Stability of the glenohumeral joint after anatomic and reverse total shoulder arthroplasty
Anatomic total shoulder arthroplasty (TSA) is the established treatment for end-stage osteoarthritis of the glenohumeral joint; however, instability of the glenohumeral joint remains one of the most common and debilitating complications of this procedure. Reverse total shoulder arthroplasty (RSA) represents three-quarters of all shoulder arthroplasty procedures, and is known to increase the leverage and tension in the deltoid, recruit more of its fibres during abduction and flexion, and improve range of upper limb motion and glenohumeral joint stability. Dislocation and instability has been shown to account for up to 44% of all complications associated with RSA; however, its etiology, which is thought to involve prior surgery, bone deficiency, rotator cuff tears, and mechanical factors, has not been quantified to date. The objective of this project is to develop and validate computational and in vitro models of the native shoulder and the shoulder after TSA and RSA, and to use these models to evaluate joint geometry, muscle loading, and stability of the glenohumeral joint after arthroplasty. The influence of prosthetic component selection and intra-operative placement will also be explored.

This project is part of an Australian Research Council Industry Transformation Training Centre in Medical Implant Technologies. The PhD candidate will have close collaboration with orthopaedic, 3D modelling and 3D printing companies within this consortium. It will involve an international industry placement of up to one year, and present strong opportunities to develop close relationships with orthopaedic and other med-tech industry.

The preferred candidate will have a degree in Mechanical Engineering, Biomedical Engineering, or a related discipline.
Experience in finite element modelling is essential.
Experience in programming and musculoskeletal modelling is preferred but not essential.

For more information, please contact Dr David Ackland: dackland@unimelb.edu.au