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Continuous Vertical Inside-Out Versus Traditional Vertical Inside-Out Meniscal Repair: A Biomechanical Comparison

Continuous Vertical Inside-Out Versus Traditional Vertical Inside-Out Meniscal Repair: A Biomechanical Comparison

José Leonardo Rocha De Faria , MD, MSc, BRAZIL Arthur Paiva Grimaldi Santos, M.Sc., BRAZIL Douglas Mello Pavão, MD, MSc, PhD, BRAZIL Mariana Radulski, Medical Student, BRAZIL Ana Carolina Leal, PhD, BRAZIL Ari Digiácomo Ocampo Moré, PhD, BRAZIL Alan de Paula Mozella, PhD, Prof., BRAZIL Joao ANTONIO MATHEUS GUIMARAES, BRAZIL Robert F. LaPrade, MD, PhD, UNITED STATES Carlos Rodrigo de Mello Roesler, PhD, BRAZIL Rodrigo Salim, MD,PhD, BRAZIL

Federal University of Santa Catarina, Florianópolis, Santa Catarina, BRAZIL


2023 Congress   ePoster Presentation   2023 Congress   Not yet rated

 

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Summary: This study indicates that the continuous vertical inside-out meniscal suture technique is biomechanically similar to the technique established in the literature, being a possible therapeutic option to be used


Background

Biomechanical assessment of meniscal repairs is essential for evaluating different meniscal suturing methods and techniques. The continuous meniscal suture technique is a new method of meniscal repair and has not yet been biomechanically evaluated.

Purpose

To evaluate the displacement, stiffness after cyclical loads, and load to failure for a continuous vertical inside-out meniscal suture versus a traditional vertical inside-out meniscal suture in a porcine medial meniscus.
Study Design: Controlled Laboratory Study

Methods

Thirty porcine knees were acquired and divided into two test groups of 15 knees each. A 2.0 cm longitudinal red-white zone transition lesion was created in the body of the medial meniscus of all knees. The continuous suture (CS) group (group A) received four vertical stitches performed with a continuous vertical meniscal suture technique, and the traditional suture (TS) group (group B) received a traditional vertical suture with four stitches.

Results

The displacement after a cyclic test was 0.52 ± 0.12 mm and 0.48 ± 0.07 for the CS and TS groups, respectively. No significant differences were observed between both groups (p = 0.3108). In the load-to-failure test, the ultimate load was 219.9 ± 61.6 N and 238.3 ± 71.3 N in the CS and TS groups, respectively. There were no significant differences between both groups (p = 0.4623). The system's stiffness at the last cycle was 36.2 ± 1.8 N/mm and 35.3 ± 2.4 N/mm for groups A and B, respectively. The two groups had no significant difference (p = 0.2340).

Conclusion

A continuous vertical meniscal suture created a beneficial configuration for treating longitudinal meniscal lesions, biomechanically similar to a traditional vertical suture technique. Therefore, the continuous vertical suture technique appears to be a good option for the surgical treatment of longitudinal tears of the medial meniscus.


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