title: [The reverse shoulder arthroplasty Delta Xtend : Mid-term results].
abstract: BACKGROUND
  Reverse shoulder arthroplasty (RSA) has become a frequently used and established treatment for patients with cuff tear arthropathy, increasingly also for patients with fracture sequelae (FS), failed rotator cuff reconstruction and omarthrosis with cuff insufficiency. Since 2007 new generation prostheses, for example Delta Xtend (Depuy, Warsaw, USA), have been used, but few mid-term results have been published.
  
  
  OBJECTIVE
  The aim of this study is to report on the outcome after RSA after a mean follow-up of 68 months (range 63-75), to verify the already published, encouraging early results and to learn about the function and pain situation after RSA in the mid-term period.
  
  
  METHODS
  60 patients underwent RSA with the Depuy Delta Xtend prosthesis in the years 2007 and 2008, performed by the senior author of this study. 39 of these patients were available for follow up and were asked to complete a questionnaire (msCS, modified subjective Constant Score). In addition, 28 patients agreed to a clinical examination. With these patients, in addition, the constant score, age and gender-adjusted constant score and range of motion were evaluated.
  
  
  RESULTS
  The mean msCS of preoperative 39.15 points (range 12-69) improved to 71.74 points (range 44-100) after 5 years. The mean CS at 5 years was 65.79 points (range 21-93) and the mean age and gender-adjusted constant score was 92%. The mean active anterior elevation was 139° (range 70-180°), the mean abduction was 135° (range 50-170°) and the mean active external rotation was 17° (range -20-40°).
  
  
  CONCLUSIONS
  This study confirms good early results after RSA after more than 5 years. We see very good outcomes in patients with CTA and omarthrosis, whilst the rate of complication is low.
authors.affiliation: Orthopädie und Unfallchirurgie, St. Vinzenz Klinik Allgäu, Kirchenweg 15, 87459, Pfronten, Deutschland. gruber-stephanie@brennercom.net.|, Swarowskistraße 1-3, 6130, Schwaz, Tirol, Österreich. gruber-stephanie@brennercom.net.
authors.forename: S
authors.initials: S
authors.lastname: Gruber
authors.affiliation: Orthopädie und Unfallchirurgie, St. Vinzenz Klinik Allgäu, Kirchenweg 15, 87459, Pfronten, Deutschland.
authors.forename: C
authors.initials: C
authors.lastname: Schoch
authors.affiliation: Orthopädie und Unfallchirurgie, St. Vinzenz Klinik Allgäu, Kirchenweg 15, 87459, Pfronten, Deutschland.
authors.forename: M
authors.initials: M
authors.lastname: Geyer
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000072228:Arthroplasty, Replacement, Shoulder / Q000295:instrumentation* / Q000379:methods*; D019544:Equipment Failure Analysis; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D011474:Prosthesis Design; D016059:Range of Motion, Articular; D000070636:Rotator Cuff Injuries / Q000175:diagnosis* / Q000628:therapy*; D000072227:Shoulder Prosthesis; D016896:Treatment Outcome
keywords: Arthroplasties, replacement; Cuff, rotator; Followup studies; Glenohumeral joint; Questionnaires