Initial finding seen in knee TB: (A) Reduction of joint space, (B) Increase in joint space, (C) Degeneration of cailage, (D) Bone resorption
Answer is B. Increase in joint space is initial finding seen in tuberculosis of knee joint. Triple knee deformity also occurs in knee TB. Triple knee deformity is flexion, external rotation, valgus at knee, associated with posterior subluxation of tibia.