title: Total shoulder arthroplasty versus hemiarthroplasty for glenohumeral arthritis: A systematic review of the literature at long-term follow-up.
abstract: BACKGROUND
  The optimal surgical treatment of end-stage primary glenohumeral osteoarthritis remains controversial. The objective of this article is to systematically review the current available literature to formulate evidence-based guidelines for treatment of this pathology with an arthroplasty.
  
  
  METHODS
  A systematic literature search was performed to identify all articles from 1990 onward that presented data concerning treatment of glenohumeral arthritis with total shoulder arthroplasty (TSA) or head arthroplasty (HA) with a minimal follow-up of 7 years. The most relevant electronic databases were searched.
  
  
  RESULTS
  After applying the inclusion and exclusion criteria, we identified 18 studies (of the initial 832 hits). The search included a total of 1,958 patients (HA: 316 and TSA: 1,642) with 2,111 shoulders (HA: 328 + TSA: 1,783). The revision rate for any reason in the HA group (13%) was higher than in the TSA group (7%) (P < 0.001). There was a trend of a higher complication rate (of any kind) in the TSA group (12%) when compared with the HA group (8%) (P = 0.065). The weighted mean improvement in anteflexion, exorotation and abduction were respectively 33°, 15° and 31° in the HA group and were respectively 56°, 21° and 48° in the TSA group. Mean decrease in pain scores was 4.2 in the HA and 5.5 in the TSA group.
  
  
  CONCLUSIONS
  Finally, we conclude that TSA results in less need for revision surgery, but has a trend to result in more complications. The conclusions of this review should be interpreted with caution as only Level IV studies could be included.
  
  
  METHODS
  IV.
authors.affiliation: Department of Orthopaedic Surgery, OLVG, Amsterdam, Netherlands.
authors.forename: Michel P J
authors.initials: MP
authors.lastname: van den Bekerom
authors.forename: Pieter C
authors.initials: PC
authors.lastname: Geervliet
authors.forename: Matthijs P
authors.initials: MP
authors.lastname: Somford
authors.forename: Maaike P J
authors.initials: MP
authors.lastname: van den Borne
authors.forename: Ronald
authors.initials: R
authors.lastname: Boer
keywords: Arthroplasty; complication; glenoid; humerus; osteoarthritis; revision rate; shoulder; systematic review