Extensor Carpi Ulnaris Subluxation - 01/10/21

Doi : 10.1016/j.hcl.2021.06.005

Jacqueline N. Byrd, MD, MPH ^a,^b, Sarah E. Sasor, MD ^c, Kevin C. Chung, MD, MS ^a,^⁎
^a Section of Plastic Surgery, Department of Surgery, University of Michigan Medical School, North Campus Research Complex, 2800 Plymouth Road, Building 16, Room 122W, Ann Arbor, MI 48109, USA
^b Department of Surgery, University of Texas Southwestern Medical School, Dallas, TX, USA
^c Department of Plastic Surgery, Medical College of Wisconsin, Tosa Center, South Entry, Suite T2500, 1155 N Mayfair Road, Wauwatosa, WI 53226, USA

^∗Corresponding author. Section of Plastic Surgery, University of Michigan Comprehensive Hand Center, The University of Michigan Health System, 1500 East Medical Center Drive, 2130 Taubman Center, SPC 5340, Ann Arbor, MI 48109-5340.Section of Plastic SurgeryUniversity of Michigan Comprehensive Hand CenterThe University of Michigan Health System1500 East Medical Center Drive2130 Taubman CenterSPC 5340Ann ArborMI48109-5340

Resumen

Extensor carpi ulnaris tendon subluxation can be a challenging diagnosis as a cause of wrist pain. The tendon is stabilized by a tough subsheath. This subsheath is vulnerable to tears in acute wrist movements, especially those combining supination, flexion, and ulnar deviation. The patient presenting acutely may experience swelling, tenderness, and pain. In a chronic setting, the complaint is often an unstable wrist. The diagnosis can be made with a thorough examination, and ultrasonography can be used to evaluate the dynamics of the tendon. Surgical repair with a flap of extensor retinaculum to re-create the tendon’s stabilizing subsheath is recommended.

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Keywords : Hand surgery, Wrist pain, Patient outcomes, Sports injuries