The STL file was from a CT scan in 1980 of a 80 year old female that in 1978 had compression fractures at L1 and T12. Kyphoplasty was used to repair the compression fractures. After two years there was calcium buildup around the kyphoplasy repairs.
This model has been submitted to www.embodi3D.com, an on-line respository of medical STL files and is available at no cost.
