Book excerpt: Diagnosis and Treatment of Spine Deformities in Children at Specialized Centre -- Session 5: Rationalized Design of Individualized Treatment -- Biomechanical Simulations for Planning of Scoliosis Surgery -- Clinical Assessment of AIS -- Determination of Fixation Level of Osteosynthesis System with Knowledge Base -- 3D" Brace Treatment: "3D" Immediate Effect On Thoracic. Thoracolumbar and Lumbar Scoliotic Curves -- Treatment of Thoracolumbar and Lumbar Idiopathic Scoliotic Curves with the Progressive Action Short Brace (P.A.S.B.)Analysis of Results -- 3D Correction of Trunk Deformity in Patients with Idiopathic Scoliosis Using Cheneau Brace -- Social Effects of Boston Bracing -- Appendix. Clinical Application of 3-D Evaluation of Scoliosis -- Pre-IRSSD meeting Workshops held at Sainte-Justine Hospital, Montreal, Canada, 27 June, 1998. -- Workshop 1: Biomechanical Modelling of Scoliosis: What are the Priorities? -- Workshop 2: Usefulness of Computer Assisted Measurements During Surgery: Should we Continue? -- Workshop 3: Imaging Techniques, which Way to Go: X-Ray, CT Scans, MRI, Surface Topography, Etc.? -- Workshop 4: Aetiology and pattern of spinal deformities: should we continue to study biomechanical and 3D factors? -- Author Index