Perioperative mortality after hemiarthroplasty related to fixation method: A study based on the Australian Orthopaedic Association National Joint Replacement Registry
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Date
2011
Authors
Costain, D.
Whitehouse, S.
Pratt, N.
Graves, S.
Ryan, P.
Crawford, R.
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Acta Orthopaedica, 2011; 82(3):275-281
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Darren J Costain, Sarah L Whitehouse, Nicole L Pratt, Stephen E Graves, Philip Ryan, and Ross W Crawford
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Abstract
Background and purpose: The appropriate fixation method for hemiarthroplasty of the hip as it relates to implant survivorship and patient mortality is a matter of ongoing debate. We examined the influence of fixation method on revision rate and mortality. Methods: We analyzed approximately 25,000 hemiarthroplasty cases from the AOA National Joint Replacement Registry. Deaths at 1 day, 1 week, 1 month, and 1 year were compared for all patients and among subgroups based on implant type. Results: Patients treated with cemented monoblock hemiarthroplasty had a 1.7-times higher day-1 mortality compared to uncemented monoblock components (p < 0.001). This finding was reversed by 1 week, 1 month, and 1 year after surgery (p < 0.001). Modular hemiarthroplasties did not reveal a difference in mortality between fixation methods at any time point. Interpretation: This study shows lower (or similar) overall mortality with cemented hemiarthroplasty of the hip.
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Open Access - This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the source is credited.