KNEE JOINT-LOCKING MECHANISM
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Revision as of 11:29, 1 January 2023 by Dr Appukutty Manickam (talk | contribs) (Imported from text file)
SUMMARY
Hyperextension of the knee is terminated by the locking mechanism of the knee - medial (anti-clockwise) rotation of the femur on the tibial plateau. Lateral (clockwise) rotation by the popliteus unlocks the knee.Medial rotation tightens 4 ligaments:
1. ACL - the first to become taught.
2. MCL - prevents further rotation.
3. LCL - prevents further rotation.
4. Oblique popliteal ligament - prevents further rotation.
Reference(s)
R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone.
Gray, H., Carter, H.V. and Davidson, G. (2017). Gray’s anatomy. London: Arcturus.
