Effect of Equipping an Unloading Knee Orthosis with Vibrators on Biomechanical and Clinical Parameters in People with Medial Knee Osteoarthritis

Background:Patients suffering from mild-to-moderate medial compartment knee osteoarthritis may be treated with an unloader knee orthosis. However, compliance has been shown to be an issue with such devices.Objectives:The aim of this study was to identify the effects of a new design of knee unloader orthosis on specific gait parameters in patients with mild-to-moderate medial knee osteoarthritis.Methods:The gait of seven patients was assessed in two conditions: without an orthosis and when wearing a new design of unloader knee orthosis. Gait analysis was performed to determine alterations to the adduction moment, speed of walking, step length, cadence and knee sagittal plane range of motion during ambulation for the two test conditions.Results:The knee adduction moment was significantly reduced ( p = 0.001), and the speed of walking significantly increased ( p < 0.001) when wearing the orthosis. However, a reduction in knee range of motion ( p = 0.002) and an increase in step length ( p < 0.001) were observed with the orthosis donned. Cadence was not significantly altered ( p = 0.504).Conclusion:The use of a new design of unloader knee orthosis as a conservative treatment approach for patients with mild-to-moderate medial compartment osteoarthritis appears warranted.Clinical relevanceVarious conservative modalities have been used to reduce pain and improve function in medial compartment osteoarthritis. A new design of an unloader knee orthosis has been developed and is shown to have immediate benefits in patients with mild medial knee osteoarthritis.

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Efficacy of a New Ankle Foot Orthosis on Knee Adduction Moment and Clinical Parameters in Individuals with Medial Knee Osteoarthritis

10.26226/morressier.614ca2d987a68d83cb5d5dc9 ◽

2021 ◽

Author(s):

Kourosh Barati ◽

Alireza Shamsoddini

Keyword(s):

Knee Osteoarthritis ◽

Knee Adduction Moment ◽

Clinical Parameters ◽

Medial Knee ◽

Medial Knee Osteoarthritis ◽

Ankle Foot Orthosis ◽

Foot Orthosis

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Responses to gait retraining using pressure-based auditory feedback for medial knee osteoarthritis

Osteoarthritis and Cartilage ◽

10.1016/j.joca.2021.02.111 ◽

2021 ◽

Vol 29 ◽

pp. S81-S82

Author(s):

J. He ◽

C. Ferrigno ◽

N. Shakoor ◽

M.A. Wimmer

Keyword(s):

Knee Osteoarthritis ◽

Auditory Feedback ◽

Gait Retraining ◽

Medial Knee ◽

Medial Knee Osteoarthritis

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A comparison between laterally wedged insoles and ankle-foot orthoses for the treatment of medial osteoarthritis of the knee: A randomized cross-over trial

Clinical Rehabilitation ◽

10.1177/0269215521993636 ◽

2021 ◽

pp. 026921552199363

Author(s):

Martin Schwarze ◽

Leonie P Bartsch ◽

Julia Block ◽

Merkur Alimusaj ◽

Ayham Jaber ◽

...

Keyword(s):

Knee Osteoarthritis ◽

Controlled Trial ◽

Oxford Knee Score ◽

Knee Adduction Moment ◽

Osteoarthritis Of The Knee ◽

Knee Score ◽

Medial Knee ◽

Medial Knee Osteoarthritis ◽

Patient Reported ◽

Angular Impulse

Objective: To compare biomechanical and clinical outcome of laterally wedged insoles (LWI) and an ankle-foot orthosis (AFO) in patients with medial knee osteoarthritis. Design: Single-centre, block-randomized, cross-over controlled trial. Setting: Outpatient clinic. Subjects: About 39 patients with symptomatic medial knee osteoarthritis. Interventions: Patients started with either LWI or AFO, determined randomly, and six weeks later changed to the alternative. Main measures: Change in the 1st maximum of external knee adduction moment (eKAM) was assessed with gait analysis. Additional outcomes were other kinetic and kinematic changes and the patient-reported outcomes EQ-5D-5L, Oxford Knee Score (OKS), American Knee Society Clinical Rating System (AKSS), Hannover Functional Ability Questionnaire – Osteoarthritis and knee pain. Results: Mean age (SD) of the study population was 58 (8) years, mean BMI 30 (5). Both aids significantly improved OKS (LWI P = 0.003, AFO P = 0.001), AKSS Knee Score (LWI P = 0.01, AFO P = 0.004) and EQ-5D-5L Index (LWI P = 0.001, AFO P = 0.002). AFO reduced the 1st maximum of eKAM by 18% ( P < 0.001). The LWI reduced both maxima by 6% ( P = 0.02, P = 0.03). Both AFO and LWI reduced the knee adduction angular impulse (KAAI) by 11% ( P < 0.001) and 5% ( P = 0.05) respectively. The eKAM (1st maximum) and KAAI reduction was significantly larger with AFO than with LWI ( P = 0.001, P = 0.004). Conclusions: AFO reduces medial knee load more than LWI. Nevertheless, no clinical superiority of either of the two aids could be shown.

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