Dr. Nik Kamarul Arif Nik Kamrulzaman is a distinguished Consultant Orthopaedic Surgeon with a sub-specialty in Traumatology. He is renowned for his pioneering work in cartilage repair, developing innovative single-stage techniques that preserve subchondral bone integrity and promote regeneration, offering alternatives to conventional methods. His expertise also extends to advanced cartilage repair surgeries utilizing calcified cartilage zone debridement with Hyalofast and bone marrow aspirate concentrate. Dr. Nik Kamarul Arif is a Clinical Lecturer at Universiti Kebangsaan Malaysia, actively contributing to research in orthopaedic trauma, including the application of navigation systems in complex pelvic ring fractures and publications on fracture-related infection.