Comparison of gait kinetics in total and unicondylar knee replacement surgery

S. Miller, A. Agarwal, W. B. Haddon, L. Johnston, G. Arnold, W. Wang, R. J. Abboud

Research output: Contribution to journalArticle

1 Citation (Scopus)
47 Downloads (Pure)

Abstract

Introduction: The aim of this study was to compare kinetical data from gait analysis of patients who have undergone total and uni-condylar knee replacement.

Materials and methods: Thirteen patients with unilateral total knee arthroplasty (TKA) and 13 unicondylar knee arthroplasty (UKA), were included, all performed by the same surgeon more than one year prior. The Vicon gait analysis system was used. Statistical power was calculated using SPSS.

Results: No significant difference was found in the spatiotemporal parameters of gait and survival years of the knee prosthesis between the two groups. The UKA group was found to have significantly larger moments than the TKA group in knee adduction on the operated side and knee flexion moment on the unoperated side during the loading phase. The maximum and minimum sagittal plane moments of the operated sides in the TKA group were significantly lower than the unoperated side. The difference was most significant at pre-swing. The maximum and minimum moments on the operated sides in the UKA group were significantly lower for the knee flexion and adduction moments when compared with the unoperated side and were most prevalent during the loading phase.

Conclusions: These results are relevant in terms of prosthesis wear. The TKA knees had smaller magnitude moments than the UKA knees in the sagittal and coronal planes. This could explain the higher revision rates for UKA. In both groups, the non-operated knees had significantly larger moments than the operated knees, which implies that after unilateral knee replacement of either type, the non-operated knee is being put under greater stress.

Original languageEnglish
Pages (from-to)267-274
Number of pages8
JournalAnnals of the Royal College of Surgeons of England
Volume100
Issue number4
Early online date27 Feb 2018
DOIs
Publication statusPublished - 4 Apr 2018

Fingerprint

Knee Replacement Arthroplasties
Gait
Knee
Knee Prosthesis
Prostheses and Implants

Keywords

  • Gait analysis
  • LCS mobile bearing
  • Oxford knee
  • Unilateral knee arthroplasty

Cite this

Miller, S. ; Agarwal, A. ; Haddon, W. B. ; Johnston, L. ; Arnold, G. ; Wang, W. ; Abboud, R. J. / Comparison of gait kinetics in total and unicondylar knee replacement surgery. In: Annals of the Royal College of Surgeons of England. 2018 ; Vol. 100, No. 4. pp. 267-274.
@article{b728467580134eb586f4ce313e459701,
title = "Comparison of gait kinetics in total and unicondylar knee replacement surgery",
abstract = "Introduction: The aim of this study was to compare kinetical data from gait analysis of patients who have undergone total and uni-condylar knee replacement.Materials and methods: Thirteen patients with unilateral total knee arthroplasty (TKA) and 13 unicondylar knee arthroplasty (UKA), were included, all performed by the same surgeon more than one year prior. The Vicon gait analysis system was used. Statistical power was calculated using SPSS.Results: No significant difference was found in the spatiotemporal parameters of gait and survival years of the knee prosthesis between the two groups. The UKA group was found to have significantly larger moments than the TKA group in knee adduction on the operated side and knee flexion moment on the unoperated side during the loading phase. The maximum and minimum sagittal plane moments of the operated sides in the TKA group were significantly lower than the unoperated side. The difference was most significant at pre-swing. The maximum and minimum moments on the operated sides in the UKA group were significantly lower for the knee flexion and adduction moments when compared with the unoperated side and were most prevalent during the loading phase.Conclusions: These results are relevant in terms of prosthesis wear. The TKA knees had smaller magnitude moments than the UKA knees in the sagittal and coronal planes. This could explain the higher revision rates for UKA. In both groups, the non-operated knees had significantly larger moments than the operated knees, which implies that after unilateral knee replacement of either type, the non-operated knee is being put under greater stress.",
keywords = "Gait analysis, LCS mobile bearing, Oxford knee, Unilateral knee arthroplasty",
author = "S. Miller and A. Agarwal and Haddon, {W. B.} and L. Johnston and G. Arnold and W. Wang and Abboud, {R. J.}",
note = "No funding info",
year = "2018",
month = "4",
day = "4",
doi = "10.1308/rcsann.2017.0226",
language = "English",
volume = "100",
pages = "267--274",
journal = "Annals of the Royal College of Surgeons of England",
issn = "0035-8843",
publisher = "Royal College of Surgeons of England",
number = "4",

}

Comparison of gait kinetics in total and unicondylar knee replacement surgery. / Miller, S.; Agarwal, A.; Haddon, W. B.; Johnston, L.; Arnold, G.; Wang, W.; Abboud, R. J.

