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POTENTIAL OF INTERACTIVE ASSISTANCE ROBOTS TO SUPPORT SURGERY IN ORTHOPAEDICS



Abstract

The first generation of surgical robots which has been used in orthopaedics was characterized by automatic performance of certain tasks like milling of bone cavities or planes. These systems have not been successful as their application and operation suffered from a number of unacceptable drawbacks. Presently computer assisted surgery is dominated by surgical navigation systems where position and orientation of manually guided instruments are visualized on a computer screen as an overlay to the picture of the anatomical structure.

However, new concepts of surgical robots make the benefits of using robotic systems more evident. Such robots do not operate automatically but are designed as assistance systems which support the surgeon by interactive operating modes. Compared to manual instrument guidance in pure navigation they offer several additional advantages some of which are particularly valuable to support less or minimal invasive operating techniques. No problems due to tremor or unintentional slipping of the tool. Precise drilling or reaming by stable tool guidance, surgery will be exact and reproducible to achieve pre-operatively planned targets, to overcome the ergonomic problems, such as difficult hand-eye-coordination and frequent changes of viewing direction. The application of interactive assistance robots in orthopaedic and trauma surgery is illustrated by describing exemplary procedures.

Address for Correspondence: Mr K Deep, General Secretary CAOS UK, 82 Windmill Road, Gillingham, Kent ME7 5NX UK. E Mail: caosuk@gmail.com