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Lateral wedge insoles

Mehmet E Tezcan, Berna Goker, Roy Lidtke, Joel A Block
BACKGROUND: Lateral wedge insoles have been used for the treatment of medial knee osteoarthritis (OA) and have been shown to reduce loading of the medial compartment of the knee. However, as the entire lower extremity acts as a single kinetic chain, altering the biomechanics of the knee may also have significant effects at the ankles or hips. We aimed to evaluate the effects of lateral wedge orthotics on ankle and hip joints, compared to neutral orthotics, by assessing the changes in joint space width (JSW) during 36 months of continuous use...
September 21, 2016: Gait & Posture
Yoann Dessery, Étienne Belzile, Sylvie Turmel, Philippe Corbeil
BACKGROUND: There is contradictory evidence regarding whether the addition of medial arch supports to laterally wedged insoles reduces knee adduction moment, improves comfort, and reduces knee pain during the late stance phase of gait. OBJECTIVES: To verify if such effects occur in participants with medial knee osteoarthritis. STUDY DESIGN: Randomized single-blinded study. METHODS: Gait analysis was performed on 18 patients affected by medial knee osteoarthritis...
August 23, 2016: Prosthetics and Orthotics International
Tomonori Sawada, Kazuki Tokuda, Kenji Tanimoto, Yoshitaka Iwamoto, Yuta Ogata, Masaya Anan, Makoto Takahashi, Nobuhiro Kito, Koichi Shinkoda
Lateral wedge insoles (LWIs) reduce the peak external knee adduction moment (KAM). However, the efficacy of LWIs is limited in certain individuals for whom they fail to decrease KAM. Possible explanations for a lack of desired LWI response are variations in foot alignments. The purpose of this study was to evaluate whether the immediate biomechanical effects of LWIs depend on individual foot alignments during gait. Fifteen healthy adults participated in this study. Their feet were categorized as normal, pronated, and supinated using the foot posture index...
September 2016: Gait & Posture
Bilge Yılmaz, Serdar Kesikburun, Ozlem Köroğlu, Evren Yaşar, Ahmet Salim Göktepe, Kamil Yazıcıoğlu
OBJECTIVE: The aim of this study is to assess the effect of 5 and 10° lateral-wedge insoles on unilateral lower extremity load carrying line in patients with medial knee osteoarthritis using the L.A.S.A.R. posture alignment system. PATIENTS AND METHODS: Twenty subjects (10 females and 10 males, mean age 67.7 ± 5.4 years (range: 58-78) with bilateral medial knee osteoarthritis were included in the study. The laser line projected on the person by the L.A.S.A.R...
August 2016: Acta Orthopaedica et Traumatologica Turcica
Ru-Lan Hsieh, Wen-Chung Lee
We compared the short-term efficacy of rigid versus soft lateral wedge arch support (LWAS) insoles for patients with knee osteoarthritis (OA), as assessed using the International Classification of Functioning, Disability and Health (ICF) system, through a prospective, double-blind, randomized controlled trial.Participants who fulfilled the combined radiographic and clinical criteria for knee OA, as defined by the American College of Rheumatology, were randomly prescribed 1 pair of rigid or soft LWAS insoles...
July 2016: Medicine (Baltimore)
Rana S Hinman, Tim V Wrigley, Ben R Metcalf, Penny K Campbell, Kade L Paterson, David J Hunter, Jessica Kasza, Andrew Forbes, Kim L Bennell
Background: Appropriate footwear is recommended for self-management of knee osteoarthritis. Shoes that reduce harmful knee loads are available, but symptomatic effects are uncertain. Objective: To evaluate the efficacy of unloading shoes in alleviating knee osteoarthritis symptoms. Design: Participant- and assessor-blinded comparative effectiveness randomized, controlled trial. (Australian New Zealand Clinical Trials Registry: ACTRN12613000851763)...
