Effects of Lateral Wedge Insole on Static and Dynamic Balance in Patients with Moderate Medial Knee Osteoarthritis

BACKGROUND AND OBJECTIVE: Knee osteoarthritis (OA) is associated with diminished joint proprioception, balance deficits and increased risk of falls. Patients with medial knee osteoarthritis are at higher risk of balance deficits and falling due to the development of secondary varus deformity. Theref...

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Autores principales:	F Sayadnejad, F Esfandiarpour, A Rezazadeh, M Amin, F Derisfard, MJ Shaterzadeh
Formato:	article
Lenguaje:	EN FA
Publicado:	Babol University of Medical Sciences 2019
Materias:	foot orthoses osteoarthritis knee postural balance genu varum Medicine R Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/75d8eca37ca346d5a922ef74eb624458
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spelling	oai:doaj.org-article:75d8eca37ca346d5a922ef74eb6244582021-11-10T08:30:36ZEffects of Lateral Wedge Insole on Static and Dynamic Balance in Patients with Moderate Medial Knee Osteoarthritis1561-41072251-7170https://doaj.org/article/75d8eca37ca346d5a922ef74eb6244582019-12-01T00:00:00Zhttp://jbums.org/article-1-8387-en.htmlhttps://doaj.org/toc/1561-4107https://doaj.org/toc/2251-7170BACKGROUND AND OBJECTIVE: Knee osteoarthritis (OA) is associated with diminished joint proprioception, balance deficits and increased risk of falls. Patients with medial knee osteoarthritis are at higher risk of balance deficits and falling due to the development of secondary varus deformity. Therefore, it is of great clinical importance to identify the treatment methods that could improve balance in knee OA. The purpose of this study was to evaluate the effects of Lateral Wedge Insole (LWI) on static and dynamic balance in patients with moderate medial knee osteoarthritis. METHODS: Thirty patients with moderate medial knee OA participated in this semi-experimental interventional study. Patients were recruited from orthopedic and rheumatology clinics of the university. For each patient, the static and dynamic balance were assessed in two conditions including wearing shoes with flat insole and wearing shoes with lateral wedge insole, using a Prokin stabilometer. The balance variables were the anteroposterior and mediolateral velocity and standard deviation of the center of pressure (COP) displacement, and total stability indices. Patients performed two familiarization trials, then, three actual trials with at least 30 s interval for each test. FINDINGS: Wearing LWIs resulted in significant decreases in the anteroposterior (static:1.78mm/s, dynamic:6.63mm/s) and mediolateral velocity of COP (static:1.53mm/s, dynamic:5.58mm/s) in compression to wearing shoes with flat insole (p<0.001). The anteroposterior (static:1.04 mm, dynamic:1.57mm) and mediolateral SD of the COP (static:1.58mm, dynamic:2.02mm) were also decreased after using LWIs (p<0.007). Except for the anteroposterior stability index, other balance indices were also significantly improved (p<0.05). CONCLUSION: Our findings suggest that using a LWI improve static and dynamic balance in patients with moderate medial knee OA.F SayadnejadF EsfandiarpourA RezazadehM AminF DerisfardMJ ShaterzadehBabol University of Medical Sciencesarticlefoot orthosesosteoarthritiskneepostural balancegenu varumMedicineRMedicine (General)R5-920ENFAMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, Vol 21, Iss 1, Pp 259-265 (2019)
institution	DOAJ
collection	DOAJ
language	EN FA
topic	foot orthoses osteoarthritis knee postural balance genu varum Medicine R Medicine (General) R5-920
spellingShingle	foot orthoses osteoarthritis knee postural balance genu varum Medicine R Medicine (General) R5-920 F Sayadnejad F Esfandiarpour A Rezazadeh M Amin F Derisfard MJ Shaterzadeh Effects of Lateral Wedge Insole on Static and Dynamic Balance in Patients with Moderate Medial Knee Osteoarthritis
