title: [Anatomical and clinical study of the supinator syndrome evoked embitterment test].
abstract: OBJECTIVE
  To explore the mechanism and feasibility of the supinator syndrome evoked embitterment test from anatomy and clinic.
  
  
  METHODS
  25 cases of The supinator syndrome were reviewed. 18 of them were male and 7 were female. Drop finger deformation were apparent in 25 cases and The supinator syndrome evoked embitterment test was positive for All patients. Operative neurolysis was done in 8 cases, conservation treatment 17 cases; 92 cadaver upper extremities were dissected for a study the relationship between supinator tunnel and posterior interosseous nerve.
  
  
  RESULTS
  22 cases had been followed up for an average of 9 months. 16 cases had a full recovery and 6 cases, a partial recovery. the anatomical study shows that The posterior interosseous nerve was compressed by Forhse arcade and the distal border of the supinator muscle during passive pronation forearm.
  
  
  CONCLUSIONS
  The supinator syndrome evoked embitterment test was a new test for the diagnosis of supinator syndrome, it was found to be more sensitive and specific than the others test.
authors.affiliation: Department of Orthopeadic, Chuiyangliu Hospital, Beijing 100020, China.
authors.forename: Long-xi
authors.initials: LX
authors.lastname: Ren
authors.forename: Qiu-tie
authors.initials: QT
authors.lastname: Bai
authors.forename: Ting-cai
authors.initials: TC
authors.lastname: Zhang
authors.forename: Yan-song
authors.initials: YS
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Zhao
authors.forename: Min
authors.initials: M
authors.lastname: Zhang
authors.forename: De-long
authors.initials: DL
authors.lastname: Liu
mesh_terms: D005080:Exercise Test / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D009408:Nerve Compression Syndromes / Q000175:diagnosis*; D011826:Radial Nerve / Q000473:pathology*; D020425:Radial Neuropathy / Q000175:diagnosis* / Q000473:pathology* / Q000628:therapy; D012680:Sensitivity and Specificity