Robotic-assisted Total Knee Arthroplasty Reduces Radiographic Outliers for Low-volume Total Knee Arthroplasty Surgeons

Background: Most studies evaluating robotic-assisted total knee arthroplasty (RA TKA) analyzed the advantages offered to high-volume surgeons. This study aims to determine if RA TKA improves radiographic or clinical outcomes for low-volume, non–arthroplasty-trained surgeons. Methods: Radiographic an...

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Main Authors: Connor Byrne, MD, Caleb Durst, BS, Kevin Rezzadeh, MD, Zachary Rockov, MD, Charles Moon, MD, Sean Rajaee, MD
Format: Article
Language:English
Published: Elsevier 2024-02-01
Series:Arthroplasty Today
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S235234412300208X
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author Connor Byrne, MD
Caleb Durst, BS
Kevin Rezzadeh, MD
Zachary Rockov, MD
Charles Moon, MD
Sean Rajaee, MD
author_facet Connor Byrne, MD
Caleb Durst, BS
Kevin Rezzadeh, MD
Zachary Rockov, MD
Charles Moon, MD
Sean Rajaee, MD
author_sort Connor Byrne, MD
collection DOAJ
description Background: Most studies evaluating robotic-assisted total knee arthroplasty (RA TKA) analyzed the advantages offered to high-volume surgeons. This study aims to determine if RA TKA improves radiographic or clinical outcomes for low-volume, non–arthroplasty-trained surgeons. Methods: Radiographic and early clinical outcomes of 19 RA TKAs and 41 conventional TKAs, all performed by a single, non–arthroplasty-trained orthopaedic surgeon, were compared. Radiographic outliers were based on surgeon targets and defined as tibial posterior slope outside of 0°-5°, tibial tray varus outside of 0°-3°, and the presence of notching. Clinical outcomes included inpatient narcotic usage, length of stay, range of motion, and Patient-Reported Outcome Measurement Information System scores. Results: There was a significant decrease in tibial slope outliers (RA TKA 0% vs non-RA TKA 22%, P = .024) and notching incidence (RA TKA 0% vs non-RA TKA 19.5%, P = .044) in the RA group. Tibial tray varus/valgus outliers trended lower in the RA TKA group (10.0% vs 26.8%, P = .189). Length of stay was significantly shorter in RA patients (48.0 hours [standard deviation: 25.5] vs 67.7 hours [34.3], P = .038). RA patients trended toward lower in postoperative inpatient total mean morphine equivalents usage (79.9 [89.2] vs 140.1 [169.3], P = .142) and inpatient mean morphine equivalents usage per day (30.36 [26.9] vs 45.6 [36.7], P = .105). There was no significant difference in Patient-Reported Outcome Measurement Information System scores or range of motion at first and second postoperative follow-up within 3 months. Conclusions: RA TKA reduced the incidence of radiographic outliers when compared to conventional TKA for a low-volume arthroplasty surgeon.
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spelling doaj.art-846863c0dac440278e94d80f1eee3ebd2024-02-15T05:24:24ZengElsevierArthroplasty Today2352-34412024-02-0125101303Robotic-assisted Total Knee Arthroplasty Reduces Radiographic Outliers for Low-volume Total Knee Arthroplasty SurgeonsConnor Byrne, MD0Caleb Durst, BS1Kevin Rezzadeh, MD2Zachary Rockov, MD3Charles Moon, MD4Sean Rajaee, MD5Corresponding author. 444 South San Vicente Boulevard, Beverly Hills, CA 90211, USA. Tel.: +1 925 451 6455.; Cedars Sinai, Los Angeles, CA, USACedars Sinai, Los Angeles, CA, USACedars Sinai, Los Angeles, CA, USACedars Sinai, Los Angeles, CA, USACedars Sinai, Los Angeles, CA, USACedars Sinai, Los Angeles, CA, USABackground: Most studies evaluating robotic-assisted total knee arthroplasty (RA TKA) analyzed the advantages offered to high-volume surgeons. This study aims to determine if RA TKA improves radiographic or clinical outcomes for low-volume, non–arthroplasty-trained surgeons. Methods: Radiographic and early clinical outcomes of 19 RA TKAs and 41 conventional TKAs, all performed by a single, non–arthroplasty-trained orthopaedic surgeon, were compared. Radiographic outliers were based on surgeon targets and defined as tibial posterior slope outside of 0°-5°, tibial tray varus outside of 0°-3°, and the presence of notching. Clinical outcomes included inpatient narcotic usage, length of stay, range of motion, and Patient-Reported Outcome Measurement Information System scores. Results: There was a significant decrease in tibial slope outliers (RA TKA 0% vs non-RA TKA 22%, P = .024) and notching incidence (RA TKA 0% vs non-RA TKA 19.5%, P = .044) in the RA group. Tibial tray varus/valgus outliers trended lower in the RA TKA group (10.0% vs 26.8%, P = .189). Length of stay was significantly shorter in RA patients (48.0 hours [standard deviation: 25.5] vs 67.7 hours [34.3], P = .038). RA patients trended toward lower in postoperative inpatient total mean morphine equivalents usage (79.9 [89.2] vs 140.1 [169.3], P = .142) and inpatient mean morphine equivalents usage per day (30.36 [26.9] vs 45.6 [36.7], P = .105). There was no significant difference in Patient-Reported Outcome Measurement Information System scores or range of motion at first and second postoperative follow-up within 3 months. Conclusions: RA TKA reduced the incidence of radiographic outliers when compared to conventional TKA for a low-volume arthroplasty surgeon.http://www.sciencedirect.com/science/article/pii/S235234412300208XRoboticPrimaryLow-volume
spellingShingle Connor Byrne, MD
Caleb Durst, BS
Kevin Rezzadeh, MD
Zachary Rockov, MD
Charles Moon, MD
Sean Rajaee, MD
Robotic-assisted Total Knee Arthroplasty Reduces Radiographic Outliers for Low-volume Total Knee Arthroplasty Surgeons
Arthroplasty Today
Robotic
Primary
Low-volume
title Robotic-assisted Total Knee Arthroplasty Reduces Radiographic Outliers for Low-volume Total Knee Arthroplasty Surgeons
title_full Robotic-assisted Total Knee Arthroplasty Reduces Radiographic Outliers for Low-volume Total Knee Arthroplasty Surgeons
title_fullStr Robotic-assisted Total Knee Arthroplasty Reduces Radiographic Outliers for Low-volume Total Knee Arthroplasty Surgeons
title_full_unstemmed Robotic-assisted Total Knee Arthroplasty Reduces Radiographic Outliers for Low-volume Total Knee Arthroplasty Surgeons
title_short Robotic-assisted Total Knee Arthroplasty Reduces Radiographic Outliers for Low-volume Total Knee Arthroplasty Surgeons
title_sort robotic assisted total knee arthroplasty reduces radiographic outliers for low volume total knee arthroplasty surgeons
topic Robotic
Primary
Low-volume
url http://www.sciencedirect.com/science/article/pii/S235234412300208X
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