description	BACKGROUND AND OBJECTIVE: Knee osteoarthritis (OA) is associated with diminished joint proprioception, balance deficits and increased risk of falls. Patients with medial knee osteoarthritis are at higher risk of balance deficits and falling due to the development of secondary varus deformity. Therefore, it is of great clinical importance to identify the treatment methods that could improve balance in knee OA. The purpose of this study was to evaluate the effects of Lateral Wedge Insole (LWI) on static and dynamic balance in patients with moderate medial knee osteoarthritis. METHODS: Thirty patients with moderate medial knee OA participated in this semi-experimental interventional study. Patients were recruited from orthopedic and rheumatology clinics of the university. For each patient, the static and dynamic balance were assessed in two conditions including wearing shoes with flat insole and wearing shoes with lateral wedge insole, using a Prokin stabilometer. The balance variables were the anteroposterior and mediolateral velocity and standard deviation of the center of pressure (COP) displacement, and total stability indices. Patients performed two familiarization trials, then, three actual trials with at least 30 s interval for each test. FINDINGS: Wearing LWIs resulted in significant decreases in the anteroposterior (static:1.78mm/s, dynamic:6.63mm/s) and mediolateral velocity of COP (static:1.53mm/s, dynamic:5.58mm/s) in compression to wearing shoes with flat insole (p<0.001). The anteroposterior (static:1.04 mm, dynamic:1.57mm) and mediolateral SD of the COP (static:1.58mm, dynamic:2.02mm) were also decreased after using LWIs (p<0.007). Except for the anteroposterior stability index, other balance indices were also significantly improved (p<0.05). CONCLUSION: Our findings suggest that using a LWI improve static and dynamic balance in patients with moderate medial knee OA.
format	article
author	F Sayadnejad F Esfandiarpour A Rezazadeh M Amin F Derisfard MJ Shaterzadeh
author_facet	F Sayadnejad F Esfandiarpour A Rezazadeh M Amin F Derisfard MJ Shaterzadeh
author_sort	F Sayadnejad
title	Effects of Lateral Wedge Insole on Static and Dynamic Balance in Patients with Moderate Medial Knee Osteoarthritis
title_short	Effects of Lateral Wedge Insole on Static and Dynamic Balance in Patients with Moderate Medial Knee Osteoarthritis
title_full	Effects of Lateral Wedge Insole on Static and Dynamic Balance in Patients with Moderate Medial Knee Osteoarthritis
title_fullStr	Effects of Lateral Wedge Insole on Static and Dynamic Balance in Patients with Moderate Medial Knee Osteoarthritis
title_full_unstemmed	Effects of Lateral Wedge Insole on Static and Dynamic Balance in Patients with Moderate Medial Knee Osteoarthritis
title_sort	effects of lateral wedge insole on static and dynamic balance in patients with moderate medial knee osteoarthritis
publisher	Babol University of Medical Sciences
publishDate	2019
url	https://doaj.org/article/75d8eca37ca346d5a922ef74eb624458
work_keys_str_mv	AT fsayadnejad effectsoflateralwedgeinsoleonstaticanddynamicbalanceinpatientswithmoderatemedialkneeosteoarthritis AT fesfandiarpour effectsoflateralwedgeinsoleonstaticanddynamicbalanceinpatientswithmoderatemedialkneeosteoarthritis AT arezazadeh effectsoflateralwedgeinsoleonstaticanddynamicbalanceinpatientswithmoderatemedialkneeosteoarthritis AT mamin effectsoflateralwedgeinsoleonstaticanddynamicbalanceinpatientswithmoderatemedialkneeosteoarthritis AT fderisfard effectsoflateralwedgeinsoleonstaticanddynamicbalanceinpatientswithmoderatemedialkneeosteoarthritis AT mjshaterzadeh effectsoflateralwedgeinsoleonstaticanddynamicbalanceinpatientswithmoderatemedialkneeosteoarthritis
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Effects of Lateral Wedge Insole on Static and Dynamic Balance in Patients with Moderate Medial Knee Osteoarthritis

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