Thoracic Ossification of the Posterior Longitudinal Ligament: Thickness Changes After Posterior Decompression and Corrective Fusion in a Longitudinal Study With up to 10-Year Follow-up
Study Design Retrospective cohort study. Objectives Thoracic ossification of the posterior longitudinal ligament (OPLL) is traditionally considered progressive, raising concern that the ossified mass left after posterior decompression and instrumented fusion (PDF) may enlarge. We characterized long-term CT-based change...