抄録
We investigated and compared surgical outcomes and postoperative complications in 106 patients who underwent spinous process-splitting laminoplasty and en-bloc open door laminoplasty. Seventy-nine patients were male and 27 were female. Their age ranged from 32 to 84 years. Fifty-eight patients underwent spinous process-splitting laminoplasty [cervical spondylotic myelopathy (CSM) in 41 patients, ossifiction of posterior longitudinal ligament (OPLL) in 9, and cervical hernia in 8] and 48 patients underwent en-bloc open door laminoplasty (CSM in 36 patients, OPLL in 7, and cervical hernia in 5). Preoperative and postoperative JOA (Japanese Orthopaedic Association) scores, improvement ratio in JOA scores, surgery time, amount of hemorrhage, and postoperative complications were investigated.
For patients who underwent spinous process-splitting laminoplasty and en-bloc open door laminoplasty, the average preoperative JOA score was 10 and 11 points, the average postoperative JOA score was 14 and 14 points, and improvement ratio was 50 and 52%, respectively. The average surgery time and average hemorrhage did not differ signifficantly between groups.
However, the incidence of liquorrhea tended to be higher in the spinous process-splitting laminoplasty group.
