◆ Minimally invasive channel system: lateral and cephalad/caudadexpanding function and channel equipped with light source system can be used to establish unisegmentaland multisegmental channels
◆ Minimally invasive screw-rod system: realize vertebral de-rotation, unisegmental lifting and repositioning, and multisegmental pressurized expanding with minimally invasive technique
◆ This system is mostly suitable for stabilization surgery for thoracic vertebra and abdominal vertebratrauma, degeneration, deformity, tumor, tuberculosis, etc
◆ Active general infection, gestation, anabolic disorder, and severe osteoporosis
◆ Local infection at implant site
◆ Generalizedmetastatic tumor, resulting in osteolytic defect of adjacent vertebral body
◆ Drug abuse, mental disease, general neurological disease, and immune suppressiondisorder
◆ Allergy to metals
◆ Patients are unwilling to restrict activity or disobey medical advice