ShoulderFunctional outcomes of reverse shoulder arthroplasty compared with hemiarthroplasty for acute proximal humeral fractures
Section snippets
Materials and methods
Data covering the period of January 1, 1999, to December 31, 2010, were obtained from The New Zealand Joint Registry. Registry records of all patients who underwent primary RSA and those who underwent primary shoulder hemiarthroplasty during this time with the principle diagnosis of acute proximal humeral fracture were analyzed.
Patients undergoing RSA were compared with patients undergoing shoulder hemiarthroplasty with respect to baseline information (age, sex, surgeon case volume), operative
Results
During the study period, 55 patients who underwent primary RSA and 313 patients who underwent primary shoulder hemiarthroplasty with the principle diagnosis of acute proximal humeral fracture were identified from New Zealand Joint Registry records.
Discussion
The comparable 6-month functional results seen in our study support the findings of previous studies, which did not identify substantial early functional benefit of RSA over hemiarthroplasty in the management of acute proximal humeral fractures.13, 29 We have identified an important midterm difference between the 2 patient groups, however, with RSA patients achieving 5-year functional results superior to hemiarthroplasty patients. In addition to patient functional benefits, this superior OSS is
Conclusion
In this nationwide registry-based cohort study comparing 55 patients undergoing primary RSA with 313 patients undergoing primary hemiarthroplasty for acute proximal humeral fractures, RSA appeared to produce functionally superior results to hemiarthroplasty at 5 years postoperatively. To our knowledge, this study reports the largest series with functional postoperative outcome data comparing RSA with hemiarthroplasty in the management of acute proximal humeral fractures. Our results support RSA
Disclaimer
The authors, their immediate families, and any research foundations with which they are affiliated have not received any financial payments or other benefits from any commercial entity related to the subject of this article.
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This study was approved by the Multi Region Ethics Committee, New Zealand (study reference number: MEC/11/EXP/088).