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Related Experiment Video

Updated: Jun 16, 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

Double-bundle ACL reconstruction: how big is the learning curve?

Martyn Snow1, William D Stanish

  • 1The Royal Orthopaedic Hospital, Northfield, Birmingham, UK. snowmartyn@gmail.com

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
|February 9, 2010
PubMed
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An experienced surgeon can accurately convert to a double-bundle anterior cruciate ligament (ACL) reconstruction. A learning curve was observed, with improved tunnel placement over 10 cases, demonstrating feasibility.

Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Anatomy

Background:

  • Anterior Cruciate Ligament (ACL) reconstruction is a common orthopedic procedure.
  • Single-bundle techniques are widely used, but double-bundle techniques are gaining traction.
  • Surgeon experience and learning curves are critical factors in adopting new surgical techniques.

Purpose of the Study:

  • To evaluate the accuracy of an experienced surgeon converting from single-bundle to double-bundle ACL reconstruction.
  • To identify any learning curve associated with this technique conversion.
  • To assess the anatomical accuracy of femoral and tibial tunnel placement in double-bundle ACL reconstruction.

Main Methods:

  • Ten double-bundle ACL reconstructions were performed by an experienced surgeon.

Related Experiment Videos

Last Updated: Jun 16, 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

  • Postoperative CT scans were used to measure femoral and tibial tunnel positions.
  • Tunnel locations were compared to established anatomical references.
  • Surgical time and complications were recorded.

    • Main Results:

    • No intraoperative complications occurred.
    • Surgical time decreased significantly from the first to the tenth case.
    • A tendency for distal placement of the femoral anteromedial tunnel and distal/anterior placement of the femoral posterolateral tunnel was noted.
    • Accurate tibial tunnel placement was achieved for both anteromedial (AM) and posterolateral (PL) tunnels.
    • An overall improvement in tunnel placement accuracy was observed across the 10 cases.

    Conclusions:

    • An experienced ACL surgeon can achieve relative accuracy when converting from a single-bundle to a double-bundle technique.
    • A learning curve exists, with improved accuracy over successive cases.
    • The medial portal approach for double-bundle ACL reconstruction is feasible for experienced surgeons.