Universität zu Köln

Hackl, Michael ORCID: 0000-0002-6183-5621, Wegmann, Kilian, Ries, Christian, Lappen, Sebastian, Scaal, Martin and Mueller, Lars Peter (2017). Annular ligament reconstruction with the superficial head of the brachialis: surgical technique and biomechanical evaluation. Surg. Radiol. Anat., 39 (6). S. 585 - 592. PARIS: SPRINGER FRANCE. ISSN 1279-8517

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Abstract

The purpose of this study was to perform biomechanical testing of annular ligament (AL) reconstruction using the superficial head of the brachialis tendon (SHBT) as a distally based tendon graft. We hypothesized that posterior translation of the radial head following AL reconstruction with an SHBT graft does not significantly differ from intact specimens. Six fresh-frozen elbow specimens were used. The stability of the radial head against posterior translation forces (30 N) was evaluated in 0A degrees, 45A degrees, 90A degrees and 120A degrees of elbow flexion. Posterior translation was obtained for the intact AL, the sectioned AL and the reconstructed AL. Cyclic loading (100 cycles) in 90A degrees of elbow flexion was performed for the intact and the reconstructed AL. Posterior translation of the radial head decreased during elbow flexion in native specimens. Sectioning of the AL significantly increased instability over the full range of motion. AL reconstruction with the SHBT restored the stability of the proximal radius but-other than the native AL-was not influenced by elbow flexion. In 120A degrees of flexion the native AL provided significantly more stability when compared to the reconstructed AL. Cyclic loading did not provide significant differences between native and reconstructed specimens. We provide a feasible technique for AL reconstruction using the SHBT. The biomechanical results obtained in this study confirm the efficacy of the procedure. AL reconstruction restores the stability of the proximal radius, yet it cannot fully mimic the complex features of the intact AL.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Hackl, Michael UNSPECIFIED orcid.org/0000-0002-6183-5621 UNSPECIFIED Wegmann, Kilian UNSPECIFIED UNSPECIFIED UNSPECIFIED Ries, Christian UNSPECIFIED UNSPECIFIED UNSPECIFIED Lappen, Sebastian UNSPECIFIED UNSPECIFIED UNSPECIFIED Scaal, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller, Lars Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-229342
DOI:	10.1007/s00276-016-1774-y
Journal or Publication Title:	Surg. Radiol. Anat.
Volume:	39
Number:	6
Page Range:	S. 585 - 592
Date:	2017
Publisher:	SPRINGER FRANCE
Place of Publication:	PARIS
ISSN:	1279-8517
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language POSTEROLATERAL ROTATORY STABILITY; LATERAL COLLATERAL LIGAMENT; RADIAL HEAD; MONTEGGIA FRACTURES; FUNCTIONAL-ANATOMY; ELBOW INSTABILITY; CHILDREN; DISLOCATION; MUSCLE; JOINT Multiple languages Anatomy & Morphology; Radiology, Nuclear Medicine & Medical Imaging; Surgery Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/22934