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

Prevalence of Urinary Incontinence and Probable Risk Factors in a Sample of Kurdish Women

Objectives: Te most common manifestation of pelvic floor dysfunction is urinary incontinence (UI) which affects 15–50% of adult women depending on the age and risk factors of the population studied. Te aim of this...

Laparoscopic surgery at Sultan Qaboos University Hospita

Laparoscopic surgery, which gained prominence in the late 1980s, became an established surgical practice in Sultan Qaboos University Hospital (SQUH) in 1992. Drawing on available literature and the authors’ own experi...

General Anaesthesia Protocols for Patients Undergoing Electroconvulsive Therapy Retrospective analysis of 504 sessions over a fve-year period at a tertiary care hospital in Oman

Objectives: Tis study aimed to review general anaesthesia protocols for patients undergoing electroconvulsive therapy (ECT) at a tertiary care hospital in Oman, particularly with regards to clinical profle, potential d...

Nasopharyngeal Salivary Gland Anlage Tumour A rare cause of neonatal respiratory distress

A salivary gland anlage tumour (SGAT) is a very rare type of benign tumour that usually presents in early infancy with respiratory distress which is exacerbated upon feeding. We report a full-term male neonate who was...

Customised, Individualised Treatment of Metastatic Non-Small-Cell Lung Carcinoma (NSCLC)

A series of phase II and randomised phase III trials in Asia and Europe have confrmed recently that advanced stage non-small-cell lung carcinoma patients with adenocarcinoma subtypes harbouring specifc mutations when s...

Download PDF file
  • EP ID EP37483
  • DOI http://dx.doi.org/10.18295/squmj.2018.18.04.016
  • Views 366
  • Downloads 0

How To Cite

Siamak Aghajani-Fesharaki, Farzam Farahmand, Hassan Saeedi, Ehsan Abdollahy (2018). Design, Implementation and Testing of a Novel Prototype Orthotic Knee Joint with Two Degrees of Freedom in a Patient with Medial Knee Osteoarthritis. Sultan Qaboos University Medical Journal, 1(4), -. https://www.europub.co.uk/articles/-A-37483