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Study Design.

A retrospective clinical study was conducted.

Objective.

To investigate the relative safety of anterior microsurgical decompression with iliac strut graft fusion versus laminoplasty for a massive ossified posterior longitudinal ligament in the cervical spine.

Summary of Background Data.

The question of how the treatment for cervical myelopathy associated with a massive ossified posterior longitudinal ligament can be improved remains unclear.

Methods.

Addressing this question involved analyzing the data for 26 patients who had undergone either an anterior (n= 14) or posterior procedure (n= 12) for a large ossified posterior longitudinal ligament with the thickness exceeding 50% of the bony canal diameter (average, 65%; range, 52–81%).

Results.

The two groups showed no statistical difference in preoperative factors including age, duration of symptoms, functional score, maximal occupancy ratio of the …