Thumb or Elbow?: The ulnar collateral ligament (ucl) is a primary stabilizer to one of your thumb joints. It provides stability to the thumb when you pinch something between your thumb and index finger. It is injured when the thumb is bent backwards and outwards. It is unlikely that you injured the actual flexor tendon to the thumb but rather the insertion of some thumb muscles that attach near the ucl.
Answered 2/21/2019
5.3k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
5 doctors weighed in across 2 answers
10 doctors weighed in across 4 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question