September 20, 2016: Annals of Internal Medicine
Xianyi Zhang, Bo Li, Kaiyun Liang, Qiufeng Wan, Benedicte Vanwanseele
Conventional heel lift with a flat surface increases the risk of foot problems related to higher plantar pressure and decreased stability. In this study, an optimized design of in-shoe heel lifts developed to maintain the midfoot function was tested to investigate if the plantar pressure distribution was improved. The design was based on three dimensional foot plantar contour which was captured by an Infoot 3D scanning system while the heel was elevated by a heel wedge. To facilitate midfoot function, an arch support was designed to support the lateral longitudinal arch, while allowing functional movement of the medial longitudinal arch...
June 2016: Gait & Posture
Ken Tokunaga, Yuki Nakai, Ryo Matsumoto, Ryoji Kiyama, Masayuki Kawada, Akihiko Ohwatashi, Kiyohiro Fukudome, Tadasu Ohshige, Tetsuo Maeda
This study evaluated the effect of foot progression angle on the reduction in knee adduction moment caused by a lateral wedged insole during walking. Twenty healthy, young volunteers walked 10 m at their comfortable velocity wearing a lateral wedged insole or control flat insole in 3 foot progression angle conditions: natural, toe-out, and toe-in. A 3-dimensional rigid link model was used to calculate the external knee adduction moment, the moment arm of ground reaction force to knee joint center, and the reduction ratio of knee adduction moment and moment arm...
October 2016: Journal of Applied Biomechanics
Koya Mine, Takashi Nakayama, Steve Milanese, Karen Grimmer
BACKGROUND: Knee osteoarthritis is common. The evidence regarding the effectiveness of braces and orthoses for patients with knee osteoarthritis is inconclusive according to English-language literature. English-language reviews to date have not included Japanese-language studies. OBJECTIVES: This study aimed to collect and synthesise Japanese-language randomised controlled trials investigating the effectiveness of braces and orthoses for patients with knee osteoarthritis...
April 26, 2016: Prosthetics and Orthotics International
Ryan T Lewinson, Darren J Stefanyshyn
Wedged insoles are prescribed for medial knee osteoarthritis to reduce the knee adduction moment; however, it is currently not possible to predict which patients will in fact experience reduced moments. The purpose of this study was to identify a simple method using two-dimensional data for predicting the expected change in knee adduction moments with wedged insoles. Knee adduction moments during walking were determined for healthy individuals (n = 15) and individuals with medial knee osteoarthritis (n = 19) while wearing their own shoe without an insole (control), with a 6-mm medial wedge and with a 6-mm lateral wedge...
April 2016: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
Joshua T Weinhandl, Sarah E Sudheimer, Bonnie L Van Lunen, Kimberly Stewart, Matthew C Hoch
It is estimated that approximately 45% of the U.S. population will develop knee osteoarthritis, a disease that creates significant economic burdens in both direct and indirect costs. Laterally wedged insoles have been frequently recommended to reduce knee abduction moments and to manage knee osteoarthritis. However, it remains unknown whether the lateral wedge will reduce knee abduction moments over a prolonged period of time. Thus, the purposes of this study were to (1) examine the immediate effects of a laterally wedged insole in individuals normally aligned knees and (2) determine prolonged effects after the insole was worn for 1 week...
March 2016: Gait & Posture
Tomonori Sawada, Nobuhiro Kito, Masaki Yukimune, Kazuki Tokuda, Kenji Tanimoto, Masaya Anan, Makoto Takahashi, Koichi Shinkoda
[Purpose] Lateral wedge insoles reduce the peak external knee adduction moment and are advocated for patients with knee osteoarthritis. However, some patients demonstrate adverse biomechanical effects with treatment. In this study, we examined the immediate effects of lateral and medial wedge insoles under unilateral weight bearing. [Subjects and Methods] Thirty healthy young adults participated in this study. The subjects were assessed by using the foot posture index, and were divided into three groups: normal foot, pronated foot, and supinated foot groups...
January 2016: Journal of Physical Therapy Science
John B Arnold, Daniel X Wong, Richard K Jones, Catherine L Hill, Dominic Thewlis
OBJECTIVE: Lateral wedge insoles are intended to reduce biomechanical risk factors of medial knee osteoarthritis (OA) progression, such as increased knee joint load; however, there has been no definitive consensus on this topic. The aim of this systematic review and meta-analysis was to establish the within-subject effects of lateral wedge insoles on knee joint load in people with medial knee OA during walking. METHODS: Six databases were searched from inception until February 13, 2015...
