Influence of a valgus knee brace on muscle activation and co-contraction in patients with medial knee osteoarthritis

2013 ◽  
Vol 23 (2) ◽  
pp. 490-500 ◽  
Author(s):  
Cynthia H. Fantini Pagani ◽  
Steffen Willwacher ◽  
Barbara Kleis ◽  
Gert-Peter Brüggemann
Keyword(s):  
Knee Osteoarthritis ◽  
Muscle Activation ◽  
Valgus Knee ◽  
Knee Brace ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis

Orthoses versus gait retraining: Immediate response in improving physical performance measures in healthy and medial knee osteoarthritic adults

2020 ◽  
Vol 234 (7) ◽  
pp. 749-757
Author(s):  
Saad Jawaid Khan ◽  
Soobia Saad Khan ◽  
Juliana Usman ◽  
Abdul Halim Mokhtar ◽  
Noor Azuan Abu Osman
Keyword(s):  
Knee Osteoarthritis ◽  
Physical Function ◽  
Physical Performance ◽  
Performance Measures ◽  
Repeated Measures ◽  
Valgus Knee ◽  
Walk Test ◽  
Gait Retraining ◽  
Knee Brace ◽  
Medial Knee

The conservative techniques of treating knee osteoarthritis (kOA) include wearing orthoses such as knee braces and laterally wedged insoles and applying gait modification techniques such as toe-in gait and toe-out gait. This study aimed at assessing the immediate effects of these techniques in improving physical function of healthy and kOA participants. Five Osteoarthritis Research Society International (OARSI) recommended performance-based tests were randomly applied to measure physical function: (1) 30-second chair stand test (30CST), (2) 40-m (4 × 10) fast-paced walk test (40FPW), (3) stair climb test (SCT), (4) timed up and go test (TUGT) and (5) 6-minute walk test (6MWT) during a single-visit on 20 healthy and 20 kOA patients (age: 59.5 ± 7.33 and 61.5 ± 8.63 years, BMI: 69.95 ± 9.86 and 70.45 ± 8.80 kg/m2). The interventions included natural gait, toe-out gait, toe-in gait, laterally wedged insoles and knee brace. Analysis was performed through repeated-measures ANOVA and independent sample t-test. 30CST and TUGT showed no significant differences for the five test conditions ( p > 0.05). Toe-out showed profound effects via pairwise comparison in impairing the physical function while knee brace improved it during 40FPW, SCT and 6MWT. In general, all the tested conservative techniques except laterally wedged insoles had immediate effects on physical performance measures in both healthy and medial knee osteoarthritis participants. The valgus knee brace improved the parameters the most, while toe-out gait impaired them the most. Future studies can develop strategies for improving gait retraining methods on the basis of issues identified by this study.

scholarly journals The 2- and 8-week effects of decompressive brace use in people with medial compartment knee osteoarthritis

2015 ◽  
Vol 40 (4) ◽  
pp. 447-453 ◽  
Author(s):  
Eric M Lamberg ◽  
Robert Streb ◽  
Marc Werner ◽  
Ian Kremenic ◽  
James Penna
Keyword(s):  
Knee Osteoarthritis ◽  
Repeated Measures ◽  
Knee Adduction Moment ◽  
Knee Brace ◽  
Knee Motion ◽  
Noninvasive Treatment ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis ◽  
Peak Knee ◽  
Second Peak

Background: Knee osteoarthritis is a prevalent disease. Unloading the affected compartment using a brace is a treatment option. Objectives: To determine whether a decompressive knee brace alters loading in medial knee osteoarthritis following 2 and 8 weeks of use. Study design: Within subjects; pre- and post-testing. Methods: A total of 15 individuals with medial knee osteoarthritis attended four sessions: baseline, fitting, 2 weeks after fitting (post), and 8 weeks after fitting (final). A gait analysis was performed at baseline (without knee brace), post and final. Knee adduction impulse, first and second peak knee adduction moment, knee motion, and walking velocity were calculated. Participants also recorded hours and steps taken while wearing the brace. Results: On average, the brace was worn for more than 6 h/day. Through use of repeated-measures analysis of variance, it was determined that the knee adduction impulse and second peak knee adduction moment were reduced ( p < 0.05) at post and final compared to baseline (36% and 34% reduction in knee adduction impulse, 26% reduction in second peak knee adduction moment for post and final, respectively). Furthermore, participants walked faster with increased knee motion during stance. Conclusion: The studied decompressive brace was effective in reducing potentially detrimental forces at the knee—knee adduction impulse and second peak knee adduction moment during the stance phase of gait. Clinical relevance The data from this study suggest that use of a medial unloading brace can reduce potentially detrimental adduction moments at the knee. Clinicians should use this evidence to advocate for use of this noninvasive treatment for people presenting with medial knee osteoarthritis.

Valgus knee bracing for medial knee osteoarthritis and varus malalignment: a pilot study

2021 ◽  
Vol 29 ◽  
pp. S173-S174
Author(s):  
M. Hall ◽  
S. Starkey ◽  
R.S. Hinman ◽  
L.E. Diamond ◽  
G.K. Lenton ◽  
...  
Keyword(s):  
Pilot Study ◽  
Knee Osteoarthritis ◽  
Valgus Knee ◽  
Varus Malalignment ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis

scholarly journals Clinical effectiveness and safety of a distraction-rotation knee brace for medial knee osteoarthritis

2015 ◽  
Vol 58 (3) ◽  
pp. 126-131 ◽  
Author(s):  
P. Ornetti ◽  
C. Fortunet ◽  
C. Morisset ◽  
V. Gremeaux ◽  
J.F. Maillefert ◽  
...  
Keyword(s):  
Knee Osteoarthritis ◽  
Clinical Effectiveness ◽  
Knee Brace ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis

scholarly journals Personalization improves the biomechanical efficacy of foot progression angle modifications in individuals with medial knee osteoarthritis

2020 ◽  
Author(s):  
Scott D Uhlrich ◽  
Julie A Kolesar ◽  
Łukasz Kidziński ◽  
Melissa A Boswell ◽  
Amy Silder ◽  
...  
Keyword(s):  
Knee Osteoarthritis ◽  
Center Of Pressure ◽  
Knee Adduction Moment ◽  
Abduction Angle ◽  
Valgus Knee ◽  
Lasso Regression ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis ◽  
Foot Progression Angle ◽  
Peak Knee

Abstract Objectives The goal of this study was to evaluate the importance of personalization when selecting foot progression angle modifications that aim to reduce the peak knee adduction moment in individuals with medial knee osteoarthritis. Design One hundred seven individuals with medial knee osteoarthritis walked on an instrumented treadmill with biofeedback instructing them to toe-in and toe-out by 5° and 10° relative to their self-selected foot progression angle. We selected individuals’ personalized foot progression angle as the modification that maximally reduced their larger knee adduction moment peak. Additionally, we used lasso regression to identify which secondary changes in kinematics made a 10° toe-in gait modification more effective at reducing the first knee adduction moment peak. Results Sixty-six percent of individuals reduced their larger knee adduction moment peak by at least 5% with a personalized foot progression angle modification, which is more than (p<0.001) the 54% and 23% of individuals who reduced it with a uniformly-assigned 10° toe-in or toe-out modification, respectively. When toeing-in, greater reductions in the first knee adduction moment peak were related to an increased frontal-plane tibia angle (knee more medial than ankle), a more valgus knee abduction angle, reduced contralateral pelvic drop, and a more medialized center of pressure in the foot reference frame. Conclusions Personalization increases the proportion of individuals with medial knee osteoarthritis who may benefit from modification of their foot progression angle.

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