Amestoy, JorgePérez-Prieto, DanielTorres Claramunt, RaúlSánchez Soler, Juan FranciscoSolano-López, AlbertoLeal Blanquet, JoanHinarejos Gómez, Pedro AngelMonllau García, Juan Carlos2022-09-122022-09-122022Amestoy J, Pérez-Prieto D, Torres-Claramunt R, Sánchez-Soler JF, Solano A, Leal-Blanquet J, et al. Preoperative muscle thickness influences muscle activation after arthroscopic knee surgery. Knee Surg Sports Traumatol Arthrosc. 2022 Jun; 30(6):1880-87. DOI: 10.1007/s00167-021-06820-40942-2056http://hdl.handle.net/10230/54041Purpose: the aim of this study was to compare the correlation between preoperative quadriceps femoris muscle thickness and postoperative neuromuscular activation and quadriceps femoris strength in patients with and without patellofemoral pain after arthroscopic partial meniscectomy. Methods: aseries of 120 patients were prospectively analysed in a longitudinal cohort study of patients scheduled for arthroscopic partial meniscectomy. The patellofemoral pain group included patients who developed anterior knee pain after surgery while the control group included those who had not done so. Patients with preoperative patellofemoral pain, previous knee surgeries as well as those on whom additional surgical procedures had been performed were excluded. Of the 120 initially included in the study, 90 patients were analysed after the exclusions. Results: There is a direct correlation between preoperative quadriceps femoris muscle thickness and the neuromuscular activity values and the strength of the muscle at 6 weeks after surgery. These results were seen exclusively in the group of patients who do not develop patellofemoral pain (0.543, p = 0.008). The group of patients who developed anterior knee pain in the postoperative period did not show this correlation (n.s.). Conclusion: in patients without patellofemoral pain after meniscectomy, the greater the preoperative thickness of the quadriceps femoris, the more postoperative neuromuscular activation and strength they had. This correlation did not occur in those patients who develop patellofemoral pain after meniscal surgery.application/pdfengCopyright © Amestoy J, Pérez-Prieto D, Torres-Claramunt R, Sánchez-Soler JF, Solano A, Leal-Blanquet J, 2021. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.info:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s00167-021-06820-4Knee arthroscopyPatellofemoral painQuadriceps muscle activationQuadriceps muscle atrophyQuadriceps muscle strengthinfo:eu-repo/semantics/openAccess