Design, Implementation and Testing of a Novel Prototype Orthotic Knee Joint with Two Degrees of Freedom in a Patient with Medial Knee Osteoarthritis
Journal Title: Sultan Qaboos University Medical Journal - Year 2018, Vol 1, Issue 4
Abstract
Knee braces are a conservative treatment option for patients with knee osteoarthritis (KOA). However, no commercially available orthotic knee joint currently reflects natural knee movements. A prototype orthotic knee joint with two degrees of freedom (DOF) in the sagittal and transverse planes was developed to more closely simulate the natural motion of the knee joint. The prototype was tested on a male subject with medial KOA during a sit-to-stand task. The efficacy of the transverse plane DOF was assessed by comparing the limb-orthosis interaction force when the transverse plane was locked to mimic a one-DOF setting versus when it was unlocked. Unlocking the transverse plane eliminated the 45-Newton shearing force produced with the one-DOF setting at wide angles of flexion. The two-DOF orthotic knee joint prototype demonstrated greater conformity to natural knee movements, allowing the wearer to better tolerate bracing-related difficulties.
Authors and Affiliations
Siamak Aghajani-Fesharaki, Farzam Farahmand, Hassan Saeedi, Ehsan Abdollahy
Keywords
Related Articles
- EP ID EP37483
- DOI http://dx.doi.org/10.18295/squmj.2018.18.04.016
- Views 361
- Downloads 0
Prevalence and Levels of Depression Among Parents of Children with Cancer in Basrah, Iraq
Objectives: Cancer in a family member can be a major source of psychological disorders, especially for the parents of children diagnosed with cancer. Tis study aimed to determine the prevalence and levels of depression...
Pharmacologic Prophylaxis and Treatment of Venous Tromboembolism after Knee Arthroplasty
Objective: Te objective of this study was to evaluate the efficacy of unfractionated heparin, warfarin and low molecular weight heparins (LMWH) used for the prevention of venous thromboembolism in arthroplastic surgery...
Aortoesophageal Fistula caused by a Foreign Body
Amyand’s Hernia Study of four cases and literature review
Te presence of the appendix in an inguinal hernial sac is described as Amyand’s hernia. It is a rare entity which presents mostly at the exploration of the inguinal canal. Te appendix may be apparently normal or have...
Proceedings of Sultan Qaboos University Clinical-Pathological Conferences 2009–2010