✅ Posterior Cruciate Ligament (PCL) Reconstruction: Single Bundle Technique
1. Anatomy of the PCL Bundles:
- The anterolateral bundle arises anteriorly from the lateral margin of the medial femoral condyle and extends up to the roof of the intercondylar notch.
- The posteromedial bundle attaches slightly more medially and posterior to the anterolateral bundle.
2. Single-Bundle Reconstruction Technique:
- Aims to reconstruct the more prominent anterolateral bundle.
- Femoral Tunnel Placement:
- Located in the anterior half of the native PCL insertion site.
- Near the femoral insertion of the native anterolateral bundle.
- Typically at the 1 o'clock position for a right knee, or 11 o'clock for a left knee.
- Approximately 8-10 millimeters from the articular margin.
3. Assessing Tunnel Placement:
- Using a grid system, the insertion of the anterolateral bundle is around:
- 40% in the shallow-deep direction.
- 14.5% in the high-low direction.
4. Limitations of Single-Bundle Technique:
- It does not fully limit posterior displacement of the tibia at 90 degrees of flexion, as the posteromedial bundle is not reconstructed.
Skeletal Radiol. 2014 Dec;43(12):1659-68.
Semin Musculoskelet Radiol. 2016 Feb;20(1):43-51
Magn Reson Imaging Clin N Am. 2022 May;30(2):261-275
"Visualizing MSK Radiology: A Practical Guide to Radiology Mastery"
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