TFCC Wrist Injury (Pinky-Side Wrist Pain): Symptoms, Causes & PT Treatment
Updated July 20261 minute read
The TFCC (triangular fibrocartilage complex) is a cushion-and-ligament structure on the pinky side of the wrist that helps it bear load and rotate. A TFCC injury causes pain on the pinky side, often with twisting (turning a doorknob), gripping, or weight-bearing, sometimes with clicking. Many TFCC injuries are managed well with relative rest, splinting, and progressive strengthening; some need further evaluation.
What is a TFCC injury?
The TFCC stabilizes the pinky side of the wrist and the forearm rotation joint. It can be injured acutely (a fall or forceful twist) or wear gradually.
Symptoms
Common features are pain on the pinky side of the wrist, worse with twisting, gripping, or pushing through the hand, sometimes with clicking or a sense of instability.
What causes it / risk factors
A fall onto an outstretched hand, forceful twisting, repetitive loading (racket sports, gymnastics), and individual wrist anatomy contribute.
How it's diagnosed
A clinician examines the pinky-side wrist with specific tests; imaging (including MRI) is used in persistent or significant cases.
Physical therapy treatment
What a PT does. Your therapist offloads the area, restores motion, and progressively strengthens the wrist and forearm to support the TFCC. Exercises & progression (overview). Relative rest or splinting, then progressive wrist and grip strengthening and graded return to twisting/weight-bearing. Recovery timeline. Many cases improve over several weeks to a few months.
Treatment options compared
Conservative care (splinting, strengthening) is first-line for many injuries. Surgery is considered for significant tears or instability that don't respond.
Red flags
Seek prompt care for significant pain and deformity after a fall, locking, or numbness/cold fingers.
Frequently asked questions
Sources (2)
- Casadei K, Kiel J. Triangular Fibrocartilage Complex. StatPearls. 2023. — StatPearls (NCBI Bookshelf)
- MedlinePlus: Wrist Injuries and Disorders. — NIH/MedlinePlus
This article is for education only and isn't medical advice. Always talk to a licensed clinician about your specific situation.