Segmental motion at the peak of the ossification foci is independent risk factor except for mal-alignment and thick ossification foci for poor outcome after laminoplasty for cervical ossification of the posterior longitudinal ligament: analyses in patients with positive K-line, lordotic alignment, and lower canal occupying ratio.
Junya SaitoMasao KodaTakeo FuruyaSatoshi MakiYasushi IjimaMitsuhiro KitamuraTakuya MiyamotoSumihisa OritaKazuhide InageFumio HasueTakayuki FujiyoshiKoshiro KamiyaYoshikazu IkedaFumitake NakajimaMitsuhiro HashimotoHiroshi NoguchiHiroshi TakahashiMasashi YamazakiSeiji OhtoriPublished in: Journal of orthopaedic surgery and research (2020)
Large preoperative segmental ROM at the peak of the OPLL is an independent factor that has significant impact on poor surgical outcome after laminoplasty for K-line (+) OPLL.