Browsing by Author "Holmes, Gareth"

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    Augmented reality assisted orthopaedic surgery.
    (Stellenbosch : Stellenbosch University, 2018-03) Holmes, Gareth; Van der Merwe, Johan; Van den Heever, David Jacobus; Stellenbosch University. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering.
    ENGLISH SUMMARY: The aim of this study was to investigate the clinical e cacy and feasibility of an application of augmented reality assisted orthopaedic surgery (ARAOS) technology that focuses on supporting and enhancing current best practices in orthopaedic surgery. Through consultation with a representative from the Advanced Orthopaedic Training Centre at Tygerberg Hospital, wrist replacement surgery was chosen as the clinical problem on which to focus. A work ow aimed at providing maximum bene t for these types of procedures was conceptualised which involved making use of the two surgically removed bones to predict the remaining geometry by incorporating a statistical shape model into a shape estimation process. A simulated procedure based around one aspect of wrist replacement surgery was designed which allowed for a comparison to be made between using conventional navigational methods and that of using AR guidance to assist with surgical navigation. The results from this experiment indicate marginally inferior accuracy compared to the more conventional uoroscopic guidance. However, a reduction in procedural time, and a relatively short learning curve (intuitiveness) was observed when using AR guidance. Furthermore, with AR navigational assistance, both the patient and the surgeon are not exposed to harmful ionising radiation sources. In conclusion, it is the author's opinion that ARAOS technology appears to show clinical e cacy and feasibility for use in the operating room with potential to support and enhance current best practises in orthopaedic surgery while remaining a ordable and potentially more intuitive than other forms of navigational assistance.