Anterolateral Ligament Reconstruction or Extra-Articular Tenodesis: Why and When?

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Knee Biomechanics

Background:

• Residual rotational laxity is a common issue after anterior cruciate ligament (ACL) reconstruction.
• Advances in understanding knee anterolateral soft tissue restraints have spurred interest in extra-articular techniques.
• Current extra-articular methods include lateral extra-articular tenodesis and anterolateral ligament reconstruction.

Purpose of the Study:

• To review the relevant anatomy and biomechanics of anterolateral knee structures.
• To discuss the rationale and indications for extra-articular augmentation in ACL reconstruction.
• To outline a specific extra-articular augmentation procedure.

Main Methods:

• Review of anatomical and biomechanical literature on knee rotational stability.
• Description of current extra-articular reconstruction techniques.
• Presentation of a specific surgical technique for extra-articular augmentation.

Main Results:

• Detailed anatomical and biomechanical principles supporting extra-articular augmentation.
• Indications for employing this technique in ACL reconstruction.
• Step-by-step description of the surgical procedure.

Conclusions:

• Extra-articular augmentation offers a potential solution for residual rotational laxity post-ACL reconstruction.
• Understanding knee biomechanics is crucial for selecting appropriate augmentation techniques.
• The described procedure provides an additional option for enhancing rotational stability.