Usher Parsons (1788-1868) and His 19th-Century Understanding and Surgical Treatment of Spinal Curvatures.

Usher Parsons was a prominent surgeon in the 19th century. However, his contributions to the understanding and treatment of spinal curvatures have been largely forgotten. Herein, we review Parsons' theories, understanding, and treatment strategies for treating abnormal spinal curvatures. This glimpse into history offers insight into the thought processes and surgical strategies that were available in the early 19th century. It is pioneers in this field, such as Usher Parsons, on which our current understanding of spinal curvatures and its treatment is built.