Abstract
We are developing an image-guided robot-based system to assist orthopaedic surgeons in performing distal locking of long bone intramedullary nails. The system consists of a bone-mounted miniature robot fitted with a drill guide that provides rigid mechanical guidance for hand-held drilling of the distal screws’ pilot holes. The robot is automatically positioned so that the drill guide and nail distal locking axes coincide using a single fronto-parallel fluoroscopic X-ray. This paper describes new methods for accurate and robust drill guide and nail hole localization and registration and reports the results of our in-vitro system accuracy experiments. Tests of 17 runs show a mean angular error of 1.3o (std = 0.4o) between the computed drill guide axes and the actual locking holes axes, and a mean 3.0mm error (std = 1.1mm) in the entry and exit drill point, which is adequate for successfully locking the nail.
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Yaniv, Z., Joskowicz, L. (2004). Robot-Assisted Distal Locking of Long Bone Intramedullary Nails: Localization, Registration, and In Vitro Experiments. In: Barillot, C., Haynor, D.R., Hellier, P. (eds) Medical Image Computing and Computer-Assisted Intervention – MICCAI 2004. MICCAI 2004. Lecture Notes in Computer Science, vol 3217. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30136-3_8
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DOI: https://doi.org/10.1007/978-3-540-30136-3_8
Publisher Name: Springer, Berlin, Heidelberg
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