title: Author's reply.
authors.affiliation: Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Vivek Machhindra
authors.initials: VM
authors.lastname: Morey
authors.affiliation: Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Divesh
authors.initials: D
authors.lastname: Jalan
authors.affiliation: Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Ravi
authors.initials: R
authors.lastname: Mittal
authors.affiliation: Department of Radiology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Shivanand
authors.initials: S
authors.lastname: Gamangatti