title: Arthroscopic repair for traumatic posterior shoulder instability.
abstract: BACKGROUND
  The role of arthroscopic repair in the treatment of posterior shoulder instability remains poorly defined.
  
  
  OBJECTIVE
  To evaluate the results of arthroscopic repair of posterior Bankart lesions.
  
  
  METHODS
  Retrospective review.
  
  
  METHODS
  Records were reviewed of 27 shoulders (26 patients). All of the patients were male with a mean age of 28.7 years; in all cases symptoms were preceded by a traumatic event. Fourteen of the patients had 2+ to 3+ posterior translation noted under preoperative anesthesia. The posterior capsulolabral complex was found to be detached from the glenoid rim in all cases; bioabsorbable tack fixation was used for repair.
  
  
  RESULTS
  At a mean follow-up of 5.1 years, no patients demonstrated a range of motion deficit. Muscle weakness (grade 4/5) in external rotation was noted in two patients (8%). There was no instability greater than 1+ in the anterior, posterior, or inferior directions. The mean L'Insalata shoulder score was 90.0 +/- 13.9. The mean SF-36 physical and mental component scores were 50.4 +/- 7 and 53.9 +/- 9, respectively. Symptoms of pain and instability were eliminated in 24 patients (92%). Two patients (8%) required additional surgery after arthroscopic repair of the posterior Bankart lesion. Radiographs demonstrated that there had been no progressive glenohumeral joint degeneration.
  
  
  CONCLUSIONS
  Arthroscopic repair of the posterior capsulolabral complex is an effective means of eliminating symptoms of pain and instability associated with posterior Bankart lesions of traumatic origin.
authors.affiliation: Sports Medicine and Shoulder Service, Hospital for Special Surgery, Cornell University Medical College, New York, New York, USA.
authors.forename: Riley J
authors.initials: RJ
authors.lastname: Williams
authors.forename: Sabrina
authors.initials: S
authors.lastname: Strickland
authors.forename: Matthew
authors.initials: M
authors.lastname: Cohen
authors.forename: David W
authors.initials: DW
authors.lastname: Altchek
authors.forename: Russell F
authors.initials: RF
authors.lastname: Warren
mesh_terms: D020341:Absorbable Implants; D000328:Adult; D001182:Arthroscopy; D001265:Athletic Injuries / Q000150:complications* / Q000601:surgery; D019299:Decompression, Surgical; D006305:Health Status Indicators; D006801:Humans; D016268:Internal Fixators; D007593:Joint Instability / Q000209:etiology* / Q000601:surgery*; D008297:Male; D018908:Muscle Weakness / Q000209:etiology; D017060:Patient Satisfaction; D011859:Radiography; D016059:Range of Motion, Articular; D012189:Retrospective Studies; D012399:Rotation; D012783:Shoulder Dislocation / Q000209:etiology* / Q000601:surgery*; D012785:Shoulder Joint / Q000000981:diagnostic imaging / Q000601:surgery; D016896:Treatment Outcome