title: Long-term results after arthroscopic shoulder stabilization using suture anchors: an 8- to 10-year follow-up.
abstract: BACKGROUND
  Arthroscopic stabilization using suture anchors is widely used to restore stability after anterior shoulder dislocations and is associated with low recurrence rates in short-term follow-up studies.
  
  
  OBJECTIVE
  To evaluate the long-term follow-up after arthroscopic stabilization for traumatic recurrent anterior instability using suture anchors with emphasis on both redislocations and subjective shoulder function.
  
  
  METHODS
  Case series; Level of evidence, 4.
  
  
  METHODS
  We included 67 consecutive patients with 70 affected shoulders. After 8 to 10 years, patients were asked to report the presence and course of their redislocations. Subjective shoulder function was addressed using the Oxford Instability Score (OIS), the Western Ontario Shoulder Instability Index (WOSI), and the Simple Shoulder Test (SST). Patients rated their health status using the Short Form-36 (SF-36).
  
  
  RESULTS
  Sixty-five patients with 68 affected shoulders (97%) were evaluated for follow-up; 35% reported a redislocation. Median shoulder function scores were 16 of 12 to 60, 22 of 0 to 210, and 12 of 0 to 12 for the OIS, WOSI, and SST, respectively. There was a significant difference in subjective function between patients with and without recurrent instability, respectively, 16 versus 24 for the OIS (P = .004), and 16 versus 47 for the WOSI (P = .05). We found a trend for an inverse relationship between the number of suture anchors and recurrent instability, with 2 having a higher recurrence rate than 3 or more (P = .06). Another trend was found with the presence of a Hill-Sachs defect slightly increasing the risk of a redislocation (P = .07).
  
  
  CONCLUSIONS
  With a follow-up of 97%, about one third of the stabilized shoulders experienced at least one redislocation after 8 to 10 years. The presence of a Hill-Sachs defect and the use of less than 3 suture anchors might increase the chance of a redislocation. Patients without a redislocation have a significantly better shoulder function compared with patients with a redislocation.
authors.affiliation: Department of Orthopedic Surgery, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands. javdlinde@gmail.com
authors.forename: Just A
authors.initials: JA
authors.lastname: van der Linde
authors.forename: Derk A
authors.initials: DA
authors.lastname: van Kampen
authors.forename: Caroline B
authors.initials: CB
authors.lastname: Terwee
authors.forename: Lea M
authors.initials: LM
authors.lastname: Dijksman
authors.forename: G
authors.initials: G
authors.lastname: Kleinjan
authors.forename: W Jaap
authors.initials: WJ
authors.lastname: Willems
mesh_terms: D000328:Adult; D001182:Arthroscopy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006304:Health Status; D006801:Humans; D007593:Joint Instability / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D012782:Shoulder / Q000503:physiopathology / Q000601:surgery*; D012783:Shoulder Dislocation / Q000503:physiopathology / Q000601:surgery*; D000070599:Shoulder Injuries; D053441:Suture Anchors; D016896:Treatment Outcome; D055815:Young Adult