Biomechanical characteristics of the horizontal mattress stitch: implication for double-row and suture-bridge rotator cuff repair

Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association
Mallika TamboliTeruhisa Mihata

Abstract

We investigated the effects of bite-size horizontal mattress stitch (distance between the limbs passed through the tendon) on the biomechanical properties of the repaired tendon. We anchored 20 bovine Achilles tendons to bone using no. 2 high-strength suture and 5-mm titanium suture anchors in a mattress-suture technique. Tendons were allocated randomly into two groups of ten each to receive stitches with a 4- or 10-mm bite. Specimens underwent cyclic loading from 5 to 30 N at 1 mm/s for 30 cycles, followed by tensile testing to failure. Gap formation, tendon strain, hysteresis, stiffness, yield load, ultimate load, energy to yield load, and energy to ultimate load were compared between groups using unpaired t tests. The 4-mm group had less (p < 0.05) gap formation and less (p < 0.05) longitudinal strain than did the 10-mm group. Ultimate load (293.6 vs. 148.9 N) and energy to ultimate load (2,563 vs. 1,472 N-mm) were greater (p < 0.001) for the 10-mm group than the 4-mm group. All tendons repaired with 4-mm suturing failed at the suture-tendon interface, with sutures pulling through the tendon, whereas the suture itself failed before the tendon did in seven of the ten specimens in the 10-mm group. Whereas a 4-mm bite fixed the...Continue Reading

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Citations

May 23, 2015·The Journal of Foot and Ankle Surgery : Official Publication of the American College of Foot and Ankle Surgeons·Jeremy WaltersMark Moss
Aug 6, 2016·Acta orthopaedica et traumatologica turcica·Onur HapaHasan Havitçioğlu
May 21, 2017·Bio-medical Materials and Engineering·Hirotaka SanoA Toshimitsu Yokobori
May 20, 2020·Orthopaedic Journal of Sports Medicine·Austin V StoneMichael T Freehill
Dec 9, 2020·Journal of Orthopaedic Surgery and Research·Joaquim ChalerGuy Trudel
Dec 1, 2019·Orthopaedics & Traumatology, Surgery & Research : OTSR·Selim ErgünMustafa Karahan
Aug 22, 2021·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Xinxian XuYuezheng Hu

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