title: [Clinical review of thirty-nine cases of ulnar tunnel syndrome].
abstract: OBJECTIVE
  To discuss the concept of ulnar tunnel at the wrist, the types, causes, traits of compression, diagnosis, and clinical significance of ulnar tunnel syndrome (UTS).
  
  
  METHODS
  Thirty-nine cases diagnosed as having UTS from 1986 were retrospectively reviewed combined with previous relevant literature.
  
  
  RESULTS
  Ulnar tunnel included Guyon's canal, piso-hamate tunnel and hypothenar segment. There were 8 types and many causes of UTS. Some patients had compression in more than one zones and might be associated with carpal tunnel syndrome or cubital tunnel syndrome. UTS could be diagnosed through clinical manifestations and electrophysiological examination.
  
  
  CONCLUSIONS
  Defining the concept of ulnar tunnel and the knowledge of the complexity and rarity of UTS can effectively guide diagnosis and treatment.
authors.affiliation: Department of Hand Surgery,the Second Hospital of Tangshan, Tangshan Hebei, 063000, P. R. China. Wbladyp3@sohu.com
authors.forename: Bin
authors.initials: B
authors.lastname: Wang
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Zhang
authors.forename: Kanghua
authors.initials: K
authors.lastname: Li
authors.forename: Tiecheng
authors.initials: T
authors.lastname: Xiang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D020430:Cubital Tunnel Syndrome / Q000145:classification / Q000175:diagnosis / Q000209:etiology / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies