Acetabular cup size trends in total hip arthroplasty.

Autor:	McKenna DP; Department of Trauma and Orthopaedics, University Hospital Waterford, Waterford X91 ER8E, Ireland. danielmckenna21@rcsi.com., Price A; Department of Trauma and Orthopaedics, University Hospital Waterford, Waterford X91 ER8E, Ireland., McAleese T; Department of Trauma and Orthopaedics, University Hospital Waterford, Waterford X91 ER8E, Ireland., Dahly D; Department of Epidemiology and Public Health, University College Cork, Cork T12 XF62, Ireland., McKenna P; Department of Trauma and Orthopaedics, University Hospital Waterford, Waterford X91 ER8E, Ireland., Cleary M; Department of Trauma and Orthopaedics, University Hospital Waterford, Waterford X91 ER8E, Ireland.
Jazyk:	angličtina
Zdroj:	World journal of orthopedics [World J Orthop] 2024 Jan 18; Vol. 15 (1), pp. 39-44. Date of Electronic Publication: 2024 Jan 18 (Print Publication: 2024).
DOI:	10.5312/wjo.v15.i1.39
Abstrakt:	Background: Total hip arthroplasty (THA) is a common procedure for end stage osteoarthritis. The learning curve for THA is complex and challenging. One of the most difficult skills to master is acetabular reaming. We wish to identify if experience in arthroplasty leads to preservation of more bone stock. Aim: To investigate if increasing surgeon experience will predict an ever decreasing acetabular cup size. Methods: A retrospective case series of four attending orthopaedic surgeons was completed. All uncemented elective total hip arthroplasties since appointment were selected for inclusion. The size of acetabular cup used was noted and logistic regression was used to identify if a trend to smaller cups existed. Results: A total of 1614 subjects were included with a mean age of 64 years. Overall cups were on average 0.18mm smaller per year (95% confidence interval -0.25 to -0.11, P < 0.001). Individual surgeon trends showed cup sizes to decrease 0.27 mm/year for surgeon A, 0.02 mm/year for surgeon B, 0.15 mm/year for surgeon C and 0.29 mm/year for surgeon D. Three of the four surgeons had a more pronounced trend to smaller cups for male subjects than their female counterparts. Conclusion: We found increasing surgeon experience to be associated with an ever-decreasing acetabular cup size. Smaller acetabular cup size may act as a surrogate marker of surgical proficiency by virtue of decreased acetabular reaming. Competing Interests: Conflict-of-interest statement: The authors have no conflicts of interest to declare. (©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.)
Databáze:	MEDLINE
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