Differences in same vs. different surgeon performing conversion UKA to TKA

Introduction: Conversion surgery from UKA to TKA remains a challenge due to scarring, implant/cement removal, and loss of boney landmarks. Due to this challenge, conversion surgery may be best suited for a high volume or arthroplasty trained surgeon. The aim of this study is to identify if there are...

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Main Authors: Andrew D. Lachance, Carter Whittemore, Alexander Edelstein, Shaya Shahsavarani, Mason Stilwell, Jeffrey Lutton
Format: Article
Language:English
Published: Elsevier 2025-04-01
Series:Journal of Orthopaedic Reports
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Online Access:http://www.sciencedirect.com/science/article/pii/S2773157X2400242X
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author Andrew D. Lachance
Carter Whittemore
Alexander Edelstein
Shaya Shahsavarani
Mason Stilwell
Jeffrey Lutton
author_facet Andrew D. Lachance
Carter Whittemore
Alexander Edelstein
Shaya Shahsavarani
Mason Stilwell
Jeffrey Lutton
author_sort Andrew D. Lachance
collection DOAJ
description Introduction: Conversion surgery from UKA to TKA remains a challenge due to scarring, implant/cement removal, and loss of boney landmarks. Due to this challenge, conversion surgery may be best suited for a high volume or arthroplasty trained surgeon. The aim of this study is to identify if there are differences in outcomes between the same and different surgeons performing UKA and conversion TKA. Methods: A retrospective chart review was performed on patients undergoing conversion UKA to TKA over a 10-year period at a single institution. Data extracted included surgical technique, reason for UKA failure, range of motion (ROM) at 1 year, need for augments and utilization of revision components. Results: 52 patients (53 knees) with a UKA converted to a TKA were divided into whether their conversion surgery was performed by the same (n = 19) or different surgeons (n = 34). There was no significant difference in complication rates (P = 0.255), MUA rates (P = 0.255), flexion (P = 0.812) or extension (P = 0.136) at one year post op. The use of augments in revision cases were higher for the same surgeon (P = 0.032) while the average poly size used was found to be significantly lower between the same surgeon performing the revision (P = 0.026). Conclusion: Conversion UKA to TKA by the same versus different surgeon's yield good results. This is likely in part due to experienced arthroplasty surgeons performing these conversion surgeries. However, there were differences in polyethene size and requirements in augments which suggests some differences in bony conservation and surgical technique between surgeons during conversion TKA.
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spelling doaj-art-5494a4aa458447ea8bb97995299e1f432025-08-20T03:31:24ZengElsevierJournal of Orthopaedic Reports2773-157X2025-04-014110054710.1016/j.jorep.2024.100547Differences in same vs. different surgeon performing conversion UKA to TKAAndrew D. Lachance0Carter Whittemore1 Alexander Edelstein2Shaya Shahsavarani3Mason Stilwell4Jeffrey Lutton5Corresponding author. Robert Packer Hospital 1 Guthrie Sq, Sayre, PA, 18840, USA.; Department of Orthopaedic Surgery, Guthrie Clinic, Sayre, PA, USADepartment of Orthopaedic Surgery, Guthrie Clinic, Sayre, PA, USADepartment of Orthopaedic Surgery, Guthrie Clinic, Sayre, PA, USADepartment of Orthopaedic Surgery, Guthrie Clinic, Sayre, PA, USADepartment of Orthopaedic Surgery, Guthrie Clinic, Sayre, PA, USADepartment of Orthopaedic Surgery, Guthrie Clinic, Sayre, PA, USAIntroduction: Conversion surgery from UKA to TKA remains a challenge due to scarring, implant/cement removal, and loss of boney landmarks. Due to this challenge, conversion surgery may be best suited for a high volume or arthroplasty trained surgeon. The aim of this study is to identify if there are differences in outcomes between the same and different surgeons performing UKA and conversion TKA. Methods: A retrospective chart review was performed on patients undergoing conversion UKA to TKA over a 10-year period at a single institution. Data extracted included surgical technique, reason for UKA failure, range of motion (ROM) at 1 year, need for augments and utilization of revision components. Results: 52 patients (53 knees) with a UKA converted to a TKA were divided into whether their conversion surgery was performed by the same (n = 19) or different surgeons (n = 34). There was no significant difference in complication rates (P = 0.255), MUA rates (P = 0.255), flexion (P = 0.812) or extension (P = 0.136) at one year post op. The use of augments in revision cases were higher for the same surgeon (P = 0.032) while the average poly size used was found to be significantly lower between the same surgeon performing the revision (P = 0.026). Conclusion: Conversion UKA to TKA by the same versus different surgeon's yield good results. This is likely in part due to experienced arthroplasty surgeons performing these conversion surgeries. However, there were differences in polyethene size and requirements in augments which suggests some differences in bony conservation and surgical technique between surgeons during conversion TKA.http://www.sciencedirect.com/science/article/pii/S2773157X2400242XTotal knee arthroplastyConversionUKAPrimary
spellingShingle Andrew D. Lachance
Carter Whittemore
Alexander Edelstein
Shaya Shahsavarani
Mason Stilwell
Jeffrey Lutton
Differences in same vs. different surgeon performing conversion UKA to TKA
Journal of Orthopaedic Reports
Total knee arthroplasty
Conversion
UKA
Primary
title Differences in same vs. different surgeon performing conversion UKA to TKA
title_full Differences in same vs. different surgeon performing conversion UKA to TKA
title_fullStr Differences in same vs. different surgeon performing conversion UKA to TKA
title_full_unstemmed Differences in same vs. different surgeon performing conversion UKA to TKA
title_short Differences in same vs. different surgeon performing conversion UKA to TKA
title_sort differences in same vs different surgeon performing conversion uka to tka
topic Total knee arthroplasty
Conversion
UKA
Primary
url http://www.sciencedirect.com/science/article/pii/S2773157X2400242X
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