Viscoelastic properties of the human A2 finger pulley - Kölner UniversitätsPublikationsServer

Spies, C. K., Heuvens, J., Langer, M. F., Eysel, P., Mueller, L. P., Grevenstein, D. and Oppermann, J. (2021). Viscoelastic properties of the human A2 finger pulley. Arch. Orthop. Trauma Surg., 141 (6). S. 1073 - 1081. NEW YORK: SPRINGER. ISSN 1434-3916

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DOI:10.1007/s00402-021-03781-8

Abstract

Introduction Biomechanical evaluation of the viscoelastic properties tissue deformation, stiffness, and maximum breaking load of the human A2 pulley. We hypothesized that the A2 pulleys of index, middle, and ring fingers exhibit no difference regarding the aforementioned biomechanical parameters. Methods Forty-one A2 pulleys of 14 upper extremities (8 body donors) were assessed. Cyclic and load-to-failure testing were performed. The biomechanical parameters tissue deformation during cyclic and load-to-failure testing, stiffness, and maximum breaking load were determined. Results No significant differences between the fingers could be detected regarding the biomechanical parameters. A significant negative correlation could be detected between stiffness and deformation of the pulley. Significant positive correlations could be identified between stiffness and maximum breaking load and between maximum breaking load and deformation of the pulleys. Conclusions Assessment of the viscoelastic properties of the A2 finger pulley promotes precise diagnosis of pulley lesions and will help to optimize treatment.

Item Type:

Journal Article

Creators:

Creators	Email	ORCID	ORCID Put Code
Spies, C. K.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Heuvens, J.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Langer, M. F.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Eysel, P.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Mueller, L. P.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Grevenstein, D.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Oppermann, J.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED