title: [Glenohumeral instability in patients over 40 years-old: injuries, treatment and complications].
abstract: BACKGROUND
  Recurrent shoulder dislocation is infrequent after forty years and presents different injuries than younger patients.
  
  
  OBJECTIVE
  To compare injuries and complications after surgery between one group older than forty years of age and another younger group.
  
  
  METHODS
  A review was made o all patients who had undergone arthroscopic surgery due to glenohumeral instability from 1999 until 2011. The mean follow-up was 64 months. The case group consisted of all patients older than 40 years at the time of the surgery (n=21), which was compared with a similar sized control group of randomly selected younger patients (n=27).
  
  
  RESULTS
  The mean age in the older group was 54 years (SD 11.86), while it was 26 years (SD 5.80) in the younger group. No differences were founded between both groups in labrum injury, Hill-Sachs injury, and bone Bankart lesion (P>.05). Rotator cuff tears were 7.3 times (95% CI; 2.5-21.6) more frequent in the older group (81%) compared to the younger group (P<.05). However, neurological injuries after dislocation were not more frequent in this group. There was no significant difference between the complications after surgery and the age according to the design (P>.05).
  
  
  CONCLUSIONS
  Anterior recurrent dislocation after forty years of age is usually associated with rotator cuff tears. Arthroscopic treatment of instability was effective with no more postoperative complications.
authors.affiliation: Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España. Electronic address: alhualda@hotmail.com.
authors.forename: A
authors.initials: A
authors.lastname: López-Hualda
authors.affiliation: Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España.
authors.forename: M A
authors.initials: MA
authors.lastname: Marín-Aguado
authors.affiliation: Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España.
authors.forename: H
authors.initials: H
authors.lastname: Valencia-García
authors.affiliation: Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España.
authors.forename: D
authors.initials: D
authors.lastname: López-González
authors.affiliation: Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, España.
authors.forename: C
authors.initials: C
authors.lastname: Gavín-González
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D015331:Cohort Studies; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology*; D012189:Retrospective Studies; D000070599:Shoulder Injuries
keywords: Complicaciones; Complications; Cuarenta años; Forty years; Inestabilidad hombro; Lesión del manguito; Rotator cuff tears; Shoulder instability