A second degree injury is a partial tear with no firm endpoint when the joint is stressed, and a third degree is a complete tear of the ligament. A physical examination will be done to test the extent of damage. Some other tests may include an MRI or joint X-ray.
Review Date 6/13/2021
Updated by: C. Benjamin Ma, MD, Professor, Chief, Sports Medicine and Shoulder Service, UCSF Department of Orthopaedic Surgery, San Francisco, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.