We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Medial Meniscal Posterior Horn Suturing Influences Tibial Internal-External Rotation in ACL-Reconstructed Knees.
- Authors
Grassi, Alberto; Agostinone, Piero; Paolo, Stefano Di; Lucidi, Gian Andrea; Pinelli, Erika; Marchiori, Gregorio; Bontempi, Marco; Bragonzoni, Laura; Zaffagnini, Stefano
- Abstract
Background: The role of meniscal lesions and repair in combination with anterior cruciate ligament (ACL) injury and reconstruction has not been extensively investigated in vivo and under weightbearing conditions. Purpose: The purposes of this study were to (1) compare the in vivo knee kinematics between patients with ACL tear and those with combined ACL and medial meniscal tears and (2) investigate kinematic differences between isolated ACL reconstruction and ACL reconstruction plus medial meniscal repair (MR). It was hypothesized that concomitant posterior horn medial meniscal tear and ACL deficiency would affect knee internal-external rotation and anterior-posterior translation but MR would restore these parameters. Study Design: Controlled laboratory study. Methods: Nineteen patients who underwent ACL reconstruction were included: 10 had intact menisci (IM group) and 9 had a medial meniscal injury that was repaired during ACL reconstruction using an all-inside technique (MR group). Preoperatively and 18 months postoperatively, active knee kinematics under weightbearing conditions was evaluated during a single-leg squat using a dynamic biplane x-ray imaging system. The general linear model was used to investigate the differences between group (IM vs MR) and time (preoperative vs follow-up) and their interactions. Results: Tibial internal rotation was higher in the MR group than the IM group both before and after surgery (P =.007). Knee valgus rotation was higher in the MR group preoperatively (P <.001), while no differences were found postoperatively because of an increase of valgus rotation in the IM group, which was significant in the descendant phase (P <.001). Preoperatively, the IM group showed a more medial tibial translation compared with the MR group in the descendant phase (P =.006). Conclusion: When performing a single-leg squat, patients with ACL-deficient knees and a medial meniscal tear demonstrated a more valgus rotation, tibial internal rotation, and lateral tibial translation versus those with intact menisci. After ACL reconstruction and MR, these patients demonstrated significantly higher tibial internal rotation when compared with patients who underwent isolated ACL reconstruction. Clinical Relevance: Surgeons should be aware that MR does not fully restore knee kinematics in vivo and under weightbearing conditions in the context of ACL reconstruction.
- Subjects
TIBIA physiology; KNEE joint; ISOMETRIC exercise; MENISCUS (Anatomy); IN vivo studies; RANGE of motion of joints; RADIOSTEREOMETRY; CONFIDENCE intervals; STRUCTURAL models; MAGNETIC resonance imaging; TREATMENT effectiveness; COMPARATIVE studies; PHOTOGRAMMETRY; ANTERIOR cruciate ligament injuries; RESEARCH funding; DESCRIPTIVE statistics; ANTERIOR cruciate ligament surgery; DATA analysis software; MENISCUS injuries; KINEMATICS; SECONDARY analysis; LONGITUDINAL method; REHABILITATION
- Publication
Orthopaedic Journal of Sports Medicine, 2023, Vol 11, Issue 7, p1
- ISSN
2325-9671
- Publication type
Article
- DOI
10.1177/23259671231177596