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Updated: Jun 24, 2026

Arthroscopic Excision of Posterior Cruciate Ligament Cysts Using a Double Posteromedial Approach

Arthroscopic Excision of Posterior Cruciate Ligament Cysts Using a Double Posteromedial Approach

Published on: October 20, 2023

Arthroscopic evaluation of the ACL double bundle structure.

Hanno Steckel¹, F H Fu, M H Baums

¹Department of Orthopaedic Surgery, University of Göttingen, Robert-Koch-Strasse 40, 37073, Göttingen, Germany. hanno.steckel@gmail.com

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA

|April 1, 2009

Summary

This summary is machine-generated.

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Knee Joint

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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The anteromedial portal (AMP) significantly improves visualization of the anterior cruciate ligament

Area of Science:

Orthopedic Surgery
Knee Arthroscopy
Anterior Cruciate Ligament Anatomy

Background:

The anterior cruciate ligament (ACL) has a complex double-bundle structure.
Accurate visualization of these bundles is crucial for successful ACL reconstruction.
Optimal portal selection in knee arthroscopy can enhance visualization of the ACL's femoral insertion sites.

Purpose of the Study:

To describe the arthroscopic appearance of the ACL's double-bundle structure.
To evaluate the effectiveness of different arthroscopic portals for visualizing the anteromedial (AM) and posterolateral (PL) bundles.
To determine the optimal portal for arthroscopic ACL reconstruction.

Main Methods:

Prospective examination of 60 knees undergoing arthroscopic surgery for non-ACL pathology.

Related Experiment Videos

Last Updated: Jun 24, 2026

Arthroscopic Excision of Posterior Cruciate Ligament Cysts Using a Double Posteromedial Approach

Arthroscopic Excision of Posterior Cruciate Ligament Cysts Using a Double Posteromedial Approach

Published on: October 20, 2023

Standard two-portal arthroscopy technique using anterolateral (ALP) and anteromedial (AMP) portals.

Assessment of AM and PL bundle visualization with the arthroscope in each portal.

Main Results:

The AM and PL bundles were distinguishable in only 28% of cases with the arthroscope in the ALP.
Switching the arthroscope to the AMP increased bundle differentiation to 67%.
The AMP portal significantly enhanced visualization of the PL bundle, especially after AM bundle retraction.

Conclusions:

The anteromedial portal (AMP) provides superior visualization of the ACL's double-bundle structure compared to the anterolateral portal (ALP).
Using the AMP for arthroscopic ACL reconstruction, potentially with an additional medial working portal, facilitates optimal visualization of femoral insertion sites.
This improved visualization aids in precise femoral tunnel placement for ACL reconstruction.