Related Experiment Video
Updated: Jul 2, 2025
09:14
A Mouse Model of Ankle-Subtalar Complex Joint Instability
Published on: October 28, 2022
1.3K
[Posterolateral instability of the knee joint].
M T Berninger1, T C Drenck2, J Frings3
1Klinik und Poliklinik für Unfallchirurgie und Orthopädie, Universitätsklinikum Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Deutschland. m.berninger@uke.de.
Orthopadie (Heidelberg, Germany)
|February 20, 2024
Summary
Injuries to the knee's posterolateral corner often involve the posterior cruciate ligament, causing instability. Surgical repair, including arthroscopic techniques, can effectively address these complex knee injuries.
Area of Science:
- Orthopedic surgery
- Knee biomechanics
- Sports medicine
Context:
- The posterolateral corner (PLC) of the knee is a complex anatomical region crucial for knee stability.
- PLC injuries frequently occur with posterior cruciate ligament (PCL) ruptures.
- These injuries lead to distinct patterns of knee instability.
Purpose:
- To review the anatomy and biomechanics of the PLC.
- To classify PLC injuries based on resulting instability patterns.
- To discuss surgical management options, including open and arthroscopic reconstructions.
Summary:
- The PLC comprises multiple structures that work synergistically with the PCL for knee stabilization.
- Injuries result in posterolateral rotational instability (Fanelli A) or combined lateral instability (Fanelli B/C).
- Treatment involves isolated popliteus bypass for rotational instability or additional lateral collateral ligament stabilization for combined instability.
Impact:
- Highlights the importance of understanding PLC anatomy for accurate diagnosis.
- Emphasizes the need for tailored surgical approaches based on instability patterns.
- Acknowledges the advancement of arthroscopic techniques for PLC reconstruction, offering less invasive options.
Keywords:
Lateral instabilityPopliteus bypassPosterior cruciate ligamentReconstructive surgical proceduresRotational instabilityMore Related Videos
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