Computer-based periaxial rotation measurement for aligning fractured femur fragments: Method and preliminary results

Ofer Ron, Leo Joskowicz, Ariel Simkin, Charles Milgrom

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

We describe a new computer-based method for periaxial rotation measurement of healthy and fractured femurs during closed femoral fracture reduction surgery from CT. The method provides a comparative quantitative measure to align the distal and proximal femur fragments based on periaxial rotation. We define periaxial rotation in terms of patient-specific bone features and describe an algorithm for automatically extracting these features from the CT. The algorthm extracts condyle landmarks and neck axis of the healthy bone, determines its periaxial rotation, and extrapolates this data, assuming mirror symmetry between the healthy and the fractured bone, to measure periaxial rotation between the fractured fragments. Unlike existing techniques, our method requires minimal user intervention. We applied the method to a patient data set and simulated a reduction based on the anteversion measurements with satisfactory results.

Original languageAmerican English
Title of host publicationMedical Image Computing and Computer-Assisted Intervention - MICCAI 2001 - 4th International Conference, Proceedings
EditorsWiro J. Niessen, Max A. Viergever
PublisherSpringer Verlag
Pages17-23
Number of pages7
ISBN (Print)3540426973, 9783540454687
DOIs
StatePublished - 2001
Event4th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2001 - Utrecht, Netherlands
Duration: 14 Oct 200117 Oct 2001

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume2208
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference4th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2001
Country/TerritoryNetherlands
CityUtrecht
Period14/10/0117/10/01

Bibliographical note

Publisher Copyright:
© Springer-Verlag Berlin Heidelberg 2001.

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