Corcoll, FerranPérez-Prieto, DanielKarbysheva, SvetlanaTrampuz, AndrejFariñas, OscarMonllau García, Juan Carlos2024-04-102024-04-102023Corcoll F, Pérez-Prieto D, Karbysheva S, Trampuz A, Fariñas O, Monllau JC. Are hamstring grafts a predisposing factor to infection in R-ACL surgery? A comparative in vitro study. Pathogens. 2023 May 25;12(6):761. DOI: 10.3390/pathogens120607612076-0817http://hdl.handle.net/10230/59710Background: The objective of the present study was to evaluate the formation of biofilms in bone patellar tendon bone grafts (BPTB grafts), and to compare it to the formation of biofilm formation in quadrupled hamstring anterior cruciate ligament grafts (4×Ht graft). Methods: A descriptive in vitro study was conducted. One 4×Ht graft and one BPTB graft were prepared. They were then contaminated with a strain of S. epidermidis. Later, a quantitative analysis was conducted by means of microcalorimetry and sonication with plating. Additionally, a qualitative analysis was conducted by means of electron microscopy. Results: No significant differences were found between the bacterial growth profiles of the 4×Ht graft and the BPTB graft in microcalorimetry and colony counting. In the samples analyzed with electron microscopy, no specific biofilm growth pattern was identified upon comparing the BPTB graft to the 4×Ht graft. Conclusions: There were no significant differences found at either the quantitative or qualitative level when comparing bacterial growth in the BPTB graft to that in the 4×Ht graft. Therefore, the presence of sutures in the 4×Ht graft cannot be established as a predisposing factor for increased biofilm growth in this in vitro study.application/pdfeng© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).info:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/pathogens12060761Anterior cruciate ligament reconstructionArthroscopyBiofilmImplant-associated infectionSeptic arthritisSports medicineinfo:eu-repo/semantics/openAccess