A Biomechanical Assessment of Repair Versus Nonrepair of Sheep Flexor Tendons Lacerated to 75 Percent
(2010) In The Journal of Hand Surgery 35A(4). p.546-551- Abstract
- Purpose The benefit of repairing a 75% partial flexor tendon laceration remains controversial. The purpose of this study was to assess the degree of gap formation with and without repair when the 75% lacerated tendon is subjected to cyclic loading. Repair with only a peripheral suture was compared to that using a core and peripheral repair technique. Methods Sixteen deep flexor tendons from sheep hind limbs were lacerated to 75% of the tendon diameter. The cut tendons were loaded for 100 cycles from 3 N up to 30 N and then back to 3 N, at a rate of 0.2 Hz. Gap formation was measured at 0 and 100 cycles. Tendons were then randomized into 2 repair groups of 8 each: group 1 was repaired with only a simple, running peripheral suture (6-0... (More)
- Purpose The benefit of repairing a 75% partial flexor tendon laceration remains controversial. The purpose of this study was to assess the degree of gap formation with and without repair when the 75% lacerated tendon is subjected to cyclic loading. Repair with only a peripheral suture was compared to that using a core and peripheral repair technique. Methods Sixteen deep flexor tendons from sheep hind limbs were lacerated to 75% of the tendon diameter. The cut tendons were loaded for 100 cycles from 3 N up to 30 N and then back to 3 N, at a rate of 0.2 Hz. Gap formation was measured at 0 and 100 cycles. Tendons were then randomized into 2 repair groups of 8 each: group 1 was repaired with only a simple, running peripheral suture (6-0 polypropylene monofilament), whereas group 2 was repaired with a modified Kessler core suture (4-0 silicone-coated braided polyester) plus a peripheral suture (6-0 polypropylene monofilament). Repaired tendons were tested for 500 cycles, and the gap was measured at 0, 100, and 500 cycles. After cycling, gap was measured at 100 N load, and the peak loads were determined on static failure testing. Results The 75% partially lacerated tendons had >2 mm gap at 100 cycles. This gap was significantly reduced by peripheral or peripheral plus core repairs (p < .001). There was no difference in gap formation between tendons with peripheral repair only and those with both peripheral and core repairs. Gap formation in repaired tendons remained <= 1 mm at 500 cycles. After cycling, neither gap formation at 100 N load or the peak loads on failure testing differed between the 2 repair groups. Conclusions There is a large gap when an unrepaired 75% partial laceration is cyclically loaded. This gap is significantly reduced with a peripheral repair whether or not a core suture is used. (J Hand Surg 2010;35A:546-551. (C) 2010 Published by Elsevier Inc. on behalf of the American Society for Surgery of the Hand.) (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1602984
- author
- Haddad, Roger ; Scherman, Peter LU ; Peltz, Tim ; Nicklin, Sean and Walsh, William R.
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- partial laceration, gap formation, Cyclic testing, flexor tendon
- in
- The Journal of Hand Surgery
- volume
- 35A
- issue
- 4
- pages
- 546 - 551
- publisher
- Elsevier
- external identifiers
-
- wos:000276604600004
- scopus:77950300103
- pmid:20189731
- ISSN
- 1531-6564
- DOI
- 10.1016/j.jhsa.2009.12.039
- language
- English
- LU publication?
- yes
- id
- c921252f-e4e2-4500-aea7-735691fa414e (old id 1602984)
- date added to LUP
- 2016-04-01 14:42:58
- date last changed
- 2022-01-28 02:09:10
@article{c921252f-e4e2-4500-aea7-735691fa414e,
abstract = {{Purpose The benefit of repairing a 75% partial flexor tendon laceration remains controversial. The purpose of this study was to assess the degree of gap formation with and without repair when the 75% lacerated tendon is subjected to cyclic loading. Repair with only a peripheral suture was compared to that using a core and peripheral repair technique. Methods Sixteen deep flexor tendons from sheep hind limbs were lacerated to 75% of the tendon diameter. The cut tendons were loaded for 100 cycles from 3 N up to 30 N and then back to 3 N, at a rate of 0.2 Hz. Gap formation was measured at 0 and 100 cycles. Tendons were then randomized into 2 repair groups of 8 each: group 1 was repaired with only a simple, running peripheral suture (6-0 polypropylene monofilament), whereas group 2 was repaired with a modified Kessler core suture (4-0 silicone-coated braided polyester) plus a peripheral suture (6-0 polypropylene monofilament). Repaired tendons were tested for 500 cycles, and the gap was measured at 0, 100, and 500 cycles. After cycling, gap was measured at 100 N load, and the peak loads were determined on static failure testing. Results The 75% partially lacerated tendons had >2 mm gap at 100 cycles. This gap was significantly reduced by peripheral or peripheral plus core repairs (p < .001). There was no difference in gap formation between tendons with peripheral repair only and those with both peripheral and core repairs. Gap formation in repaired tendons remained <= 1 mm at 500 cycles. After cycling, neither gap formation at 100 N load or the peak loads on failure testing differed between the 2 repair groups. Conclusions There is a large gap when an unrepaired 75% partial laceration is cyclically loaded. This gap is significantly reduced with a peripheral repair whether or not a core suture is used. (J Hand Surg 2010;35A:546-551. (C) 2010 Published by Elsevier Inc. on behalf of the American Society for Surgery of the Hand.)}},
author = {{Haddad, Roger and Scherman, Peter and Peltz, Tim and Nicklin, Sean and Walsh, William R.}},
issn = {{1531-6564}},
keywords = {{partial laceration; gap formation; Cyclic testing; flexor tendon}},
language = {{eng}},
number = {{4}},
pages = {{546--551}},
publisher = {{Elsevier}},
series = {{The Journal of Hand Surgery}},
title = {{A Biomechanical Assessment of Repair Versus Nonrepair of Sheep Flexor Tendons Lacerated to 75 Percent}},
url = {{http://dx.doi.org/10.1016/j.jhsa.2009.12.039}},
doi = {{10.1016/j.jhsa.2009.12.039}},
volume = {{35A}},
year = {{2010}},
}