title: Authors' reply to Joshi.
authors: Department of Orthopaedic Surgery, Martina Hansens Hospital, PO Box 823, N-1306 Sandvika, Norway.
authors: Nina Jullum
authors: NJ
authors: Kise
authors: Norwegian Research Centre for Active Rehabilitation, Oslo, Norway Division of Orthopaedic Surgery, Oslo University Hospital, Norway Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway.
authors: May Arna
authors: MA
authors: Risberg
authors: Division of Orthopaedic Surgery, Oslo University Hospital, Norway Faculty of Medicine, University of Oslo Oslo Sports Trauma Research Centre, Norwegian School of Sport Sciences, Oslo, Norway.
authors: Lars
authors: L
authors: Engebretsen
authors: Research Unit for Musculoskeletal Function and Physiotherapy, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.
authors: Ewa M
authors: EM
authors: Roos