title: Peroneal nerve injury associated with sports-related knee injury.
abstract: OBJECTIVE
  This study analyzes 84 cases of peroneal nerve injuries associated with sports-related knee injuries and their surgical outcome and management.
  
  
  METHODS
  The authors retrospectively reviewed the cases of peroneal nerve injury associated with sports between the years 1970 and 2010. Each patient was evaluated for injury mechanism, preoperative neurological status, electrophysiological studies, lesion type, and operative technique (neurolysis and graft repair). Preoperative status of injury was evaluated by using a grading system published by the senior authors. All lesions in continuity had intraoperative nerve action potential recordings.
  
  
  RESULTS
  Eighty-four (approximately 18%) of 448 cases of peroneal nerve injury were found to be sports related, which included skiing (42 cases), football (23 cases), soccer (8 cases), basketball (6 cases), ice hockey (2 cases), track (2 cases) and volleyball (1 case). Of these 84 cases, 48 were identified as not having fracture/dislocation and 36 cases were identified with fracture/dislocation for surgical interventions. Good functional outcomes from graft repair of graft length < 6 cm (70%) and neurolysis (85%) in low-intensity peroneal nerve injuries associated with sports were obtained. Recovery from graft repair of graft length between 6 and 12 cm (43%) was good and measured between Grades 3 and 4. However, recovery from graft repair of graft length between 13 and 24 cm was obtained in only 25% of patients.
  
  
  CONCLUSIONS
  Traumatic knee-level peroneal nerve injury due to sports is usually associated with stretch/contusion, which more often requires graft repair. Graft length is the factor to be considered for the prognosis of nerve repair.
authors: Department of Neurosurgery, School of Medicine, Ewha Womans University, Seoul, Korea.
authors: Dosang
authors: D
authors: Cho
authors: Kriangsak
authors: K
authors: Saetia
authors: Sangkook
authors: S
authors: Lee
authors: David G
authors: DG
authors: Kline
authors: Daniel H
authors: DH
authors: Kim
mesh_terms: D001265:Athletic Injuries / Q000145:classification / Q000453:epidemiology* / Q000503:physiopathology; D015897:Comorbidity; D006801:Humans; D007718:Knee Injuries / Q000453:epidemiology* / Q000503:physiopathology; D008297:Male; D019635:Neurosurgical Procedures / Q000379:methods*; D010543:Peroneal Nerve / Q000293:injuries* / Q000503:physiopathology*; D020427:Peroneal Neuropathies / Q000453:epidemiology* / Q000503:physiopathology; D012189:Retrospective Studies