High-speed x-ray fluoroscopy for the evaluation of dynamic shoulder function in vivo
Osteoarthritis (OA) is the primary condition leading to total joint replacement surgery of the shoulder. Abnormal joint loading plays a major role in the degenerative process of OA, and has been attributed to shoulder trauma, age-related muscle-tendon pathology including rotator cuff tears, and neuromuscular impairment such as stroke. Muscle forces contribute substantially to joint contact forces; however, the roles of the shoulder muscles in generating loads at the glenohumeral joint are not well understood. This is because there is no method available for measuring muscle forces non-invasively. The aim of this project will be to develop an accurate three-dimensional deformable finite-element model of the human shoulder to calculate the contact pressures and stresses produced at the glenohumeral joint during activities of daily living. By combining subject-specific motion data (bi-plane x-ray fluoroscopy and optical motion capture data) with medical imaging (Magnetic Resonance Imaging) and computational modelling, joint-contact mechanics will be non-invasively quantified in vivo.
Leader: David Ackland
Staff: Peter Lee
Collaborators: St Vincent's Hospital, O'Brien Institute
Biomedical Engineering,Mechanical Engineering
Convergence of engineering and IT with the life sciences
biomechanics; biomedical engineering; magnetic resonance imaging MRI; musculoskeletal modelling; physiotherapy