title: ["Primary" shoulder stiffness: illness duration and therapeutic comparison].
abstract: OBJECTIVE
  Etiology, natural history and therapy of the frozen shoulder still remains obscure. Therefore observation of natural history is of interest.
  
  
  METHODS
  In a retrospective study 140 patients with different therapies were followed-up.
  
  
  RESULTS
  28 (20%) patients were not considered as healed because of persisting complaints during the whole follow-up period with an average duration of 49 months. Mobilisation under anaesthesia (27 patients) showed an less improval in range of motion with a shortening of complaint period.
  
  
  CONCLUSIONS
  The existence of a subgroup of patients with no response on regular therapy is assumed.
authors.affiliation: Orthopädische Universitätsklinik Bonn.
authors.forename: T
authors.initials: T
authors.lastname: Wallny
authors.forename: C
authors.initials: C
authors.lastname: Melzer
authors.forename: U
authors.initials: U
authors.lastname: Wagner
authors.forename: C J
authors.initials: CJ
authors.lastname: Wirth
authors.forename: O
authors.initials: O
authors.lastname: Schmitt
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008349:Manipulation, Orthopedic; D008875:Middle Aged; D010489:Periarthritis / Q000209:etiology* / Q000534:rehabilitation; D016059:Range of Motion, Articular / Q000502:physiology; D012189:Retrospective Studies; D012785:Shoulder Joint