In: Annals of the Royal College of Surgeons of England, Vol. 100, No. 4, 04.04.2018, p. 267-274.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Comparison of gait kinetics in total and unicondylar knee replacement surgery

AU - Miller, S.

AU - Agarwal, A.

AU - Haddon, W. B.

AU - Johnston, L.

AU - Arnold, G.

AU - Wang, W.

AU - Abboud, R. J.

N1 - No funding info

PY - 2018/4/4

Y1 - 2018/4/4

N2 - Introduction: The aim of this study was to compare kinetical data from gait analysis of patients who have undergone total and uni-condylar knee replacement.Materials and methods: Thirteen patients with unilateral total knee arthroplasty (TKA) and 13 unicondylar knee arthroplasty (UKA), were included, all performed by the same surgeon more than one year prior. The Vicon gait analysis system was used. Statistical power was calculated using SPSS.Results: No significant difference was found in the spatiotemporal parameters of gait and survival years of the knee prosthesis between the two groups. The UKA group was found to have significantly larger moments than the TKA group in knee adduction on the operated side and knee flexion moment on the unoperated side during the loading phase. The maximum and minimum sagittal plane moments of the operated sides in the TKA group were significantly lower than the unoperated side. The difference was most significant at pre-swing. The maximum and minimum moments on the operated sides in the UKA group were significantly lower for the knee flexion and adduction moments when compared with the unoperated side and were most prevalent during the loading phase.Conclusions: These results are relevant in terms of prosthesis wear. The TKA knees had smaller magnitude moments than the UKA knees in the sagittal and coronal planes. This could explain the higher revision rates for UKA. In both groups, the non-operated knees had significantly larger moments than the operated knees, which implies that after unilateral knee replacement of either type, the non-operated knee is being put under greater stress.

AB - Introduction: The aim of this study was to compare kinetical data from gait analysis of patients who have undergone total and uni-condylar knee replacement.Materials and methods: Thirteen patients with unilateral total knee arthroplasty (TKA) and 13 unicondylar knee arthroplasty (UKA), were included, all performed by the same surgeon more than one year prior. The Vicon gait analysis system was used. Statistical power was calculated using SPSS.Results: No significant difference was found in the spatiotemporal parameters of gait and survival years of the knee prosthesis between the two groups. The UKA group was found to have significantly larger moments than the TKA group in knee adduction on the operated side and knee flexion moment on the unoperated side during the loading phase. The maximum and minimum sagittal plane moments of the operated sides in the TKA group were significantly lower than the unoperated side. The difference was most significant at pre-swing. The maximum and minimum moments on the operated sides in the UKA group were significantly lower for the knee flexion and adduction moments when compared with the unoperated side and were most prevalent during the loading phase.Conclusions: These results are relevant in terms of prosthesis wear. The TKA knees had smaller magnitude moments than the UKA knees in the sagittal and coronal planes. This could explain the higher revision rates for UKA. In both groups, the non-operated knees had significantly larger moments than the operated knees, which implies that after unilateral knee replacement of either type, the non-operated knee is being put under greater stress.

KW - Gait analysis

KW - LCS mobile bearing

KW - Oxford knee

KW - Unilateral knee arthroplasty

U2 - 10.1308/rcsann.2017.0226

DO - 10.1308/rcsann.2017.0226

M3 - Article

VL - 100

SP - 267

EP - 274

JO - Annals of the Royal College of Surgeons of England

JF - Annals of the Royal College of Surgeons of England

SN - 0035-8843

IS - 4

ER -