J Korean Orthop Assoc.  2021 Feb;56(1):98-101. 10.4055/jkoa.2021.56.1.98.

Guyon’s Canal Syndrome Caused by an Accessory Abductor Digiti Minimi Muscle

• Park SJ
• Kwon YT
• Lee TJ

• KMID: 2512903
• DOI: http://doi.org/10.4055/jkoa.2021.56.1.98

Abstract

Ulnar tunnel syndrome by anomalous muscles has not been reported in Korea because it is asymptomatic in most cases. The most common anomalous muscles are the accessory abductor digiti minimi and palmaris longus. This is a case report of a patient with ulnar tunnel syndrome at the wrist by the accessory abductor digiti minimi muscle. For patients with ulnar tunnel syndrome, it is important to consider that anomalous muscles can cause ulnar tunnel syndrome.

Keyword

ulnar tunnel syndrome; Guyon’s canal syndrome; accessory abductor digiti minimi muscle