5-year gait analysis as a secondary outcome of a fixed bearing robotic assisted versus mobile bearing manual UKA RCT

Matthew Banger, Philip Rowe, Lindsay Millar, Mark Blyth, Angus Maclean, Bryn Jones, Iona Donnelly

Research output: Contribution to journalConference Contribution

Abstract

Total knee arthroplasty (TKA) procedures have recognised differences in knee kinematics and kinetics from healthy knees. This study reports on the less documented knee kinematics and kinetics of uni-compartmental knee arthroplasty (UKA) patients during walking as a secondary outcome measure of a RCT between a fixed bearing UKA robotic procedure versus a mobile bearing UKA manual procedure.
Three dimensional, instrumented, gait analysis was performed 5 years after 49 medial osteoarthritis UKA patients received surgery. 27 were randomised to receive a robotic assisted UKA and 22 to receive a manual implant surgery.
The robotic assisted group showed a significant increased range of motion in stance during walking. 59% of the robotic assisted group achieved a bi-phasic sagittal knee moment, in comparison of 50% of the manual group. Significantly higher peak values of the varus knee and internal rotation moments were measured for the robotic assisted group during early and late section of the gait cycle, respectively. This indicates that larger normalised forces are applied through the knee during flat ground walking in the robotic assisted group.
The robotic assisted group showed biomechanical benefits over the manual group for walking tasks. Poor fixation outcomes are avoided in patients with normal knee moments.

Fingerprint

Bearings (structural)
Gait analysis
Arthroplasty
Robotics
Surgery
Kinematics
Kinetics

Keywords

  • total knee arthroplasty
  • knee kinematics
  • uni-compartmental knee arthroplasty
  • implant surgery

Cite this

@article{55c48bb5415b41bfa2a51eab241b2088,
title = "5-year gait analysis as a secondary outcome of a fixed bearing robotic assisted versus mobile bearing manual UKA RCT",
abstract = "Total knee arthroplasty (TKA) procedures have recognised differences in knee kinematics and kinetics from healthy knees. This study reports on the less documented knee kinematics and kinetics of uni-compartmental knee arthroplasty (UKA) patients during walking as a secondary outcome measure of a RCT between a fixed bearing UKA robotic procedure versus a mobile bearing UKA manual procedure.Three dimensional, instrumented, gait analysis was performed 5 years after 49 medial osteoarthritis UKA patients received surgery. 27 were randomised to receive a robotic assisted UKA and 22 to receive a manual implant surgery.The robotic assisted group showed a significant increased range of motion in stance during walking. 59{\%} of the robotic assisted group achieved a bi-phasic sagittal knee moment, in comparison of 50{\%} of the manual group. Significantly higher peak values of the varus knee and internal rotation moments were measured for the robotic assisted group during early and late section of the gait cycle, respectively. This indicates that larger normalised forces are applied through the knee during flat ground walking in the robotic assisted group.The robotic assisted group showed biomechanical benefits over the manual group for walking tasks. Poor fixation outcomes are avoided in patients with normal knee moments.",
keywords = "total knee arthroplasty, knee kinematics, uni-compartmental knee arthroplasty, implant surgery",
author = "Matthew Banger and Philip Rowe and Lindsay Millar and Mark Blyth and Angus Maclean and Bryn Jones and Iona Donnelly",
year = "2018",
month = "7",
day = "12",
doi = "10.29007/47r1",
language = "English",
volume = "2",
pages = "1--5",
journal = "EPiC Series in Health Sciences",
issn = "2398-5305",

}

5-year gait analysis as a secondary outcome of a fixed bearing robotic assisted versus mobile bearing manual UKA RCT. / Banger, Matthew; Rowe, Philip; Millar, Lindsay; Blyth, Mark; Maclean, Angus; Jones, Bryn; Donnelly, Iona.

In: EPiC Series in Health Sciences, Vol. 2, 12.07.2018, p. 1-5.

Research output: Contribution to journalConference Contribution

TY - JOUR

T1 - 5-year gait analysis as a secondary outcome of a fixed bearing robotic assisted versus mobile bearing manual UKA RCT

AU - Banger,Matthew

AU - Rowe,Philip

AU - Millar,Lindsay

AU - Blyth,Mark

AU - Maclean,Angus

AU - Jones,Bryn

AU - Donnelly,Iona

PY - 2018/7/12

Y1 - 2018/7/12

N2 - Total knee arthroplasty (TKA) procedures have recognised differences in knee kinematics and kinetics from healthy knees. This study reports on the less documented knee kinematics and kinetics of uni-compartmental knee arthroplasty (UKA) patients during walking as a secondary outcome measure of a RCT between a fixed bearing UKA robotic procedure versus a mobile bearing UKA manual procedure.Three dimensional, instrumented, gait analysis was performed 5 years after 49 medial osteoarthritis UKA patients received surgery. 27 were randomised to receive a robotic assisted UKA and 22 to receive a manual implant surgery.The robotic assisted group showed a significant increased range of motion in stance during walking. 59% of the robotic assisted group achieved a bi-phasic sagittal knee moment, in comparison of 50% of the manual group. Significantly higher peak values of the varus knee and internal rotation moments were measured for the robotic assisted group during early and late section of the gait cycle, respectively. This indicates that larger normalised forces are applied through the knee during flat ground walking in the robotic assisted group.The robotic assisted group showed biomechanical benefits over the manual group for walking tasks. Poor fixation outcomes are avoided in patients with normal knee moments.

AB - Total knee arthroplasty (TKA) procedures have recognised differences in knee kinematics and kinetics from healthy knees. This study reports on the less documented knee kinematics and kinetics of uni-compartmental knee arthroplasty (UKA) patients during walking as a secondary outcome measure of a RCT between a fixed bearing UKA robotic procedure versus a mobile bearing UKA manual procedure.Three dimensional, instrumented, gait analysis was performed 5 years after 49 medial osteoarthritis UKA patients received surgery. 27 were randomised to receive a robotic assisted UKA and 22 to receive a manual implant surgery.The robotic assisted group showed a significant increased range of motion in stance during walking. 59% of the robotic assisted group achieved a bi-phasic sagittal knee moment, in comparison of 50% of the manual group. Significantly higher peak values of the varus knee and internal rotation moments were measured for the robotic assisted group during early and late section of the gait cycle, respectively. This indicates that larger normalised forces are applied through the knee during flat ground walking in the robotic assisted group.The robotic assisted group showed biomechanical benefits over the manual group for walking tasks. Poor fixation outcomes are avoided in patients with normal knee moments.

KW - total knee arthroplasty

KW - knee kinematics

KW - uni-compartmental knee arthroplasty

KW - implant surgery

UR - https://easychair.org/publications/paper/vBCW

U2 - 10.29007/47r1

DO - 10.29007/47r1

M3 - Conference Contribution

VL - 2

SP - 1

EP - 5

JO - EPiC Series in Health Sciences

T2 - EPiC Series in Health Sciences

JF - EPiC Series in Health Sciences

SN - 2398-5305

ER -