Universität zu Köln

Yang, Peng-Fei, Sanno, Maximilian, Ganse, Bergita ORCID: 0000-0002-9512-2910, Koy, Timmo, Brueggemann, Gert-Peter, Mueller, Lars Peter and Rittweger, Joern (2014). In vivo application of an optical segment tracking approach for bone loading regimes recording in humans: A reliability study. Med. Eng. Phys., 36 (8). S. 1041 - 1047. OXFORD: ELSEVIER SCI LTD. ISSN 1873-4030

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Abstract

This paper demonstrates an optical segment tracking (OST) approach for assessing the in vivo bone loading regimes in humans. The relative movement between retro-reflective marker clusters affixed to the tibia cortex by bone screws was tracked and expressed as tibia loading regimes in terms of segment deformation. Stable in vivo fixation of bone screws was tested by assessing the resonance frequency of the screw-marker structure and the relative marker position changes after hopping and jumping. Tibia deformation was recorded during squatting exercises to demonstrate the reliability of the OST approach. Results indicated that the resonance frequencies remain unchanged prior to and after all exercises. The changes of Cardan angle between marker clusters induced by the exercises were rather minor, maximally 0.06 degrees. The reproducibility of the deformation angles during squatting remained small (0.04 degrees/m-0.65 degrees/m). Most importantly, all surgical and testing procedures were well tolerated. The OST method promises to bring more insights of the mechanical loading acting on bone than in the past. (C) 2014 IPEM. Published by Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Yang, Peng-Fei UNSPECIFIED UNSPECIFIED UNSPECIFIED Sanno, Maximilian UNSPECIFIED UNSPECIFIED UNSPECIFIED Ganse, Bergita UNSPECIFIED orcid.org/0000-0002-9512-2910 UNSPECIFIED Koy, Timmo UNSPECIFIED UNSPECIFIED UNSPECIFIED Brueggemann, Gert-Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller, Lars Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED Rittweger, Joern UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-432788
DOI:	10.1016/j.medengphy.2014.05.005
Journal or Publication Title:	Med. Eng. Phys.
Volume:	36
Number:	8
Page Range:	S. 1041 - 1047
Date:	2014
Publisher:	ELSEVIER SCI LTD
Place of Publication:	OXFORD
ISSN:	1873-4030
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language HUMAN TIBIA INVIVO; RESONANCE FREQUENCY; NONINVASIVE METHOD; SYSTEM; STRAIN; ADAPTATION; STABILITY; MECHANICS; ACCURACY; STRENGTH Multiple languages Engineering, Biomedical Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/43278