Universität zu Köln

Ganse, B., Yang, P-F., Brueggemann, G-P., Mueller, L. P., Rittweger, J. and Koy, T. (2014). In vivo measurements of human bone deformation using optical segment tracking: surgical approach and validation in a three-point bending test. J. Musculoskelet. Neuronal Interact., 14 (1). S. 95 - 104. NAFPLION: JMNI. ISSN 1108-7161

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Abstract

The purpose of the study was to validate optical segment tracking, a new method for in vivo human tibia deformation measurements and to assess bending in a three-point bending test. The approach relies upon optical motion capturing of reflecting marker clusters affixed to the bone via screws inserted three millimeters into the corticalis in local anesthesia. The method was tested in five healthy subjects. Screws were left in place for six to eight hours and a variety of exercises performed. A pain questionnaire was used to assess pain levels. PQCT-images were taken to locate screw holes in the bone. A three-point bending test was performed and repeatability evaluated. The new method shows good feasibility though this was previously considered impossible by many experts. Local anesthesia works for screw implantation and explantation. Results show linearity with an average of 0.25 degrees per 10 kg of weight applied with good repeatability (average variation coefficient 8%). Optical segment tracking is feasible for human in vivo bone deformation measurements. There is a variety of possible clinical and experimental applications including stability testing of osteosyntheses and joints, monitoring of bone healing, evaluation of exercises in physiotherapy, and assessment of bone deformation patterns in bone disease.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Ganse, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Yang, P-F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Brueggemann, G-P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller, L. P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rittweger, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Koy, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-444065
Journal or Publication Title:	J. Musculoskelet. Neuronal Interact.
Volume:	14
Number:	1
Page Range:	S. 95 - 104
Date:	2014
Publisher:	JMNI
Place of Publication:	NAFPLION
ISSN:	1108-7161
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language STRAIN-MEASUREMENTS; TIBIAL STRAINS; SYSTEM; STRENGTH; GAUGES Multiple languages Neurosciences; Physiology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/44406