F Kl Leung1, T W Lau2, G Wy Yuen3, E Mt Chan4, P Chan5, R Yh Lam6. 1. Department of Orthopaedics and Traumatology, The University of Hong Kong. 2. Department of Orthopaedics and Traumatology, Queen Mary Hospital. 3. School of Nursing, The University of Hong Kong. 4. Department of Occupational Therapy, Queen Mary Hospital. 5. Central Nursing Department, Queen Mary Hospital. 6. Physiotherapy Department, Queen Mary Hospital.