title: Arthroscopic findings in Maisonneuve fractures.
abstract: BACKGROUND
  A Maisonneuve fracture consists of a proximal fibular fracture with associated syndesmotic ligament disruption and injury to the medial ankle structures. The treatment outcome is good in most cases, although poor results have also been reported. The purpose of this study was to investigate intra-articular lesions in Maisonneuve fractures.
  
  
  METHODS
  The subjects consisted of four patients (four ankle joints) who had suffered a Maisonneuve fracture and had undergone surgical treatment between June 2005 and November 2005. The mean age was 24. 2 years. At the time of surgery, we performed ankle arthroscopy and determined the presence of tibiofibular syndesmosis disruption, cartilaginous damage, and ligament damage. Lesions of the articular cartilage were graded by depth as determined by inspection and probing.
  
  
  RESULTS
  All four of the cases had cartilaginous damage to the medial section of the talar dome. Lateral lesions were not observed. Chondral debris and hemarthrosis were noted in virtually all cases, and each ankle had a tear on the anterior inferior tibiofibular ligament and interosseous tibiofibular ligament. No patients had a tear of the posterior inferior tibiofibular ligament.
  
  
  CONCLUSIONS
  Arthroscopy was useful in identifying associated intra-articular lesions in Maisonneuve fractures.
authors.affiliation: Department of Orthopaedic Surgery, Fukuoka University School of Medicine, Fukuoka, Japan.
authors.forename: Ichiro
authors.initials: I
authors.lastname: Yoshimura
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Naito
authors.forename: Kazuki
authors.initials: K
authors.lastname: Kanazawa
authors.forename: Akinori
authors.initials: A
authors.lastname: Takeyama
authors.forename: Takahiro
authors.initials: T
authors.lastname: Ida
mesh_terms: D000328:Adult; D016512:Ankle Injuries / Q000150:complications / Q000473:pathology* / Q000601:surgery; D001182:Arthroscopy; D015331:Cohort Studies; D005360:Fibula / Q000293:injuries*; D050723:Fractures, Bone / Q000150:complications / Q000473:pathology* / Q000601:surgery*; D006801:Humans; D008023:Ligaments, Articular / Q000293:injuries*; D008297:Male; D016059:Range of Motion, Articular; D020127:Recovery of Function; D016896:Treatment Outcome