Sir,We appreciate the authors1 for showing keen interest in our article.2 Answers regarding the queries raised are as follows:Our technique which included removal of all necrotic cartilage, we did so because this necrotic tissue will be a loose body inside the joint. Further we retained it in addition it loses its healing power. We used collagen sheet as a scaffold only for PRP and creeping of new tissue through the defect is not an alternative to damaged cartilage1.5 cm depth is used as an average, but the idea is to remove all necrotic bone and reach the viable host bone for the graftThree days traction is the time till the drain is removed we found that the traction facilitates and improves the function of the drain, so prevents collection of hematoma inside the joint.