Robotic Assistance in Unicompartmental Knee Arthroplasty Results in Superior Early Functional Recovery and Is More Likely to Meet Patient Expectations

Robotic technology has reduced the errors of implant alignment in unicompartmental knee arthroplasty (UKA), but its impact on functional recovery after UKA is poorly defined. The purpose of this study was to compare early functional recovery, pain levels, and satisfaction in UKA performed with eithe...

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Main Authors: Meredith P. Crizer, Amer Haffar, Andrew Battenberg, Mikayla McGrath, Ryan Sutton, Jess H. Lonner
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Advances in Orthopedics
Online Access:http://dx.doi.org/10.1155/2021/4770960
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author Meredith P. Crizer
Amer Haffar
Andrew Battenberg
Mikayla McGrath
Ryan Sutton
Jess H. Lonner
author_facet Meredith P. Crizer
Amer Haffar
Andrew Battenberg
Mikayla McGrath
Ryan Sutton
Jess H. Lonner
author_sort Meredith P. Crizer
collection DOAJ
description Robotic technology has reduced the errors of implant alignment in unicompartmental knee arthroplasty (UKA), but its impact on functional recovery after UKA is poorly defined. The purpose of this study was to compare early functional recovery, pain levels, and satisfaction in UKA performed with either robotic assistance or conventional methods. A retrospective analysis was performed on 89 matched consecutive patients who underwent outpatient UKA by a single physician using either conventional instruments (n = 39) or robotic methods (n = 50), with otherwise identical perioperative protocols. Outcomes studied included Lower Extremity Functional Score (LEFS), new Knee Society Score (KSS), Knee Injury and Osteoarthritis Outcome Score for Joint Replacement (KOOS-JR.), VR/SF-12, Visual Analog Scale (VAS) pain scores, and perioperative opioid consumption. Patients in the robotic cohort had superior early functional outcomes, with greater LEFS (conventional = 23; robotic = 31) at 1 week post-op p=0.015 and KOOS-JR (conventional = 74; robotic = 81) at up to 6 months post-op p=0.037; these two values remained statistically significant after mixed-model regression analysis p=0.010;p=0.023, respectively. At 1 year post-op, expectations were more likely to be met in those who received robotic assistance p=0.06. No differences were reported with respect to postoperative opioid usage p=0.320, reoperations p=1.00, and complications p=0.628. Robotic-assisted UKA resulted in more rapid recovery and less early postoperative pain and were more likely to meet expectations than conventional UKA, although functional differences equilibrated by 1 year postoperatively. Further follow-up is necessary to determine if implant durability is impacted by robotics.
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spelling doaj-art-7146f4eac90344e99725febb6df167f02025-02-03T07:23:29ZengWileyAdvances in Orthopedics2090-34642090-34722021-01-01202110.1155/2021/47709604770960Robotic Assistance in Unicompartmental Knee Arthroplasty Results in Superior Early Functional Recovery and Is More Likely to Meet Patient ExpectationsMeredith P. Crizer0Amer Haffar1Andrew Battenberg2Mikayla McGrath3Ryan Sutton4Jess H. Lonner5Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USARothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USARothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USARothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USARothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USARothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USARobotic technology has reduced the errors of implant alignment in unicompartmental knee arthroplasty (UKA), but its impact on functional recovery after UKA is poorly defined. The purpose of this study was to compare early functional recovery, pain levels, and satisfaction in UKA performed with either robotic assistance or conventional methods. A retrospective analysis was performed on 89 matched consecutive patients who underwent outpatient UKA by a single physician using either conventional instruments (n = 39) or robotic methods (n = 50), with otherwise identical perioperative protocols. Outcomes studied included Lower Extremity Functional Score (LEFS), new Knee Society Score (KSS), Knee Injury and Osteoarthritis Outcome Score for Joint Replacement (KOOS-JR.), VR/SF-12, Visual Analog Scale (VAS) pain scores, and perioperative opioid consumption. Patients in the robotic cohort had superior early functional outcomes, with greater LEFS (conventional = 23; robotic = 31) at 1 week post-op p=0.015 and KOOS-JR (conventional = 74; robotic = 81) at up to 6 months post-op p=0.037; these two values remained statistically significant after mixed-model regression analysis p=0.010;p=0.023, respectively. At 1 year post-op, expectations were more likely to be met in those who received robotic assistance p=0.06. No differences were reported with respect to postoperative opioid usage p=0.320, reoperations p=1.00, and complications p=0.628. Robotic-assisted UKA resulted in more rapid recovery and less early postoperative pain and were more likely to meet expectations than conventional UKA, although functional differences equilibrated by 1 year postoperatively. Further follow-up is necessary to determine if implant durability is impacted by robotics.http://dx.doi.org/10.1155/2021/4770960
spellingShingle Meredith P. Crizer
Amer Haffar
Andrew Battenberg
Mikayla McGrath
Ryan Sutton
Jess H. Lonner
Robotic Assistance in Unicompartmental Knee Arthroplasty Results in Superior Early Functional Recovery and Is More Likely to Meet Patient Expectations
Advances in Orthopedics
title Robotic Assistance in Unicompartmental Knee Arthroplasty Results in Superior Early Functional Recovery and Is More Likely to Meet Patient Expectations
title_full Robotic Assistance in Unicompartmental Knee Arthroplasty Results in Superior Early Functional Recovery and Is More Likely to Meet Patient Expectations
title_fullStr Robotic Assistance in Unicompartmental Knee Arthroplasty Results in Superior Early Functional Recovery and Is More Likely to Meet Patient Expectations
title_full_unstemmed Robotic Assistance in Unicompartmental Knee Arthroplasty Results in Superior Early Functional Recovery and Is More Likely to Meet Patient Expectations
title_short Robotic Assistance in Unicompartmental Knee Arthroplasty Results in Superior Early Functional Recovery and Is More Likely to Meet Patient Expectations
title_sort robotic assistance in unicompartmental knee arthroplasty results in superior early functional recovery and is more likely to meet patient expectations
url http://dx.doi.org/10.1155/2021/4770960
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