This study determined the tensile properties of 18-gauge stainless steel wire, 5-mm woven polyester (Mersilene) tape, and multiple loop configurations of No. 5 braided polyester suture (Ethibond).
Design: Mechanical property testing.
Intervention: Single loops of stainless steel wire, Mersilene, and Ethibond were tested to determine their mechanical properties. Ethibond was tested with different numbers of loops and different knot configurations.
Main Outcome Measures: Stiffness, load at failure, and elongation at failure.
It appears that multiple loops of Ethibond can substitute for stainless steel wire in situations where a compliant repair is suitable (support of a patellar tendon repair), but may not be satisfactory for rigid fixation (tension band fixation of a fracture). There appears to be no significant difference in strength but a small decrease in stiffness between tying multiple suture loops in one knot as opposed to individual knots.
Copyright remains with the authors and publisher.
This study determined the tensile properties of 18-gauge stainless steel wire, 5-mm woven polyester (Mersilene) tape, and multiple loop configurations of No. 5 braided polyester suture (Ethibond).
Design: Mechanical property testing.
Intervention: Single loops of stainless steel wire, Mersilene, and Ethibond were tested to determine their mechanical properties. Ethibond was tested with different numbers of loops and different knot configurations.
Main Outcome Measures: Stiffness, load at failure, and elongation at failure.
It appears that multiple loops of Ethibond can substitute for stainless steel wire in situations where a compliant repair is suitable (support of a patellar tendon repair), but may not be satisfactory for rigid fixation (tension band fixation of a fracture). There appears to be no significant difference in strength but a small decrease in stiffness between tying multiple suture loops in one knot as opposed to individual knots.
Copyright remains with the authors and publisher.