PURPOSE: To compare a standard suture material with a newer material using multiple arthroscopic knot configurations and to evaluate the biomechanical performance of a new sliding-locking knot compared with 4 surgical standards. TYPE OF STUDY: Controlled laboratory study. METHODS: Five knots were evaluated (Weston, Tennessee, Duncan, SMC, and the new San Diego knot) using 2 suture materials, No. 2 Ethibond (Ethicon, Somerville, NJ) or No. 2 Fiberwire (Arthrex, Naples, FL). Eight samples were tested for each knot-suture configuration. Samples were pretensioned to 10 N and then loaded from 10 to 45 N for 1,000 cycles. Intact knots were loaded to failure. RESULTS: Fiberwire had significantly higher load-to-failure (276 +/- 24 N) compared with Ethibond (111 +/- 13 N) (P < .001), although there was no significant difference as a function of knot configuration. Of the 40 Fiberwire knots, 3 failed by early slippage during cyclic loading and 8 slipped at very low tension during load-to-failure. None of the Ethibond knots and none of the San Diego knots failed by early slippage. CONCLUSIONS: Surface characteristics and suture construction affect the tendency for knot slippage. CLINICAL RELEVANCE: Surgeons should understand the impact of handling characteristics, frictional properties, and ultimate failure load when selecting suture materials and knots for arthroscopic repair.
PURPOSE: To compare a standard suture material with a newer material using multiple arthroscopic knot configurations and to evaluate the biomechanical performance of a new sliding-locking knot compared with 4 surgical standards. TYPE OF STUDY: Controlled laboratory study. METHODS: Five knots were evaluated (Weston, Tennessee, Duncan, SMC, and the new San Diego knot) using 2 suture materials, No. 2 Ethibond (Ethicon, Somerville, NJ) or No. 2 Fiberwire (Arthrex, Naples, FL). Eight samples were tested for each knot-suture configuration. Samples were pretensioned to 10 N and then loaded from 10 to 45 N for 1,000 cycles. Intact knots were loaded to failure. RESULTS: Fiberwire had significantly higher load-to-failure (276 +/- 24 N) compared with Ethibond (111 +/- 13 N) (P < .001), although there was no significant difference as a function of knot configuration. Of the 40 Fiberwire knots, 3 failed by early slippage during cyclic loading and 8 slipped at very low tension during load-to-failure. None of the Ethibond knots and none of the San Diego knots failed by early slippage. CONCLUSIONS: Surface characteristics and suture construction affect the tendency for knot slippage. CLINICAL RELEVANCE: Surgeons should understand the impact of handling characteristics, frictional properties, and ultimate failure load when selecting suture materials and knots for arthroscopic repair.
Authors: Giuseppe Milano; Andrea Grasso; Donatella Zarelli; Laura Deriu; Mario Cillo; Carlo Fabbriciani Journal: Knee Surg Sports Traumatol Arthrosc Date: 2007-08-08 Impact factor: 4.342
Authors: Keith M Baumgarten; Michael D Brodt; Matthew J Silva; Rick W Wright Journal: Knee Surg Sports Traumatol Arthrosc Date: 2008-08-22 Impact factor: 4.342
Authors: M H Baums; Ch Sachs; T Kostuj; K Schmidt-Horlohé; W Schultz; H-M Klinger Journal: Knee Surg Sports Traumatol Arthrosc Date: 2013-10-13 Impact factor: 4.342