title: The pattern of muscle involvement in ulnar neuropathy at the elbow.
abstract: OBJECTIVE
  To determine the pattern of muscle involvement in patients with ulnar neuropathy at the elbow.
  
  
  METHODS
  This study evaluated all patients referred for upper limb electrodiagnostic study (EDX) during 2007-2011 and included. patients with clinical signs and symptoms of ulnar neuropathy at the elbow. All patients had nerve conduction studies (NCS) for ulnar neuropathy. Needle electromyography (EMG) of four ulnar innervated muscles, flexor carpi ulnaris (FCU), flexor digitrom profoundus (FDP), first dorsal interosseous (FDI) and abductor digiti minimi (ADM)) was evaluated.
  
  
  RESULTS
  During the study period 34 (23 males and 11 females) patients were diagnosed with ulnar neuropathy at the elbow and three of them had bilateral involvement. Muscle involvement by EMG was as follows: FDI: 91.9%, ADM: 91.3%, FCU: 64.9% and FDP: 56.8%.
  
  
  CONCLUSIONS
  In this study, EMG abnormalities of nerve damage were presented more commonly in the FCU muscle than in the FDP in patients with ulnar nerve lesion at the elbow.
authors.affiliation: Physical Medicine and Rehabilitation Research Center, Shohada Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. d.eliaspour@yahoo.com
authors.forename: Dariush
authors.initials: D
authors.lastname: Eliaspour
authors.forename: Leyla
authors.initials: L
authors.lastname: Sedighipour
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Hedayati-Moghaddam
authors.forename: Seyed Mansoor
authors.initials: SM
authors.lastname: Rayegani
authors.forename: Mohammad Hassan
authors.initials: MH
authors.lastname: Bahrami
authors.forename: Reza Salman
authors.initials: RS
authors.lastname: Roghani
mesh_terms: D000200:Action Potentials / Q000502:physiology; D000293:Adolescent; D000328:Adult; D000368:Aged; D004550:Elbow / Q000294:innervation*; D004558:Electric Stimulation; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000503:physiopathology*; D009431:Neural Conduction / Q000502:physiology; D012189:Retrospective Studies; D020424:Ulnar Neuropathies / Q000175:diagnosis / Q000473:pathology* / Q000503:physiopathology; D055815:Young Adult