July 2016: Arthritis Care & Research
J B Arnold
No abstract text is available yet for this article.
February 2016: Osteoarthritis and Cartilage
Satoshi Yamaguchi, Masako Kitamura, Tomohiro Ushikubo, Atsushi Murata, Ryuichiro Akagi, Takahisa Sasho
OBJECTIVE: Biomechanical effects of laterally wedged insoles are assessed by reduction in the knee adduction moment. However, the degree of reduction may vary depending on the reference frame with which it is calculated. The purpose of this study was to clarify the effect of reference frame on the reduction in the knee adduction moment by laterally wedged insoles. METHODS: Twenty-nine healthy participants performed gait trials with a laterally wedged insole and with a flat insole as a control...
2015: PloS One
Jun-Chao Guo, Li-Zhen Wang, Wei Chen, Cheng-Fei Du, Zhong-Jun Mo, Yu-Bo Fan
Orthopedic insole was important for partial foot amputation (PFA) to achieve foot balance and avoid foot deformity. The inapposite insole orthosis was thought to be one of the risk factors of reamputation for foot valgus patient, but biomechanical effects of internal tissues on valgus foot had not been clearly addressed. In this study, plantar pressure on heel and metatarsal regions of PFA was measured using F-Scan. The three-dimensional finite element (FE) model of partial foot evaluated different medial wedge angles (MWAs) (0...
2016: Computer Methods in Biomechanics and Biomedical Engineering
Yuki Uto, Tetsuo Maeda, Ryoji Kiyama, Masayuki Kawada, Ken Tokunaga, Akihiko Ohwatashi, Kiyohiro Fukudome, Tadasu Ohshige, Yoichi Yoshimoto, Kazunori Yone
The purpose of this study was to determine whether a lateral wedge insole reduces the external knee adduction moment during slope walking. Twenty young, healthy subjects participated in this study. Subjects walked up and down a slope using 2 different insoles: a control flat insole and a 7° lateral wedge insole. A three-dimensional motion analysis system and force plate were used to examine the knee adduction moment, the ankle valgus moment, and the moment arm of the ground reaction force to the knee joint center in the frontal plane...
December 2015: Journal of Applied Biomechanics
Ryan T Lewinson, J Preston Wiley, R Neil Humble, Jay T Worobets, Darren J Stefanyshyn
OBJECTIVE: Determine if a change in internal knee abduction angular impulse (KAAI) is related to pain reduction for runners with patellofemoral pain (PFP) by comparing lateral and medial wedge insole interventions, and increased KAAI and decreased KAAI groups. DESIGN: Randomized controlled clinical trial ( ID# NCT01332110). SETTING: Biomechanics laboratory and community. PATIENTS: Thirty-six runners with physician-diagnosed PFP enrolled in the trial, and 27 were analyzed...
2015: PloS One
Ryan T Lewinson, Jay T Worobets, Darren J Stefanyshyn
BACKGROUND: The external knee adduction moment (EKAM) is often studied in knee osteoarthritis research. This study compared EKAMs between two methods of calculation: a method that only requires ground reaction force and knee position data (i.e. lever-arm), and an inverse dynamics link-segment method. METHODS: Sixteen participants walked while wearing a control shoe with and without a six millimeter lateral wedge insole. Peak EKAMs between the lever-arm and inverse dynamics methods were compared for the control condition, and the %change in moment induced by the lateral wedge was compared between methods...
September 2015: Knee
Richard K Jones, Graham J Chapman, Matthew J Parkes, Laura Forsythe, David T Felson
Many conservative treatments exist for medial knee osteoarthritis (OA) which aims to reduce the external knee adduction moment (EKAM). The objective of this study was to determine the difference between different shoes and lateral wedge insoles on EKAM, knee adduction angular impulse (KAAI), external knee flexion moment, pain, and comfort when walking in individuals with medial knee OA. Seventy individuals with medial knee OA underwent three-dimensional walking gait analysis in five conditions (barefoot, control shoe, typical wedge, supported wedge, and mobility shoe) with pain and comfort recorded concurrently...
November 2015: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
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