Abstract
Purpose: The aim of this study was to evaluate weight-bearing distribution in patients with bilateral end-stage knee osteoarthritis (OA) and to clarify the gait parameters affecting the weight-bearing distribution during both standing and walking using gait analysis.
Methods: Twenty-five patients (averaged 71 years) with symptomatic bilateral end-stage medial knee OA participated in this study. They performed relaxed standing, placing one foot on a force plate and thereafter, level walking. First, knee resultant force was calculated on bilateral knees during standing. The knees in each patient were divided into Higher and Lower force side for the definition of dominant side limb. Second, gait parameters in each subject were compared between both sides.
Results: Each patient had large weight-bearing asymmetry, though passive range of motion, subjective pain level, femorotibial angle and radiographic disease severities were not significantly different between both sides. In standing, knees on Higher force side were significantly extended (11.2 ± 6.5°) than on Lower force side (14.4 ± 7.3°, P = 0.0086). Similarly, knees on Higher force side were also significantly extended at heel strike during gait. Besides, peak values of extension moment, knee adduction moment, knee adduction moment impulse and vertical force during gait were significantly greater on Higher force side.
Conclusions: Ability to extend the knee in standing was considered to be an essential factor to decide loading condition. It is clinically important to examine the ability to extend the knee in standing when considering loading asymmetry during gait in patients with bilateral knee OA.
Level of evidence: III.
| Original language | English |
|---|---|
| Pages (from-to) | 2608-2613 |
| Number of pages | 6 |
| Journal | Knee Surgery, Sports Traumatology, Arthroscopy |
| Volume | 22 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2014 Oct 21 |
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Keywords
- End-stage knee osteoarthritis
- Extension deficit
- Gait analysis
- Standing
- Weight-bearing distribution
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
- Surgery
- Medicine(all)
Cite this
Asymmetry of the knee extension deficit in standing affects weight-bearing distribution in patients with bilateral end-stage knee osteoarthritis. / Harato, Kengo; Nagura, Takeo; Matsumoto, Hideo; Otani, Toshiro; Toyama, Yoshiaki; Suda, Yasunori.
In: Knee Surgery, Sports Traumatology, Arthroscopy, Vol. 22, No. 11, 21.10.2014, p. 2608-2613.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Asymmetry of the knee extension deficit in standing affects weight-bearing distribution in patients with bilateral end-stage knee osteoarthritis
AU - Harato, Kengo
AU - Nagura, Takeo
AU - Matsumoto, Hideo
AU - Otani, Toshiro
AU - Toyama, Yoshiaki
AU - Suda, Yasunori
PY - 2014/10/21
Y1 - 2014/10/21
N2 - Purpose: The aim of this study was to evaluate weight-bearing distribution in patients with bilateral end-stage knee osteoarthritis (OA) and to clarify the gait parameters affecting the weight-bearing distribution during both standing and walking using gait analysis.Methods: Twenty-five patients (averaged 71 years) with symptomatic bilateral end-stage medial knee OA participated in this study. They performed relaxed standing, placing one foot on a force plate and thereafter, level walking. First, knee resultant force was calculated on bilateral knees during standing. The knees in each patient were divided into Higher and Lower force side for the definition of dominant side limb. Second, gait parameters in each subject were compared between both sides.Results: Each patient had large weight-bearing asymmetry, though passive range of motion, subjective pain level, femorotibial angle and radiographic disease severities were not significantly different between both sides. In standing, knees on Higher force side were significantly extended (11.2 ± 6.5°) than on Lower force side (14.4 ± 7.3°, P = 0.0086). Similarly, knees on Higher force side were also significantly extended at heel strike during gait. Besides, peak values of extension moment, knee adduction moment, knee adduction moment impulse and vertical force during gait were significantly greater on Higher force side.Conclusions: Ability to extend the knee in standing was considered to be an essential factor to decide loading condition. It is clinically important to examine the ability to extend the knee in standing when considering loading asymmetry during gait in patients with bilateral knee OA.Level of evidence: III.
AB - Purpose: The aim of this study was to evaluate weight-bearing distribution in patients with bilateral end-stage knee osteoarthritis (OA) and to clarify the gait parameters affecting the weight-bearing distribution during both standing and walking using gait analysis.Methods: Twenty-five patients (averaged 71 years) with symptomatic bilateral end-stage medial knee OA participated in this study. They performed relaxed standing, placing one foot on a force plate and thereafter, level walking. First, knee resultant force was calculated on bilateral knees during standing. The knees in each patient were divided into Higher and Lower force side for the definition of dominant side limb. Second, gait parameters in each subject were compared between both sides.Results: Each patient had large weight-bearing asymmetry, though passive range of motion, subjective pain level, femorotibial angle and radiographic disease severities were not significantly different between both sides. In standing, knees on Higher force side were significantly extended (11.2 ± 6.5°) than on Lower force side (14.4 ± 7.3°, P = 0.0086). Similarly, knees on Higher force side were also significantly extended at heel strike during gait. Besides, peak values of extension moment, knee adduction moment, knee adduction moment impulse and vertical force during gait were significantly greater on Higher force side.Conclusions: Ability to extend the knee in standing was considered to be an essential factor to decide loading condition. It is clinically important to examine the ability to extend the knee in standing when considering loading asymmetry during gait in patients with bilateral knee OA.Level of evidence: III.
KW - End-stage knee osteoarthritis
KW - Extension deficit
KW - Gait analysis
KW - Standing
KW - Weight-bearing distribution
UR - http://www.scopus.com/inward/record.url?scp=84919837933&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84919837933&partnerID=8YFLogxK
U2 - 10.1007/s00167-013-2442-y
DO - 10.1007/s00167-013-2442-y
M3 - Article
C2 - 23397422
AN - SCOPUS:84919837933
VL - 22
SP - 2608
EP - 2613
JO - Knee Surgery, Sports Traumatology, Arthroscopy
JF - Knee Surgery, Sports Traumatology, Arthroscopy
SN - 0942-2056
IS - 11
ER -