Universität zu Köln

Trost, Matthias ORCID: 0000-0002-4984-6985, Knieps, Matthias, Loweg, Lennard, Neiss, Wolfram Friedrich ORCID: 0000-0002-5035-5825, Eysel, Peer, Frey, Soenke, Schulte, Tobias Ludger and Bredow, Jan (2019). Biomechanical comparison of conventional versus modified technique in distal chevron osteotomies of the first metatarsal: A cadaver study. Foot Ankle Surg., 25 (5). S. 665 - 670. AMSTERDAM: ELSEVIER. ISSN 1460-9584

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Abstract

Background: Distal chevron osteotomy can be performed using a conventional or a modified technique. The aim of this biomechanical study was to compare the stability of the two techniques. Methods: Eighteen first metatarsals from nine pairs of fresh frozen human cadaver feet were used. A distal chevron osteotomy was performed using the conventional technique in group 1 (n = 9) and using the modified technique in group 2 (n = 9). The head of the first metatarsals was loaded in two different configurations (cantilever and physiological), using a materials testing machine. Results: In the cantilever configuration, the relative stiffness of the osteosynthesis in comparison with intact bone was 60% (+/- 21%) in group 1 and 65% (+/- 25%) in group 2 (p = 0.61). In the physiological configuration, it was 47% (+/- 29%) in group 1 and 47% (+/- 21%) in group 2 (p = 0.98). The failure strength in the cantilever configuration was 235 N (+/- 128 N) in group 1 and 210 N (+/- 107 N) in group 2 (p = 0.47). Conclusions: The conventional and the modified technique for distal chevron osteotomy in the treatment of hallux valgus show a comparable biomechanical loading capacity in this cadaver study. (C) 2018 European Foot and Ankle Society. Published by Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Trost, Matthias UNSPECIFIED orcid.org/0000-0002-4984-6985 UNSPECIFIED Knieps, Matthias UNSPECIFIED UNSPECIFIED UNSPECIFIED Loweg, Lennard UNSPECIFIED UNSPECIFIED UNSPECIFIED Neiss, Wolfram Friedrich UNSPECIFIED orcid.org/0000-0002-5035-5825 UNSPECIFIED Eysel, Peer UNSPECIFIED UNSPECIFIED UNSPECIFIED Frey, Soenke UNSPECIFIED UNSPECIFIED UNSPECIFIED Schulte, Tobias Ludger UNSPECIFIED UNSPECIFIED UNSPECIFIED Bredow, Jan UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-132619
DOI:	10.1016/j.fas.2018.07.009
Journal or Publication Title:	Foot Ankle Surg.
Volume:	25
Number:	5
Page Range:	S. 665 - 670
Date:	2019
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1460-9584
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language HALLUX-VALGUS; ANKLE ARTHRODESIS; SCREW FIXATION Multiple languages Orthopedics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13261