Deformity of hip in stage of tubercular synovitis stage is ?
**Core Concept**
Tubercular synovitis of the hip refers to the early stage of tuberculosis infection in the synovial membrane surrounding the joint. In this stage, the infection is primarily confined to the synovium, and the bone and cartilage have not yet been significantly affected.
**Why the Correct Answer is Right**
The correct answer is a result of the inflammatory response caused by the tubercular infection. In tubercular synovitis, the synovial membrane becomes inflamed, leading to the production of excess synovial fluid. This fluid accumulation can cause the hip joint to become swollen and painful. As the infection progresses, the hip joint may become loose and unstable, leading to a deformity. **Option C** describes the most common deformity associated with tubercular synovitis of the hip, which is a flexion, abduction, and external rotation deformity.
**Why Each Wrong Option is Incorrect**
**Option A:** This deformity is not typically associated with tubercular synovitis of the hip. An adduction deformity is more commonly seen in conditions that cause shortening of the femur.
**Option B:** This deformity is not a characteristic feature of tubercular synovitis of the hip. A flexion deformity is more commonly seen in conditions that cause muscle imbalances or contractures.
**Option D:** This deformity is not typically associated with tubercular synovitis of the hip. A flexion, abduction, and internal rotation deformity is not a characteristic feature of this condition.
**Clinical Pearl / High-Yield Fact**
In tubercular synovitis of the hip, the deformity is often described as a "pseudoparalysis" of the hip, where the patient has a normal range of motion but is unable to bear weight on the affected extremity due to pain and discomfort.
**Correct Answer: C. Flexion, abduction, and external rotation deformity.**