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- Title
The oblique lateral ligament of the knee-demonstration of a 'new' knee ligament.
- Authors
Dodds, A. L.; Gupte, C. M.; Williams, A. M.; Amis, A. A.
- Abstract
Recent techniques to restore knee stability following anterior cruciate ligament injury include changing femoral tunnel position, and 'double bundle' reconstruction. However, they can still not fully prevent the 'pivot shift' post operatively. This may be due to damage of other, extra-articular anterolateral structures, leading to rotatory instability, as evidenced by the Segond fracture. The anatomy and biomechanics of the anterolateral knee structures are still poorly understood. Aims: to accurately determine the anatomy of the anterolateral structures of the knee. Methods: systematic literature review and dissection of 6 fresh frozen cadaveric knees. Results: the published literature was confusing, with a wide variety of names used for various anterolateral knee structures. Dissection revealed a consistent structure running anterodistally from near the lateral epicondyle of the femur to an attachment on the rim of the tibial plateau half way between Gerdy's tubercle and the fibular head. This structure has been named the oblique lateral ligament. The oblique lateral ligament ran over the lateral collateral ligament (LCL) and was distinct from the capsule. Distally, some fibres from the LCL and short head of biceps femoris also inserted in the same area. It moved isometrically. The mean length was 59mm; the mean length of the LCL was 64mm. Discussion: manipulation of the specimens suggested that the oblique lateral ligament may have an important role in resisting anterolateral rotatory instability. The nomenclature of the tissues in this area is confused, and the identification of the oblique lateral ligament will allow further work into its role.
- Subjects
KNEE anatomy; ANTERIOR cruciate ligament; LIGAMENT surgery; DISSECTION; TERMS &; phrases; SYSTEMATIC reviews; COLLATERAL ligament
- Publication
Muscles, Ligaments & Tendons Journal (MLTJ), 2012, p68
- ISSN
2240-4554
- Publication type
Article