Prof. Arora is an internationally known figure in Orthopaedics. He has been performing Joint Replacements from 1988, more than 25 years of experience in Joint Replacement. Teaching in medical college and training orthopaedic doctors, has provided him with vast surgical and clinical experience and expertise. He has wide-ranging skills in Knee and Hip Replacement surgeries. He is known for his sound clinical judgment and fine surgical skills. He was the first surgeon to start PINLESS Computer Navigated Total Knee Replacements in North India. He is regularly performing primary, complex and revision (Pinless Computer Navigated) Knee and Hip Replacement Surgeries. He is one of the very few surgeons of India, who can perform Autologus Chondrocyte Implantation (replacement of damaged cartilage by patient own cartilage, after culturing it in the medium).