Ossification of the Yellow Ligament Combined with Ossification of the Posterior Longitudinal Ligament at the Cervicothoracic Junction.

Background: Both ossification of the yellow ligament (OYL) and the ossification of the posterior longitudinal ligament are relatively rare clinical entities. We report a extremely rare case of the spinal canal stenosis because of OYL, OPLL and listhesis at the cervicothoracic junction.

Case Description: A 69-year-old man had progressive pain over his bilateral axillar portion and right lower extremity for 1 year.