Introduction of FIAC to increase reliability of semi-weight bearing foam impression foot casting method

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Introduction of FIAC to increase reliability of semi-weight bearing foam impression foot casting method

 

Author: Leung, Wing-kin
Title: Introduction of FIAC to increase reliability of semi-weight bearing foam impression foot casting method
Degree: M.Sc.
Year: 2008
Subject: Hong Kong Polytechnic University -- Dissertations.
Fasciae (Anatomy) -- Inflammation -- Treatment.
Foot -- Diseases -- Treatment.
Diabetes -- Complications.
Diabetic neuropathies.
Department: Dept. of Health Technology and Informatics
Pages: ix, 69 leaves : ill. ; 30 cm.
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b2303573
URI: http://theses.lib.polyu.edu.hk/handle/200/3493
Abstract: Appliance of foot orthosis is commonly regarded as one kind of management for many disorders, such as diabetic foot, plantar fasciitis and abnormal pronation. There are different casting methods and casting posture being used to capture individual foot shape for making different kind of foot orthosis. Foam impression method with semi-weight bearing posture is characterized by its low cost and time saving features. However, Laughton et al. (2002) commended it is not reliable by showing the low value of interator reliability. In this study, we've developed a prototype instrument, Foam Impression Alignment Control (FIAC), applying counteract force at the first and fifth metatarsal heads, bilateral malleoli and the knee, aiming to control the foot alignment during semi-weight bearing foam impression foot casting method. 15 subjects (30 feet) have been cast for their foot shape by 2 orthotists. ICCs (intrarater reliability and interrator reliability) and the RMS of the forefoot width, heel width, and forefoot-rearfoot relation are calculated to compare with the result done by Laughton et al (2002). A higher ICCs value of forefoot with and heel width in both interrator and intrarator reliability show higher value when using the FIAC. Though ICCs value of forefoot-rearfoot relation is small, the small value of RMS show the usage of FIAC is reliable during foot casting with semi-weight bearing foam impression foot method.

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