A 3D-printed surgical guide for individualized precise positioning of the acetabulum

Abstract

The invention discloses a 3D printed surgical guide board for precise positioning of the acetabulum. The acetabular prosthesis acetabular cup component is a hemispherical first guide unit whose size is matched, and the lower part is a circular plate-shaped second guide unit. Inclined abduction angle; the body is used to connect the head and the tail, and its shape can be adjusted according to the actual pelvic length of the patient and specific surgical planning; the tail is a fixing unit that can be fixed to the patient's residual ilium. The surgical guide plate of the invention can not only realize the precise positioning of the assembled acetabular prosthesis after internal hemipelvic resection for patients with malignant pelvic tumors, preserve the anteversion and abduction angle of the native hip joint, and improve the prognosis of patients, but also has low cost and low operation cost. It is simple and has two fixing methods, which can be selected and used according to the actual situation of the patient.

Description

technical field [0001] The invention relates to the field of orthopaedic surgery, and more particularly, to a 3D-printed surgical guide for individualized precise positioning of the acetabulum. Background technique [0002] 3D printing technology, also known as rapid prototyping technology, is a method of providing high-quality radiographic imaging data based on CT scans, assisting design and manufacturing through computer technology, and using adhesive powder materials in a "layer-by-layer, layer-by-layer molding" method. Emerging techniques to accurately generate target models. In recent years, 3D printing technology has become more and more mature, and its cost has been reduced, and its application in the medical field has been increasing, including 3D printing prostheses, 3D printing surgical navigation templates, etc. [0003] The navigation template technology uses 3D printing technology to design and prepare a guiding bone surface contact plate, which helps the surge...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of the existing hip joint reconstruction technology, such as high operating cost, long operation time, and large uncertainty, the present invention provides a 3D printed personalized acetabular precise positioning surgical guide, which can not only realize the treatment of pelvic malignant tumors Precise positioning of the modular acetabular prosthesis after medial hemipelvic resection preserves the anteverted abduction angle of the original hip joint and improves the prognosis of the patient. The cost is low, the operation is simple, and there are two fixation methods that can be adjusted according to the patient’s needs. Choose to use the actual situation

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