McKenna DP, Price A, McAleese T, Dahly D, McKenna P, Cleary M. Acetabular cup size trends in total hip arthroplasty. World J Orthop 2024; 15(1): 39-44 [PMID: 38293257 DOI: 10.5312/wjo.v15.i1.39]
Corresponding Author of This Article
Daniel Patrick McKenna, MBChB, Surgeon, Department of Trauma and Orthopaedics, University Hospital Waterford, Dunmore Road, Waterford X91 ER8E, Ireland. danielmckenna21@rcsi.com
Research Domain of This Article
Orthopedics
Article-Type of This Article
Retrospective Study
Open-Access Policy of This Article
This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
World J Orthop. Jan 18, 2024; 15(1): 39-44 Published online Jan 18, 2024. doi: 10.5312/wjo.v15.i1.39
Acetabular cup size trends in total hip arthroplasty
Daniel Patrick McKenna, Alex Price, Timothy McAleese, Darren Dahly, Paul McKenna, May Cleary
Daniel Patrick McKenna, Alex Price, Timothy McAleese, Paul McKenna, May Cleary, Department of Trauma and Orthopaedics, University Hospital Waterford, Waterford X91 ER8E, Ireland
Darren Dahly, Department of Epidemiology and Public Health, University College Cork, Cork T12 XF62, Ireland
Author contributions: All of the aforementioned authors contributed to this article; the study concept and design was devised by McKenna P and Cleary M; data collection was performed by McKenna DP and Price A; data analysis was completed by Dahly D; write up was completed by Mckenna DP with edits and proof reading provided by McAleese T, McKenna P and Cleary M.
Institutional review board statement: This study was classified as a service evaluation. In keeping with local guidelines and practice it did not require formal institutional board review.
Informed consent statement: Consent was not sought from subjects given its anonymised and retrospective nature.
Conflict-of-interest statement: The authors have no conflicts of interest to declare.
Data sharing statement: The dataset and statistical analysis information can be made available by the corresponding author upon request to danielmckenna21@rcsi.com. Consent was not sought from subjects given its anonymised and retrospective nature.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Daniel Patrick McKenna, MBChB, Surgeon, Department of Trauma and Orthopaedics, University Hospital Waterford, Dunmore Road, Waterford X91 ER8E, Ireland. danielmckenna21@rcsi.com
Received: October 22, 2023 Peer-review started: October 22, 2023 First decision: November 29, 2023 Revised: December 4, 2023 Accepted: December 27, 2023 Article in press: December 27, 2023 Published online: January 18, 2024 Processing time: 85 Days and 14.8 Hours
ARTICLE HIGHLIGHTS
Research background
To the authors knowledge this is the first study examining total hip arthoplasty experience and the relationship with acetabular cup size. Other facets of arthroplasty learning are documented however the trend towards ever decreasing cup sizes has not been previously described in the literature.
Research motivation
The motivation for this study was derived from noting a trend towards smaller acetabular cup sizes by one of the arthroplasty surgeons in our institution. We wanted to investigate if this observation was in fact correct and if so identify the underlying reasons.
Research objectives
The main objective was to record acetabular cup size used against time. This was completed by means of chart review. Future research by means of a prospective trial would benefit from standardization in cup size used.
Research methods
The log books from our elective theaters were cross checked with the national hip database. Acetabular cup sizes used were recorded for each surgeon. Logistic regression was then used to assess the trend against time.
Research results
We found experience in hip arthroplasty predicts an ever-decreasing acetabular cup size. The main unresolved question is why does this trend exists? This retrospective study also highlights that the trend for males appears to be more pronounced. This finding was unexpected and again the exact reason for this can only be speculated at this stage.
Research conclusions
This study proposes that even despite being fully trained in hip arthroplasty, a trend exists to ever decreasing acetabular cup sizes for arthroplasty surgeons.
Research perspectives
Future research should be targeted at investigating if these smaller acetabular cups result in improved clinical outcomes and also at the underlying reasons for this trend.
