title: Myoclonic movements of the elbow and wrist as a rare complication of supracondylar humerus fracture in a child.
abstract: Supracondylar humerus fractures are associated with neurological complications. This report describes a child who suffered from persistent myoclonus-like movements of the elbow and wrist as a consequence of a previous displaced fracture. Symptoms were progressive. Seven years later, sensation was decreased in the ulnar nerve distribution. Palpation of the ulnar nerve exacerbated the myoclonic jerks. As symptoms progressed, electoneuromyography became abnormal. Cubital tunnel release and anterior transposition of the ulnar nerve were required to reach full recovery. Long-term outcome was excellent. In conclusion, myoclonus-like movements are a rare complication of supracondylar humerus fractures, resulting from ulnar nerve injury.
authors.affiliation: Departments of aChildren and Adolescents, Pediatric Surgery and Orthopedics bNeurosurgery cChildren and Adolescents, Pediatric Neurology, Oulu University Hospital dPEDEGO Research Center Oulu, MRC OULU, Oulu University, Oulu, Finland.
authors.forename: Juha-Jaakko
authors.initials: JJ
authors.lastname: Sinikumpu
authors.forename: Niina
authors.initials: N
authors.lastname: Salokorpi
authors.forename: Heikki
authors.initials: H
authors.lastname: Rantala
authors.forename: Willy
authors.initials: W
authors.lastname: Serlo
mesh_terms: D002648:Child; D004551:Elbow Joint / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D006810:Humeral Fractures / Q000150:complications* / Q000000981:diagnostic imaging*; D009207:Myoclonus / Q000000981:diagnostic imaging* / Q000209:etiology*; D014955:Wrist Joint / Q000000981:diagnostic imaging*