Ulnar collateral ligament tear

  • chronic overuse
  • throwing, over head motion (tennis serve)
  • excess valgus stress
  • increasing pain medial elbow
  • paresthesia forearm, 4th 5th digits
  • ulnar collateral ligament ossification
  • loose bodies
  • ulnohumeral osteoarthritis
  • capitellum osteochondritis dissecans
  • excess medial joint opening in stress radiograph
  • lax, discontinuous ulnar collateral ligament
  • high T2 signal of UCL and soft tissue around it
  • poor definition of ligament margins