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April 17, 2026Orthopaedic Journal of Sports MedicineOpen Access

Passive Laxity With Functional Stability Reveals Potential Bilateral Dynamic Compensatory Mechanisms in Patients Undergoing ACL Reconstruction at Long-term Follow-up

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Authors

JBJillian E. BeveridgeMHMadalyn HagueMCMeggin Q. Costa

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Overview

Controlled study evaluates knee stability and compensatory mechanisms in ACLR patients after long-term follow-up, implying potential for adjustment over time.

Key Points

  • Determine the relationship between tibiofemoral alignment and dynamic constraint in ACL reconstruction patients compared to controls.
  • Recruitment of ACLR patients and matched controls from a longitudinal trial
  • 3D tibiofemoral position measurements via computed tomography
  • Dynamic knee kinematics recorded using biplane videoradiography during a 1-leg hop-for-distance task
  • Evaluation of side-to-side differences in knee kinematics as a measure of dynamic constraint.
  • Passive tibial position in ACLR patients was 7.5 mm more anterior compared to controls and 3.1 mm more than their contralateral limb
  • No significant difference in peak dynamic anterior position between surgical and contralateral limbs in ACLR patients (P = .83)
  • Peak anterior tibial position during flexion was 10.3 mm greater in ACLR surgical limbs compared to controls (P = .01).
  • Long-term follow-up suggests a deterioration of ACL graft function but with restored dynamic constraints.

Cite This Study

Beveridge et al. (2026) studied this question.

synapsesocial.com/papers/69e1cf625cdc762e9d858556https://doi.org/10.1177/23259671251414857
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Progressive Bilateral Alterations in Gait Biomechanics Within 2 Years After Anterior Cruciate Ligament Reconstruction2026 · 1 citations
  2. 2Side-to-side asymmetries in landing mechanics from a drop vertical jump test are not related to asymmetries in knee joint laxity following anterior cruciate ligament reconstruction2017 · 29 citations
  3. 3Impact of ACL Reconstruction on Short-Term Three-Dimensional Kinematic Gait in Pediatric Patients2026
  4. 4Association between tibiofemoral bone and meniscus morphology and dynamic tibiofemoral movements during jump‐landing tasks in patients following ACL reconstruction2026
  5. 5Time-Dependent Alterations in Walking Biomechanics After Anterior Cruciate Ligament Reconstruction Compared with Healthy Individuals: A Systematic Review with Meta-analysis2026 · 1 citations