title: Guyon's canal syndrome. A different clinical presentation caused by an atypical fibrous band.
abstract: An atypical case of Guyon's canal syndrome is reported. A 40-year-old woman with hypoaesthesia and claw-finger deformity of the little finger, hypothenar muscle atrophy but no first dorsal interosseous muscle atrophy, underwent release of a fibrous band to decompress the ulnar nerve at the deep branch just proximal to the branch to the abductor digiti minimi muscle. The claw-finger deformity recovered 1 week after surgery.
authors.affiliation: Department of Orthopaedic Surgery, Okayama University Medical School, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Hirooka
authors.forename: H
authors.initials: H
authors.lastname: Hashizume
authors.forename: M
authors.initials: M
authors.lastname: Nagoshi
authors.forename: Y
authors.initials: Y
authors.lastname: Shigeyama
authors.forename: H
authors.initials: H
authors.lastname: Inoue
mesh_terms: D000328:Adult; D019299:Decompression, Surgical; D005260:Female; D006227:Hand Deformities, Acquired / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D009460:Neurologic Examination; D014459:Ulnar Nerve / Q000503:physiopathology / Q000601:surgery; D017769:Ulnar Nerve Compression Syndromes / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*