[1] Univ Melbourne, St Vincents Hosp Melbourne, Dept Surg, Level 2,Clin Sci Bldg,29 Regent St, Fitzroy, Vic 3065, Australia
[2] Univ Melbourne, Dept Physiotherapy, Melbourne, Vic, Australia
[3] Griffith Univ, Sch Hlth Sci & Social Work, Brisbane, Qld, Australia
[4] Royal Brisbane & Womens Hosp, Physiotherapy Dept, Brisbane, Qld, Australia
[5] Curtin Univ, EnAble Inst, Perth, WA, Australia
[6] Arthrit & Osteoporosis Western Australia, Perth, WA, Australia
[7] Sir Charles Gairdner Hosp, Physiotherapy Dept, Nedlands, WA, Australia
[8] Univ Melbourne, St Vincents Hosp, Dept Med, Melbourne, Vic, Australia
[9] Univ Melbourne, St Vincents Hosp, Dept Rheumatol, Melbourne, Vic, Australia
[10] Univ Otago Wellington, Dept Med, Wellington, New Zealand
[11] Te Whatu Ora Hlth New Zealand Capital Coast & Hutt, Wellington, New Zealand