At QUT with the Fellows and QUASR
A visit to Queensland University of Technology with the Fellows and the QUASR group.
Present were visiting orthopaedic surgeons and research staff, together with Ken Cutbush and Ashish Gupta, Brisbane Shoulder Fellowship Co-Directors.
What QUASR is
QUASR is the Queensland Unit for Advanced Shoulder Research, based at Queensland University of Technology. It brings shoulder surgeons together with engineers, biomechanists and research staff to study how the shoulder works and how shoulder operations and implants behave mechanically. Research of this kind is collaborative by necessity: the clinical questions come from the operating theatre and the clinic, while the equipment and the methods needed to answer them, such as testing rigs, motion capture and computer modelling, belong to the engineering side of a university.
Why fellows spend time in a research laboratory
A shoulder fellowship is a year of subspecialty training taken after a surgeon has already qualified as a specialist, and the operating lists and clinics are only part of it. Fellows attend research meetings and laboratory sessions as well, which is how they learn to turn a clinical impression into a question that can actually be tested, and how they come to understand what laboratory and registry evidence can and cannot establish. A surgeon who has spent time in a biomechanics laboratory tends to read the literature differently afterwards, because the limitations of each method are no longer abstract.
What laboratory work contributes to shoulder surgery
Forces inside a living shoulder cannot be measured directly, so questions about load, stability and implant position are studied on the bench. Cadaveric specimens are mounted in rigs that reproduce movement, instruments measure strain and displacement, motion capture records how the joint and the shoulder blade move together, and computer models built from scans allow a design or a technique to be varied and the effect calculated. The results indicate what is mechanically sound rather than predicting what will happen in any particular patient, and they feed into technique and implant design over time. Individual results vary.