger (the PIP joint). The middle joint stays bent while the fingertip bends back. Early treatment matters — it can become permanent if missed.
Common triggers
- Forceful bending of a straight finger
- Cuts or dislocations at the middle finger joint
- Inflammation from rheumatoid arthritis
When to seek care
- Inability to straighten the middle finger joint after injury
- A finger that is locked in a bent position with the tip flexed back
- Pain, swelling, or open wound at the middle joint
Short clips in Reel mode
Swipe short looping demos for exercises that also appear in your condition’s regimen — education only, not a custom program.
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.
Related care
Splints often used
Practice libraries beside this condition
Timed sessions and movement vocabulary live in separate hubs — open with filters cleared for browsing only, not as a substitute for your own diagnosis or plan.
Sources
- Boutonnière Deformity — AAOS OrthoInfo(accessed 2026-04-22)