Application of posture-aware surgical tool assisted screw placement in orthopedic surgery of adolescent idiopathic scoliosis

Objective

This study summarized and analyzed the clinical data, preoperative preparation, surgical process and postoperative recovery of patients, to explore the clinical effect of posture-aware surgical tool in adolescent idiopathic scoliosis orthopedic surgery.

Methods

This study demonstrated the whole process of using posture-aware surgical tools to assist the placement of screws in orthopedic surgery of adolescent idiopathic scoliosis. A 14-year-old and 8-month-old male with height 166 ​cm and weight 60 ​kg was diagnosed as Lenke type 1A adolescent idiopathic scoliosis. The preoperative X-ray films of the patients showed that the Cobb angle was 66°, CSVL-C7PL (Central Sacral Vertical Line -C7 plumb line) was 4 ​mm, SVA (sagittal vertical axis) was 5 ​mm. The operative fixed segment was T5∼L3 vertebral body. Renaissance and other three-dimensional software were utilized for screw placement angle, entry point and other related information before operation. The use of posture-aware surgical tools during surgery can accurately select screw length, type and screw placement angle, as planned by using three-dimensional software before operation.

Results

The entire operation process was smooth. The intraoperative blood loss was about 600 ​ml, and the operation time was about 445 ​min. A total of 18 screws were placed during the whole operation.The patient's Cobb Angle was 8.94°, CSVL-C7PL was 2 ​mm, and SVA was 3 ​mm on postoperative radiographs.

Conclusion

The implantation of pedicle screw assisted by posture-aware surgical tool is safe and effective with a smooth operation process and favorable patient outcomes.