Qi Q
Department of Orthopaedics, Third Teaching Hospital, Beijing Medical University.
Zhonghua Wai Ke Za Zhi. 1993 Jul;31(7):407-10.
The discs of 15 fresh human cadaveric spines (L1-S1) were radiated with Nd: YAG laser energies varying from 1000 to 3000J in 5 groups. The volume ablation rates, changes in intradisc pressure, and changes, in temperature at four important sites around the disc were measured during the laser radiation. The ablated volume was significantly greater at higher radiating energies. There was a significant decrease in the intradisc pressure after ablation of nucleus pulposus tissue. The increase in temperature of adjacent tissue was very low, not exceeding 3 degrees C. The results of this study provide a basis for the use of lasers in percutaneous lumbar discectomy, and in clinical practice in the future.
对15具新鲜人类尸体脊柱（L1-S1）的椎间盘进行分组，用能量在1000至3000焦耳之间变化的Nd:YAG激光进行照射。在激光照射过程中，测量了椎间盘的体积消融率、椎间盘内压力变化以及椎间盘周围四个重要部位的温度变化。在较高的辐射能量下，消融体积显著更大。髓核组织消融后，椎间盘内压力显著降低。相邻组织的温度升高非常低，不超过3摄氏度。本研究结果为激光在经皮腰椎间盘切除术及未来临床实践中的应用提供了依据。
