Design and Evaluation of Innovative Assisting Device for Knee Osteoarthritis

  • 郭 顯齊

Student thesis: Master's Thesis

Abstract

In aging society chronic diseases and physical function decline ratio gradually increases Researches has indicated that osteoarthritis is the most common among chronic diseases around the world The painful and disabling symptoms of knee osteoarthritis brings mental physical and economy burdens to patient and largely lowers quality of life Osteoarthritis usually occurs in weight bearing joints and mostly in medial knee joint since it bears most of the loading during gait For early osteoarthritis unloading and increase muscle strength through exercise is the most fundamental way Also use assisting devices while exercising can relief pain and increase willingness of patient or expand the duration However long-term use of assisting device may cause discomfort or even worse side effects Hence the purpose of this study includes (1) Develop an innovative assisting device that can reduce medial knee loading; (2) This device can relief knee pain caused by OA; (3) It will not restrict knee and peripheral muscle movement and thus increase comfort To design an innovative assisting device this research obtains design criterions through reviewing existing products and expert focus group According to these criterions design concepts are generated in co-design activity and converged into one final design with morphological charts Finally prototype are built according to final design As for evaluation experiment it is divided into three parts according to research purposes Objective evaluation uses image process to analyze gait data and calculates frontal plane lever arm magnitude as indirect assessment of medial to lateral knee loading Medial knee loading variations then analyzed with paired samples t-test As for subjective evaluation visual analogue scale is used to present pain intensity before and after using the device Pain intensity variation then analyzed with paired samples t-test Last VAS is also used in design criterion evaluation to present satisfaction scores The result of experiences shows this innovative assisting device can significantly reduce medial knee loading of both legs (p=0 003
Date of Award2017 Feb 3
Original languageEnglish
SupervisorFong-Gong Wu (Supervisor)

Cite this

Design and Evaluation of Innovative Assisting Device for Knee Osteoarthritis
顯齊, 郭. (Author). 2017 Feb 3

Student thesis: Master's Thesis