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- Title
Influence of barbed epitendinous sutures combined with a core locking‐loop suture to repair experimental flexor tendon lacerations.
- Authors
Eby, Adam C.; Duffy, Daniel J.; Chang, Yi‐Jen; Gaffney, Lewis; Fisher, Matthew B.; Moore, George E.
- Abstract
Objective: To determine the influence of barbed epitendinous sutures (ES) on the biomechanical properties and gap formation of repaired canine tendons. Study design Ex vivo, experimental study. Sample population Eighty (n = 16/group) canine superficial digital flexor tendons (SDFT). Methods: After transection, SDFT were repaired with a locking‐loop (LL) pattern alone (group 1), an LL + smooth ES with monofilament suture (group 2), an LL + V‐loc‐ES (group 3), an LL + Quill‐ES (group 4), or an LL + Stratafix‐ES (group 5). All core LL repairs were performed with 0 USP polypropylene, and all ES were placed with 2‐0 USP equivalent. Constructs were preloaded and tested to failure. Yield, peak, and failure loads; occurrence of gap formation; and failure modes were compared. Results: Yield loads were greater for groups 2 and 5 (P <.0001). Peak and failure loads were greater when an ES was used (P <.005), especially for groups 2 and 5 (P <.0001). Groups with an ES required higher loads to generate 1‐ and 3‐mm gaps compared with specimens without an ES (P <.002). Force to create 1‐ and 3‐mm gaps was greater for group 5 (P <.0001) and groups 2 and 5 (P <.0001), respectively. Failure mechanism did not differ (P =.092) between ES groups, consisting of suture breakage in 51 of 64 constructs compared with pull‐through in seven of 16 group 1 constructs. Conclusion: Epitendinous suture placement improved the biomechanical properties of repaired tendons. Stratafix barbed suture performed better as an ES compared with other barbed sutures and similarly to monofilament suture. Clinical significance: Stratafix barbed suture eliminates the requirement for knot tying and seems to be equivalent to smooth monofilament suture when used as an ES in this pattern.
- Subjects
FLEXOR tendons; SUTURES; FAILURE mode &; effects analysis; PEAK load
- Publication
Veterinary Surgery, 2020, Vol 49, Issue 8, p1590
- ISSN
0161-3499
- Publication type
Article
- DOI
10.1111/vsu.13496