title: Outcomes After Hemiarthroplasty for Proximal Humerus Fracture Are Significantly Affected by Hand Dominance.
abstract: OBJECTIVE
  Hand dominance has been reported to be an important factor affecting outcomes after upper extremity trauma but remains unstudied after hemiarthroplasty for fracture. This study determined whether dominance affected outcomes after hemiarthroplasty for proximal humerus fractures.
  
  
  METHODS
  Retrospective cohort study.
  
  
  METHODS
  Tertiary care referral center.
  
  
  METHODS
  Sixty-one patients, after hemiarthroplasty for proximal humerus fracture, returned for comprehensive assessment and were divided into 2 groups: dominant (DOM) shoulder affected (n = 25) and non-dominant (non-DOM) shoulder affected (n = 36).
  
  
  METHODS
  Fracture-specific proximal humeral hemiarthroplasty for displaced proximal humerus fractures.
  
  
  METHODS
  Patients were assessed with self-reported outcomes (visual analog scale pain, American Shoulder and Elbow Surgeons shoulder score, disability of the arm, shoulder, and hand questionnaire, simple shoulder test, and short form 12) and objective (range-of-motion and hand-held dynamometer strength) testing.
  
  
  RESULTS
  At 49 months of mean follow-up, there were no significant differences between groups for gender, age, follow-up time, or visual analog scale pain (P > 0.256). The DOM-affected group had significantly worse scores for American Shoulder and Elbow Surgeons shoulder score (P = 0.043), disability of the arm, shoulder, and hand questionnaire (P = 0.039), and simple shoulder test (P = 0.021). The DOM-affected group also had consistently higher correlations between self-reported and objective outcomes than the non-DOM group.
  
  
  CONCLUSIONS
  Patients who underwent hemiarthroplasty for fracture on their DOM shoulders had significantly poorer outcomes than patients with non-DOM-sided injuries. Although positive outcomes can be expected after hemiarthroplasty, patients should be instructed that they may have less satisfactory function and strength if their injury was on the DOM side.
  
  
  METHODS
  Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.
authors: Roth McFarlane Hand and Upper Limb Center, St Joseph's Health Care, University of Western Ontario, London, Canada.
authors: Justin E M
authors: JE
authors: LeBlanc
authors: Joy C
authors: JC
authors: MacDermid
authors: Kenneth J
authors: KJ
authors: Faber
authors: Darren S
authors: DS
authors: Drosdowech
authors: George S
authors: GS
authors: Athwal
mesh_terms: D000368:Aged; D015331:Cohort Studies; D005260:Female; D017102:Fracture Healing; D007839:Functional Laterality; D062785:Hemiarthroplasty / Q000009:adverse effects* / Q000379:methods; D006801:Humans; D008297:Male; D020127:Recovery of Function; D012189:Retrospective Studies; D012784:Shoulder Fractures / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery*; D020069:Shoulder Pain / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D016896:Treatment Outcome