title: [Related factor analysis of cubital tunnel syndrome caused by cubitus valgus deformity].
abstract: OBJECTIVE
  To explore related factors of cubital tunnel syndrome caused by cubitus valgus deformity so as to provide theoretical basis for the clinical treatment.
  
  
  METHODS
  Between June 2002 and September 2008, 40 patients with cubital tunnel syndrome caused by cubitus valgus deformity underwent anterior subcutaneous ulnar transposition. Related factors was analysed through logistic regression analysis using scoring standard recommended by Yokohama City University.
  
  
  RESULTS
  All 40 patients were followed up 27.5 months on average (range, 12-75 months). The duration of cubitus valgus deformity, cubitus valgus deformity angle, and the duration of paraesthesia and muscular atrophy were identified as related factors for ulnar neuropathy and the odds ratios were 1.005 (P = 0.045), 9.374 (P = 0.000), and 4.358 (P = 0.010), respectively. The related prognosis factors were duration of paraesthesia and muscular atrophy, deformity angle, and age at surgery, with odds ratios of 8.489 (P = 0.000), 2.802 (P = 0.030), and 4.611 (P = 0.031), respectively.
  
  
  CONCLUSIONS
  Related factors for ulnar neuropathy are durations of cubitus valgus deformity, cubitus valgus deformity angle, and duration of paraesthesia and muscular atrophy. Related factors for prognosis include age at surgery, cubitus valgus deformity angle, and duration of muscular atrophy. Early anterior subcutaneous ulnar transposition should be performed in patients with cubital tunnel syndrome caused by cubitus valgus deformity.
authors.affiliation: Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan 610041, PR China.
authors.forename: Gang
authors.initials: G
authors.lastname: Liu
authors.forename: Gang
authors.initials: G
authors.lastname: Zhong
authors.forename: Min
authors.initials: M
authors.lastname: Yi
authors.forename: Shiqiang
authors.initials: S
authors.lastname: Cen
authors.forename: Zhou
authors.initials: Z
authors.lastname: Xiang
authors.forename: Fuguo
authors.initials: F
authors.lastname: Huang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D020430:Cubital Tunnel Syndrome / Q000209:etiology*; D004551:Elbow Joint / Q000002:abnormalities*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009443:Neuritis; D011379:Prognosis; D012189:Retrospective Studies; D012307:Risk Factors; D020424:Ulnar Neuropathies / Q000473:pathology; D055815:Young Adult