title: Evolving trends in surgically managed patients with proximal humerus fracture: are we different after ten years?
abstract: BACKGROUND
  New knowledge, and improved surgical hardware and fixation techniques have changed surgical management. We review the evolving trends of surgically managed proximal humerus fractures.
  
  
  METHODS
  Patients who underwent surgery for proximal humerus fractures from 1 January 2001 to 31 December 2010 were identified from the hospital's electronic diagnosis and operative coding database. Data extracted from the database included patient demographics, comorbidities, clinical and radiological findings, operative techniques, and complications.
  
  
  RESULTS
  In total, 95 patients with 97 surgically managed proximal humerus fractures were identified. The median age of the patients was 50 (range 12-85) years, and the male to female ratio was 1.2:1.0. Male patients tended to present at a younger age than female patients (peak age 30-39 years vs. 70-79 years, p < 0.001). Two-part surgical neck fracture was the most common type of fracture (n = 33, 34.0%). Plate osteosynthesis was predominantly used for two- and three-part surgical neck fractures involving the greater tuberosity (p = 0.03, p = 0.0002, respectively). Hemiarthroplasty was commonly performed for four-part fractures (p < 0.001). Wound infections, implant failure, avascular necrosis of the humeral head and nonunion were seen in 8 (8.3%) cases. Minimally invasive plate osteosynthesis (MIPO) had been in use since 2007 (p < 0.001).
  
  
  CONCLUSIONS
  Surgically managed proximal humerus fractures predominantly involved young men following high velocity injury and elderly women following osteoporotic fractures. Open plating was most commonly used for two- and three-part fractures, and hemiarthroplasty for four-part fractures. MIPO techniques have been practised in our institution since 2007.
authors: Department of Orthopaedic Surgery, National University of Singapore, National University Health System, 1E Kent Ridge Road, Singapore 119228. choonchiet@gmail.com.
authors: Choon Chiet
authors: CC
authors: Hong
authors: Dennis Hwee Weng
authors: DH
authors: Hey
authors: Diarmuid
authors: D
authors: Murphy
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005260:Female; D005593:Fracture Fixation, Internal / Q000639:trends*; D062785:Hemiarthroplasty / Q000639:trends*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012784:Shoulder Fractures / Q000601:surgery*; D055815:Young Adult
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