Ortho Preferred Malpractice Insurance
Home » Muscles Tendons » Anteromedial Rotatory Stability

Anteromedial Rotatory Stability

- Definition:
    - medial plateau of the tibia rotating excessively forward & externally on femur as the joint opens on the medial side;
    - torn structures:
           - MCL;
           - posterior oblique ligament;
           - ACL;
           - medial meniscus tear;

- Exam:
    - anterior drawer test: (for anteromedial instability)
            - tibia rotates anteriorly & externally as joint opens on the medial side;
    - rotation:
            - positive drawer test in neutral tibial rotation;
            - drawer test is accentuated in 30 deg of external rotation;
            - drawer test is reduced w/ tibia in 15 deg of Internal Rotation;

- Treatment:
    - when anteromedial rotatory instability is present, reefing of posteromedial  capsule is considered

The role of incompetence of the anterior cruciate and lateral ligaments in anterolateral and anteromedial instability. A biomechanical study of cadaver knees.

Combined anterolateral-anteromedial rotatory instability of the knee.   

Classification of knee ligament instabilities. Part I. The medial compartment and cruciate ligaments.

Acute anteromedial rotatory instability. Long-term results of surgical repair.  

Classification of ligament injuries: why an anterolateral laxity or anteromedial laxity is not a diagnostic entity.

Range of Motion and Quadriceps Muscle Power After Early Surgical Treatment of Acute Combined Anterior Cruciate and Grade-III Medial Collateral Ligament Injuries