Liu Bo, Tian Wei, Wang Yong-qing, Li Qin, Hu Lin, Li Zhi-yu, Yuan Qiang
Department of Spinal Surgery, Jishuitan Hospital, Beijing100035, China.
Zhonghua Wai Ke Za Zhi. 2005 Jun 15;43(12):766-9.
To study the results of using coralline hydroxyapatite (CHA) in cervical posterior laminoplasty operation.
Two hundred and fifty-six patients underwent cervical spinous process-splitting laminoplasty using CHA. All patients had been followed up over 3 months. One hundred and forty-two patients were followed up at least 2 years. All patients had spinal stenosis at least at 3 levels or OPLL. The average follow up time was 34.6 months.
The CHA grafts were stable between the split spinous processes. The union rate of CHA was 83.5%. After operation, the spinal cord moved dorsally, and the anteroposterior compression ratio had been improved from 0.19 to 0.42. No apparent kyphosis occurred. The JOA score improvement rate was 58.3%. There were 24 patients (17%) with axial symptom.
Cervical posterior laminoplasty operation using coralline hydroxyapatite may achieve good results.
研究珊瑚羟基磷灰石（CHA）在颈椎后路椎板成形术中的应用效果。
256例患者采用CHA行颈椎棘突劈开椎板成形术。所有患者均获随访3个月以上，其中142例患者随访至少2年。所有患者均存在至少3节段的椎管狭窄或后纵韧带骨化。平均随访时间为34.6个月。
CHA植骨块在劈开的棘突间保持稳定。CHA融合率为83.5%。术后脊髓向后移位，前后径压迫率从0.19改善至0.42。未出现明显后凸畸形。日本骨科学会（JOA）评分改善率为58.3%。有24例患者（17%）出现轴性症状。
采用珊瑚羟基磷灰石行颈椎后路椎板成形术可取得良好效果。
