A method for making a personalized osteotomy navigation template for thoracolumbar deformity through the posterior approach

Abstract

The invention relates to a method for making a thoracolumbar vertebra deformity posterior individualized osteotomy navigation template. The method is characterized by comprising the following steps: reconstructing a three-dimensional model of whole spine and pelvis based on a medical image; performing a simulate operation on the three-dimensional model; simulating osteotomy to recover normal physiological curvature of the spine; and making an osteotomy template according to the osteotomy position and size of the simulate operation; and printing the osteotomy template by 3D printing. The osteotomy template is individualized; in the operation, the subjectivity in selecting the osteotomy position and size and the repeated operation perspective and the like are avoided; the method is suitable for the kyphosis orthopaedics of old thoracolumbar vertebra fracture, orthopaedics of spinal tumor, osteotomy orthopaedics of ankylosing spondylitis and the like; and moreover, the operation is easy, the requirements on doctors are relatively low, the operation risk is lowered, the operation efficiency is increased, and the operation cost is reduced.

Description

technical field [0001] The invention relates to the field of computer aided technology and medical devices, in particular to a posterior approach individualized osteotomy navigation template for thoracolumbar kyphosis and a manufacturing method thereof. Background technique [0002] Kyphosis deformity due to old thoracolumbar fractures, spinal tumor deformity, and obligatory spondylitis often require osteotomy and correction through the posterior approach. The purpose of the surgery is to correct the deformity, relieve pain, stabilize the spine and protect the nerves, and create condition. [0003] Posterior osteotomy orthopedic surgery is the first choice for the above-mentioned diseases, but it is difficult to determine the osteotomy position and osteotomy size during the operation, the postoperative sagittal curvature recovery is poor, and the patient's symptoms are not relieved. Obviously wait. [0004] Traditionally, in this type of surgery, the operator simply measur...

AI Technical Summary

Problems solved by technology

[0003] Posterior osteotomy orthopedic surgery is the first choice for the above-mentioned diseases, but it is difficult to determine the osteotomy position and osteotomy size during the operation, the postoperative sagittal curvature recovery is poor, and the patient's symptoms are not relieved. obviously wait

[0004] In the traditional operation of this type, the operator simply measured the X-ray film before the operation to estimate the approximate osteotomy angle, and performed the osteotomy based on the experience of the operator during the operation, which was highly random and subjective.