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All procedures involving animal models have been reviewed by the local institutional animal care committee and the JoVE veterinary review board.
1. Tendon repair using core suture and Q suture
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	<li>Mark the anterior surface of one of the tendon stumps with 2 points that are 10 mm from the cut tendon end, with each point locating one-fourth of the way from the left (point 1) and the right (point 2), respectively, in the medial-lateral direction (Figure 1A).</li>
	<li>Mark each of the lef...

q suture technique: a suturing technique to reduce gap formation and increase tensile strength in tendon repair

Source: Mao, W. F., et al., <a href="https://www.jove.com/v/61445">Using Q Suture to Enhance Resistance to Gap Formation and Tensile Strength of Repaired Flexor Tendons.</a> J. Vis. Exp. (2020).
In this video, we demonstrate suturing techniques &#8212; core suture and Q suture &#8212; to repair the foot flexor tendon in an ex vivo porcine model. Q sutures enhance the strength of the core suture in tendon repair and decrease gapping at the tendon repair site.

<img alt="Figure 1" src="/files/ftp_upload/20915/20915_Figure1.jpg" /> 
Figure 1: 2-strand core suture in tendon repair. 
(A) Surface of tendon stump was marked with point 1, 2, 3, and 4. (B-E) Core suture in one tendon stump was completed. (F) The entire core suture was completed. (G) Suture was tightened, and knots were tied.
<img al...

Q Suture Technique: A Suturing Technique to Reduce Gap Formation and Increase Tensile Strength in Tendon Repair

Source: Mao, W. F., et al., Using Q Suture to Enhance Resistance to Gap Formation and Tensile Strength of Repaired Flexor Tendons. J. Vis. Exp. (2020).
In ...

Tendons are connective tissue that attaches the muscles to bones. Damaged tendons can be repaired by stitching their cut ends using the core suturing technique. This procedure still leaves gaps between tendon ends. To reduce any remaining gaps, an additional suturing technique called Q suture is performed.
Begin by placing two incised porcine tendon stumps longitudinally next to each other. For core suturing, mark points at an appropriate distance from the cut tendon end on the anterior and lateral sides. These points help determine the path of the suture.
Insert a longitudinal suture from the cut end. Advance it toward one of the anterior marking points. Pull the suture out from this point. Reinsert it into the nearby lateral marking, making a loop. Pass the suture through the other two markings. Repeat the process with the other stump and knot the sutures to ligate two stumps.
After core suturing, insert the suture on the anterior side of one tendon stump. Loop it on the posterior side of the second stump, spanning the core suture. Withdraw the suture from anterior portion of the second stump. Tie the knots to complete one Q suture. Repeat the process on the opposite side to add the second Q suture.
The repaired tendon is ready for further applications.

q-suture-technique-suturing-technique-to-reduce-gap-formation

Research

JoVE Encyclopedia of Experiments

Biology

Large Animal Models

Porcine

In this video, we demonstrate suturing techniques &#8212; core suture and Q suture &#8212; to repair the foot flexor tendon in an ex vivo porcine model. Q sutures enhance the strength of the core suture in tendon repair and decrease gapping at the tendon repair site.

Overview

Protocol

<img title="figure-representative results-58" alt="figure-representative results-58" src="/files/ftp_upload/20915/20915_Figure1.jpg" /> 
Figure 1: 2-strand core suture in tendon repair. 
(A) Surface of tendon stump was marked with point 1, 2, 3, and 4. (B-E) Core suture in one tendon stump was completed. (F) The entire core suture was completed. (G) Suture was tightened, and knots were tied.
<img al...

Q Suture Technique: A Suturing Technique to Reduce Gap Formation and Increase Tensile Strength in Tendon Repair

In This Article

Overview

Protocol

Representative Results

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