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Automatic Fracture Reduction
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 1613293
Author(s) Albrecht, Thomas; Vetter, Thomas
Author(s) at UniBasel Vetter, Thomas
Albrecht, Thomas
Year 2012
Title Automatic Fracture Reduction
Journal Lecture notes in computer science
Volume 7599
Number 2
Pages / Article-Number 22-9
Keywords KINEMATIC ANALYSIS, ROBOTICS, EXTERNAL FIXATOR, FRACTURE REDUCTION
Abstract

We present a method to automatically reposition the fragments of a broken bone based on surface meshes segmented from CT scans. The result of this virtual fracture reduction is intended to be used as an operation plan for a medical procedure. Particularly in minimally invasive surgery like intramedullary nailing, the correct repositioning of bone fragments is not always apparent or visible without an operation plan. We propose to achieve automatic fracture reduction by fitting the bone fragments to an intact reference bone mesh with a modified Iterative Closest Point (ICP) algorithm. A suitable reference could be the same patient’s contra-lateral bone. In the absence of a CT scan of this bone, we propose to use a statistical shape model as a reference. The shape model is automatically adapted to match the anatomy of the broken bone, apart from the bone’s length, which has to be correctly initialized. Our experiments show that we can limit the rotational alignment error to below 5 degrees, compared to 15 degrees in current medical practice.

Publisher Springer
ISSN/ISBN 0302-9743
edoc-URL http://edoc.unibas.ch/dok/A6094009
Full Text on edoc No
Digital Object Identifier DOI 10.1007/978-3-642-33463-4_3
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/8205363
ISI-Number INSPEC:12987136
Document type (ISI) Conference Paper
 
   

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