Tensile properties of synthetic, absorbable monofilament suture materials before and after incubation in phosphate‐buffered saline

Abstract

Objective To compare tensile properties of synthetic, absorbable, monofilament suture material before and after incubation in phosphate‐buffered saline (PBS). Study design Two sizes (2‐0 and 3‐0) of Biosyn, Maxon, Monocryl, PDS II, Securocryl, and Securodox were tested. Sample population Ten suture loops per group. Methods Tensile strength, elongation, and modulus of suture loops were measured at baseline and after 7, 14, 21, or 28 days of incubation in PBS. Results Size, suture material, and size × suture material interaction influenced maximum breaking load, maximum elongation, and modulus of elasticity. At baseline, 2‐0 and 3‐0 Maxon had the highest breaking loads (111.67 N and 79.71 N, respectively) for their size, and 2‐0 PDSII and 3‐0 Securodox had the lowest (68.71 N and 48.73 N, respectively). Maxon 2‐0 and 3‐0 had the greatest elongations (9.68 mm and 8.45 mm, respectively) for their size, and 2‐0 Biosyn and 3‐0 Securocryl had the least (7.21 mm and 6.58 mm, respectively). Biosyn 2‐0 and 3‐0 had the highest modulus. With incubation, Maxon (2‐0), PDS II (2‐0, 3‐0), and Securodox (2‐0, 3‐0) maintained or gained strength over 4 weeks. Strengths of 2‐0 and 3‐0 Biosyn and 3‐0 Maxon were maintained for 2 weeks, while Monocryl and Securocryl lost 20% to 44% of baseline strength within 1 week and 60% to 72% within 2 weeks. Day 7 strengths of 2‐0 Biosyn and 2‐0 Monocryl were greater than baseline strength of 2‐0 PDS II. Strength of 3‐0 Biosyn at day 14 was greater than strength of Monocryl at days 7 and 14 and greater than strength of 3‐0 PDS II, 3‐0 Securodox, and 3‐0 Securocryl at baseline and days 7 and 14. Conclusion Suture tensile properties varied with suture size, composition, and brand. At baseline, Maxon suture had the greatest strength and elongation, and Biosyn had the greatest stiffness. Clinical significance Tensile strength retention, when reported as a percentage of original strength, provides insufficient information for comparison of suture tensile properties.

Biomechanical Comparison of a 3-Loop Pulley and a 4-Loop Pulley Suture for Tenorrhaphy in the Canine Gastrocnemius Tendon

“…36 Increasing suture size has been shown to be associated with an increased likelihood of construct failure by suture pull through. 37 In this study, the failure method was associated with suture pull through, and failure was between the suture-tissue relationship and not true suture failure. Tensile strength (measured in Newtons) of a suture depends on the cross-sectional area of the suture as well as the intrinsic strength of the suture material.…”

“…It is also the most widely used in previous studies and more recently has been found to be most appropriate for tenorrhaphies in cadaveric canine tendons. 37 Furthermore, the use of nonabsorbable suture material is favoured in canine tenorrhaphy, due to the known extended time for tendons to regain their tensile strength. The linear arrangement of collagen in normal tendon architecture provides little holding strength for simple suture patterns, 22 which results in suture pull out, and increasing the number of suture strands across the tenorrhaphy has been shown to enhance construct strength.…”

In Vivo Versus In Vitro Degradation of a 3D Printed Resorbable Device for Ligation of Vascular Tissue in Horses

“…It has previously been shown that changes in E and σ b of PDO sutures were minor for aging in vitro especially during initial weeks of degradation. [ 8,9,37,38 ] It was depicted that the minor change in modulus of PDO after degradation was related to the low mass loss. [ 31 ] In the current study the decrement of strain at break ( ε b ) was as large as 88% for perforated band after 10 days of aging.…”

Soft Elastomeric Capacitor for Strain and Stress Monitoring on Sutured Skin Tissues

“…The separated skin tissues were sutured by merging the suture wire with the dermis layers. The suture wire was assigned as poliglecaprone of 0.3 mm diameter and 8.1 × 10 7 Pa stiffness based on the literature . The FEM for the sutured skin specimen is shown in Figure d.…”

“…The suture wire was assigned as poliglecaprone of 0.3 mm diameter and 8.1 × 10 7 Pa stiffness based on the literature. 45 The FEM for the sutured skin specimen is shown in Figure 2d.…”