J Korean Orthop Assoc.  2023 Feb;58(1):73-77 . 10.4055/jkoa.2023.58.1.73 .

Misdiagnosed Snapping Triceps Syndrome on Ulnar Nerve Dislocation

• Kim JH
• Cho CH
• Koo TW
• Kim DH

• KMID: 2539504
• DOI: http://doi.org/10.4055/jkoa.2023.58.1.73

Abstract

Snapping triceps syndrome is a rare disease in which the distal portion of the medial triceps dislocates over the medial epicondyle during flexion of the elbow. It is usually accompanied with ulnar nerve dislocation and double snapping is clinically important feature. Dynamic ultrasonography is useful diagnostic tool for snapping triceps syndrome and ulnar nerve dislocation. But it is often misdiagnosed as ulnar nerve dislocation alone. This review reports a case of 28-year-old professional golfer who had a single snapping on elbow, misdiagnosed as ulnar nerve dislocation alone and eventually diagnosed as ulnar nerve dislocation and snapping triceps syndrome and also reflects factors that are overlooked through first and second operations.

Keyword

snapping triceps syndrome; ulnar nerve dislocation; dynamic ultrasonography