Extensor Carpi Ulnaris Subluxation (Snapping ECU)

The extensor carpi ulnaris tendon passes through a groove on the ulna bone of the forearm where it is held in position by a sheath of connective tissue. Deficiency of this sheath can lead to dislocation or subluxation of the tendon causing pain and snapping with wrist movement.

  • The American Board of  Orthopaedic Surgery
  • Allegheny General Hospital
  • University of Pittsburgh  Medical Center
  • University of Cincinnati College of Medicine
  • American Society for Surgery of the Hand
  • American Association for Hand Surgery: AAHS
  • Alpha Omega Alpha