Alteration of knee joint moment after anterior cruciate ligament reconstruction conditions in subjects with and without meniscal pathology

Kohei Nishizawa, Kengo Harato, Shu Kobayashi, Yasuo Niki, Takeo Nagura

Research output: Contribution to journalArticlepeer-review

Abstract

Background: The effects of anterior cruciate ligament (ACL) reconstruction on postoperative gait biomechanics remain controversial, and the influence of meniscus pathology on pre- and post-ACL reconstruction biomechanical changes has not yet been studied. Here, we aimed to clarify the difference in knee joint moment between pre- and post-ACL reconstruction conditions in subjects with and without meniscal pathology. Methods: Twenty-four subjects with unilateral ACL reconstruction injuries participated in this study. A total of 13 of the subjects had concomitant meniscus injuries. Gait analysis was performed preoperatively and at 11 months postoperatively. Three-dimensional knee joint angles and moments were calculated based on motion-capture data. The total joint moment and contribution of individual moments during the stance phase were assessed. For statistical analysis, we compared pre- and postoperative alterations, and differences were assessed in subjects with and without meniscal pathology. Results: Tibial rotation excursion was lower in subjects with meniscal pathology than in those with intact menisci postoperatively. An significant increase in the contribution of the knee flexion moment and a significant decrease in the contribution of the knee adduction moment postoperatively were observed in subjects with intact menisci. Conclusions: Patients with ACL injury showed different postoperative alterations in joint moments depending on the concomitant meniscal injury.

Original languageEnglish
Pages (from-to)8-13
Number of pages6
JournalKnee
Volume48
DOIs
Publication statusPublished - 06-2024

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

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