RT Journal Article
T1 Influence of Loading Conditions on the Mechanical Performance of Multifilament Coreless UHMWPE Sutures Used in Orthopaedic Surgery
A1 Prado-Novoa, María
A1 Pérez-Sánchez, Laura
A1 Estébanez-Campos, María Belén
A1 Moreno Vegas, Salvador
A1 Pérez-Blanca, Ana
K1 Cirugía ortopédica
AB This work studies the influence of loading velocity and previous cyclic loading historyon the stiffness and strength of a multifilament coreless ultra-high-molecular-weight polyethylene(UHMWPE) surgical suture. Thread samples (n = 8) were subjected to a load-to-failure test at 0.1, 0.5,1, 5, and 10 mm/s without previous loading history and after 10 cycles of loading at 1–10 N, 1–30 N,and 1–50 N. The experimental data were fitted to mathematical models to compute the stress–strainrelation and the strength of the suture. The bilinear model involving two stress–strain ratios for lowand high-strain intervals was the best fit. The ratio in the low-strain range rose with loading speed,showing mean increases of 5.9%, 6.5%, 7.9%, and 7.3% between successive loading speeds. Without aprevious loading history, this ratio was less than half than that at high strain. However, 10 cycles of1–30 N or 1–50 N significantly increased the stress–strain ratio at a low strain level by 135% and 228%,respectively. The effect persisted after 2 min but vanished after 24 h. No influence was found on thesuture strength. In conclusion, the stiffness of the studied suture was influenced by the strain level,loading velocity, and recent cyclic loading history. Conversely, the suture strength was not affected.
PB IOAP-MPDI
YR 2022
FD 2022-03-31
LK https://hdl.handle.net/10630/24270
UL https://hdl.handle.net/10630/24270
LA spa
NO Prado-Novoa M, Perez-Sanchez L, Estebanez B, Moreno-Vegas S, Perez-Blanca A. Influence of Loading Conditions on the Mechanical Performance of Multifilament Coreless UHMWPE Sutures Used in Orthopaedic Surgery. Materials. 2022; 15(7):2573. https://doi.org/10.3390/ma15072573
NO This research was funded by the Ministerio de Ciencia, Innovación y Universidades de España, grant number RTI2018-094339-B-100, and the Consejería de Economia, Conocimiento, Empresas y Universidades de Andalucia, Spain, grant number P20-00294. Partial funding for open access charge: Universidad de Málaga
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026