Chi Y L, Hong R K, Xu H Z
Department of Orthopedics, Second Affiliated Hospital, Wenzhou Medical College.
Chin Med J (Engl). 1992 May;105(5):433-7.
A new scoliotone composed of screw, socket, distraction rod, lateral mass and compression rod can produce free movement in three different planes and fix the vertebral column in three-dimensions. The instrument has a strong force of fixation, distraction, compression and anti-rotation and it can be locked in any degree angle. Preliminary clinical application in 10 cases showed that when the spinal curvature (Cobb's angle) was less than 50, the average correction rate of scoliosis was 78.2% and that of the hump was 90%; when Cobb's angle was within 50-100 degrees, the average curve correction was 68.2%, and the hump correction 87.7%; when Cobb's angle was 100 degrees, the average curve correction was 63.3%, and the hump correction 82%. The vertebral column needed no external fixation after the operation. Biomechanical characteristics of the vertebral pedicle, and the technical features are discussed.
一种由螺钉、套筒、撑开杆、侧块和加压杆组成的新型脊柱侧弯矫治器可在三个不同平面产生自由活动，并在三维空间固定脊柱。该器械具有强大的固定、撑开、加压和抗旋转力，且可锁定在任何角度。对10例患者的初步临床应用显示，当脊柱侧弯（Cobb角）小于50°时，脊柱侧弯平均矫正率为78.2%，驼背平均矫正率为90%；当Cobb角在50°至100°之间时，平均曲线矫正率为68.2%，驼背矫正率为87.7%；当Cobb角为100°时，平均曲线矫正率为63.3%，驼背矫正率为82%。术后脊柱无需外固定。文中还讨论了椎弓根的生物力学特性及技术特点。
