Kumar, a 31 yrs old motorcyclist sustained injury over his Right hip joint. X-ray revealed a posterior dislocation of the Right hip joint. The clinical attitude of the affected lower limb will be –
**Question:** Kumar, a 31-year-old motorcyclist sustained injury over his Right hip joint. X-ray revealed a posterior dislocation of the Right hip joint. The clinical attitude of the affected lower limb will be -
A. Swing the affected limb away from the body
B. Swing the affected limb towards the body
C. Swing the affected limb downwards and inwards
D. Swing the affected limb upwards and outwards
**Correct Answer:**
**Core Concept:** Posterior dislocation of the hip joint is a specific type of hip joint dislocation where the head of the femur is displaced posteriorly in relation to the acetabulum. This results in instability and a characteristic clinical examination finding.
**Why the Correct Answer is Right:**
In a posterior dislocation of the hip joint, the affected limb will be in a position where the knee and ankle are flexed, the hip is extended, abducted, and internally rotated. This is because the dislocation causes the femoral head to move posteriorly, leading to an unstable joint and a specific clinical examination finding.
**Why Each Wrong Option is Incorrect:**
A. Swing the affected limb away from the body (Incorrect) - A posterior dislocation would cause the limb to be in the position described above.
B. Swing the affected limb towards the body (Incorrect) - This is the opposite of the correct position due to the dislocation.
C. Swing the affected limb downwards and inwards (Incorrect) - This position is not specific to a posterior dislocation and may not be the correct position of the limb.
D. Swing the affected limb upwards and outwards (Incorrect) - Similar to option B, this is the opposite of the correct position due to the dislocation.
**Clinical Pearl:**
To remember the correct positioning of the affected limb in a posterior dislocation of the hip joint: "Flex, Extend, Abduct, and Internal Rotate" (FEAR). This mnemonic can help medical students and physicians remember the correct position of the affected limb in a posterior dislocation, ensuring accurate examination and proper treatment.