Dynamic K-Line Status and Surgical Outcomes in Multilevel Cervical OPLL: A Multicenter Comparative Study.

ABSTRACT: Background/Objectives: To evaluate the clinical and radiological outcomes of surgical interventions stratified by dynamic K-line status and to identify predictors of neurological recovery in multilevel cervical ossification of the posterior longitudinal ligament (OPLL). Methods: This study analyzed 535 patients with multilevel cervical OPLL who underwent anterior cervical discectomy and fusion (ACDF), laminoplasty (LP), or laminectomy with fusion (LF), with a minimum 24 months of follow-up. Patients were classified based on dynamic K-line status-neutral (NK-line) and flexion (FK-line)-into three groups: Group 1 (NK-line [+]/FK-line [+]), Group 2 (NK-line [+]/FK-line [-]), and Group 3 (NK-line [-]/FK-line [-]). Radiographic parameters, JOA scores, and VAS were compared, and mu

SUBMITTER: Shin JJ 

PROVIDER: S-EPMC12842165 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature