Three-Dimensional Analysis of Spinal Deformities

by Jan Koreska, Dept. of Medical Engrg., Hospital for Sick Children, Toronto, Ontario, Canada; formerly, Research Engr., Research Inst., Hospital for Sick Children, Toronto, Ontario, Canada,
Donald A. Gibson, Chf.; Div. of Orthopedic Surgery, Hospital for Sick Children; and Medical Dir., Ontario Crippled Childrens' Centre, Toronto, Ontario, Canada,
David Robertson, Staff Surgeon; Clincia De Ortopedia Tecamachalco, Mexico,

Serial Information: Journal of the Engineering Mechanics Division, 1978, Vol. 104, Issue 1, Pg. 239-253

Document Type: Journal Paper


Present methods of obtaining quantitative measurements of spinal deformities for the clinical assessment of scoliosis from routine spine radiographs are inaccurate and inadequate. Two-dimensional measurements are used to assess three-dimensional deformities. This paper describes a method of digitizing orthogonal spine radiographs and fitting to the data third order three-dimensional parameter spline functions representing the deformed spine. The method has been used for clinical assessment and monitoring of paralytic spinal deformities at The Hospital for Sick Children for the past 3 yr.

Subject Headings: Three-dimensional analysis | Deformation (mechanics) | Radiography | Parameters (statistics) | Spline (mathematics) | Health care facilities

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