Design and evaluation of a cryogenic soft tissue fixation device — load tolerances and thermal aspects

Rincón, Lina; Schatzmann, Lukas; Brunner, Peter; Stäubli, Hans Ulrich; Ferguson, Stephen John; Oxland, Thomas; Nolte, Lutz Peter (2001). Design and evaluation of a cryogenic soft tissue fixation device — load tolerances and thermal aspects Journal of Biomechanics, 34(3), pp. 393-397. Elsevier 10.1016/s0021-9290(00)00214-1

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Mechanical studies of soft connective tissues often encounter methodological difficulties, particularly in the secure fixation of the tissues. A simple, inexpensive technique which allowed stable cryofixation of soft tissues in uniaxial loading machines was developed. The cryogenic fixation device was evaluated in terms of its fixation strength and the temperature gradients within the tested tissues. Human patellar ligaments and quadriceps tendons were tested successfully to an average failure load of 2219 N (S.D. 448 N) with mid-substance failures occurring in 90% of the specimens. The temperature gradients within porcine flexor and extensor tendons were determined and found to exhibit a typical diffusion profile. The fixation quality was dependent upon the initial block temperature and the desired testing time. In summary, the cryofixation device presented here is an effective tool for soft tissue fixation but the effect of this type of fixation on internal tissue temperatures and possible testing times must be acknowledged.

Item Type:	Journal Article (Original Article)
Division/Institute:	School of Engineering and Computer Science > Forschung und Dienstleistungen (FDLT) School of Engineering and Computer Science
Name:	Rincón, Lina; Schatzmann, Lukas; Brunner, Peter0000-0003-1511-4839; Stäubli, Hans Ulrich; Ferguson, Stephen John; Oxland, Thomas and Nolte, Lutz Peter
ISSN:	0021-9290
Publisher:	Elsevier
Submitter:	Peter Brunner
Date Deposited:	04 Mar 2020 14:53
Last Modified:	15 Jan 2024 15:02
Publisher DOI:	10.1016/s0021-9290(00)00214-1
ARBOR DOI:	10.24451/arbor.8656
URI:	https://arbor.bfh.ch/id/eprint/8656