Triple deformity of Knee : Mnemonic

Triple deformity of knee consists of 3 components:

1. Flexion deformity at knee

2. Posterolateral subluxation of tibia

3. External rotation of tibia over femoral condyle

Mechanism behind triple deformity of knee:

triple deformity mechan ism

Causes of Triple deformity of knee:

Mnemonic: TRIPLE

1. Tuberculosis (TB) knee – commonest cause

2. Rheumatoid arthritis

3. ITB contracture

4. Polio

5. Low clotting capacity/

6. Excessive bleeding i.e. hemophilia

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