Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.
3D-printed titanium spinal disc replacement, similar to those used to treat degenerative disc disease. Artificial disc replacement (ADR), or total disc replacement (TDR), is a type of arthroplasty. It is a surgical procedure in which degenerated intervertebral discs in the spinal column are replaced with artificial devices in the lumbar (lower) or cervical (upper) spine. 3D printing (or additive manufacturing, AM) is any of various processes used to make a three-dimensional object. Stereolithography is an additive manufacturing or 3D printing technology used for producing models, prototypes, patterns, and production parts up one layer at a time by curing a photo-reactive resin with a UV laser or another similar power source. In 3D printing, additive processes are used, in which successive layers of material are laid down under computer control. These objects can be of almost any shape or geometry, and are produced from a 3D model or other electronic data source.