1.Derangements of kneeDr. Zameer Ali

2. Internal derangements of the knee (IDK)
It is a term used to cover a group of disorders involving disruption of the normal functioning of the ligaments or cartilages (menisci) of the knee joint.
3. ANATOMY OF KNEE JOINT
Bones & Articulations Largest joint in the body Synovial hinge type of a joint
Mainly articulation of four bones ;femur, tibia, patella,
fibula
Each articulation covered with hyaline cartilage;
The primary articulation between Condyles of femur & tibia
4. LIGAMENTS
Dense structures of connective tissue that fasten bone to bone &stabilise the knee.
Inside the knee are two major ligaments-anterior & posterior cruciate ligaments
5.

Two other ligaments arelocated outside the knee Medial & Lateral collateral ligaments. They act to stabilise knee sideways motion.

6. The patellar tendon connects lower part of patella with upper part of tibia. Part of this tendon is used in Reconstructing a torn ACL