title: Ultrasound Diagnosis of Double Crush Syndrome of the Ulnar Nerve by the Anconeus Epitrochlearis and a Ganglion.
abstract: Double compression of the ulnar nerve, including Guyon's canal syndrome associated with cubital tunnel syndrome caused by the anconeus epitrochlearis muscle, is a very rare condition. We present a case of double crush syndrome of the ulnar nerve at the wrist and elbow in a 55-year-old man, as well as a brief review of the literature. Although electrodiagnostic findings were consistent with an ulnar nerve lesion only at the elbow, ultrasonography revealed a ganglion compressing the ulnar nerve at the hypothenar area and the anconeus epitrochlearis muscle lying in the cubital tunnel. Careful physical examination and ultrasound assessment of the elbow and wrist confirmed the clinical diagnosis prior to surgery.
authors.affiliation: Department of Orthopedics, Incheon St. Mary's Hospital, The Catholic University of Korea, Incheon, Korea.
authors.forename: Sang-Uk
authors.initials: SU
authors.lastname: Lee
authors.affiliation: Department of Rehabilitation Medicine, Incheon St. Mary's Hospital, The Catholic University of Korea, Incheon, Korea.
authors.forename: Min-Wook
authors.initials: MW
authors.lastname: Kim
authors.affiliation: Department of Rehabilitation Medicine, Incheon St. Mary's Hospital, The Catholic University of Korea, Incheon, Korea.
authors.forename: Jae Min
authors.initials: JM
authors.lastname: Kim
keywords: Anconeus epitrochlearis; Double crush syndrome; Ulnar nerve; Ultrasound