Universität zu Köln

Spies, Christian K., Niehoff, Anja, Unglaub, Frank, Mueller, Lars P., Langer, Martin F., Neiss, Wolfram F. and Oppermann, Johannes (2016). Biomechanical comparison of transosseous re-fixation of the deep fibres of the distal radioulnar ligaments versus deep and superficial fibres: a cadaver study. Int. Orthop., 40 (2). S. 315 - 322. NEW YORK: SPRINGER. ISSN 1432-5195

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Abstract

Purpose We hypothesized that the re-fixation of the deep and superficial fibres of the distal radioulnar ligaments provide improved stability compared to reconstruction of the deep fibres alone. Methods Fourteen fresh-frozen cadaver upper extremities were used for biomechanical testing. Transosseous re-fixation of the deep fibres of the distal radioulnar ligaments alone (single mattress suture group; n=7) was compared to the transosseous re-attachment of the deep and superficial fibres (double mattress suture group; n=7). Cyclic load application provoked palmar translation of the radius with respect to the rigidly affixed ulna. Creep, stiffness, and hysteresis were obtained from the load-deformation curves, respectively. Testing was done in neutral forearm rotation, 60 degrees pronation, and 60 degrees supination. Results The re-fixation techniques did not differ significantly regarding the viscoelastic parameters creep, hysteresis, and stiffness. Several significant differences of one cycle to the consecutive one within each re-fixation group could be detected especially for creep and hysteresis. No significant differences between the different forearm positions could be detected for each viscoelastic parameter. Conclusions The re-fixation techniques did not differ significantly regarding creep, hysteresis, and stiffness. This means that the additional re-attachment of the superficial fibres may not provide greater stability to the DRUJ. Bearing in mind that the study was a cadaver examination with a limited number of specimens we may suppose that the re-attachment of the superficial fibres seem to be unnecessary. A gradual decline of creep and hysteresis from first to last loading-unloading cycle is to be expected and typical of ligaments which are viscoelastic.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Spies, Christian K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Niehoff, Anja UNSPECIFIED UNSPECIFIED UNSPECIFIED Unglaub, Frank UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller, Lars P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Langer, Martin F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Neiss, Wolfram F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Oppermann, Johannes UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-285630
DOI:	10.1007/s00264-015-2986-1
Journal or Publication Title:	Int. Orthop.
Volume:	40
Number:	2
Page Range:	S. 315 - 322
Date:	2016
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1432-5195
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TRIANGULAR FIBROCARTILAGE COMPLEX; ASSISTED REPAIR; JOINT; STABILITY; TEARS; INSTABILITY; ATTACHMENTS Multiple languages Orthopedics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/28563