Combined type 3D printing limiting navigation template for assisting hip joint trigeminy osteotomy

Abstract

According to the combined 3D printing limiting navigation template for assisting the hip joint trigeminy osteotomy, through the design of the connecting rods with angles and the supporting rods, after all the fixing templates are placed at the corresponding positions, the central acetabulum limiting template is located at the ideal correction position of the acetabulum part after osteotomy. During surgical operation, the position of osteotomy is directly confirmed through the steel nail navigation tube on the supporting rod, the cut acetabulum part bone can be directly rotated or moved after osteotomy, the acetabulum part bone is directly attached to the central acetabulum limiting template, and concentric reduction of the acetabulum and the femoral head is achieved after the acetabulum part bone is rotated to the optimal position. And then fixation after osteotomy is directly conducted through the steel nail imbedding pipe, and operation is easy and convenient. The hip joint of a patient is modeled through the personalized 3D printing technology, then a template is manufactured, the size specification better conforms to the patient, and the correction effect is better.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a combined 3D printing limit navigation template for assisting triple hip joint osteotomy. Background technique [0002] Children's developmental dislocation of the hip is one of the more common congenital lower limb deformities in children. It has a high disability rate and seriously affects the physical and mental health of children, especially in older age. After osteotomy of the ilium, ischium and pubic bone, the direction of the acetabulum is changed to change the acetabulum's containment of the femoral head. The operation is more difficult. [0003] In the actual operation, it is impossible to control which direction the acetabulum rotates after osteotomy and to what extent. If the osteotomy adjustment position is too high or too low, or the direction is wrong, it will affect the rotation of the hip joint and affect the surgical effect. It can cause complication...

AI Technical Summary

Problems solved by technology

[0002] Children's developmental dislocation of the hip is one of the more common congenital lower limb deformities in children. It has a high disability rate and seriously affects the physical and mental health of children, especially in older age. After osteotomy of the ilium, ischium and pubic bone, the direction of the acetabulum is changed to change the acetabulum's containment of the femoral head. Difficult to operate

[0003] In the actual operation, it is impossible to control which direction the acetabulum rotates after osteotomy and to what extent. If the osteotomy adjustment position is too high or too low, or the direction is wrong, it will affect the rotation of the hip joint and affect the surgical effect. Can cause complications such as femoral head necrosis and joint stiffness

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