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Related Experiment Video

Updated: May 25, 2026

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction
05:07

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction

Published on: March 1, 2024

Knee rotational laxity and proprioceptive function 2 years after partial ACL reconstruction.

J Chouteau1, R Testa, A Viste

  • 1Service de Chirurgie Orthopédique, de Traumatologie et de Médecine du Sport, Centre Hospitalier Lyon-Sud, Chemin du Grand Revoyet, 69495 Pierre Bénite, Cedex, France. juchout@hotmail.com

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
|January 20, 2012
PubMed
Summary

Related Concept Videos

Knee Joint01:23

Knee Joint

The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris group...

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Partial anterior cruciate ligament (ACL) reconstruction effectively restored knee rotational laxity and proprioceptive function, showing no significant difference compared to the healthy knee 2 years post-surgery.

Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Biomechanics

Background:

  • Partial anterior cruciate ligament (ACL) tears are common injuries.
  • Restoring knee function after ACL injury is crucial for patient recovery.
  • Evaluating rotational laxity and proprioception is key to assessing knee stability and function.

Purpose of the Study:

  • To evaluate knee rotational laxity and proprioceptive function two years after partial ACL reconstruction.
  • To determine if partial ACL reconstruction restores knee function to the level of the intact knee.

Main Methods:

  • Fifteen patients underwent partial ACL reconstruction using a single-incision technique with either a bone-patellar tendon-bone or semitendinosus graft.
  • A custom device was developed to measure weight-bearing rotational laxity and assess active and passive knee proprioception.

Related Experiment Videos

Last Updated: May 25, 2026

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction
05:07

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction

Published on: March 1, 2024

  • Measurements were taken on both the reconstructed and contralateral healthy knees at various flexion angles.

    • Main Results:

    • No statistically significant differences were found in rotational laxity or proprioception between the reconstructed and healthy knees.
    • External rotation exceeded internal rotation in both knees at full extension and 30° flexion.
    • Active proprioception was significantly higher than passive proprioception in both knees.

    Conclusions:

    • Partial ACL reconstruction successfully restores knee rotational laxity and proprioceptive function.
    • The findings suggest that partial ACL reconstruction is an effective treatment for partial ACL tears, leading to satisfactory knee function.