A Plastic Universal Acetabular Accurate Positioning Surgical Guide

Abstract

The invention discloses a plastic universal acetabular precise positioning surgical guide plate, the guide plate includes a head, a body and a tail; the head includes a first guide unit and a second guide unit, the first guide unit is a The hemispherical structure of the acetabular prosthesis and the size of the acetabular cup assembly, the second guiding unit is a circular plate-shaped structure with a diameter larger than the first guiding unit; the body includes a first connecting unit and a second connecting unit; the first connecting unit The unit is a curved adjustable metal sheet with wider ends and a thinner middle, which can be shaped and adjusted according to actual needs; the second connection unit is a metal plate with several cylindrical slots on one side; the tail is an independent fixed The unit, the fixing unit is a metal steel plate, and a plurality of screw holes and a plurality of cylindrical protrusions are arranged at intervals on the metal steel plate. The invention can realize the precise positioning of the modular acetabular prosthesis after hemipelvic resection for patients with pelvic malignant tumors, preserve the anteverted abduction angle of the original hip joint, and improve the prognosis of patients.

Description

technical field [0001] The invention relates to the field of orthopaedic surgery treatment, in particular to a plastic universal acetabular precise positioning surgical guide plate. Background technique [0002] Malignant tumors of the pelvis are divided into primary malignant pelvic bone tumors and metastatic tumors. The former is more common with cartilage-derived tumors (such as chondrosarcoma, etc.), of which the iliac bone is the predilection site, followed by the periacetabulum; metastases are mainly derived from breast cancer , kidney cancer, etc. Pelvic tumors have a high malignancy rate and tend to have local recurrence and metastasis. In addition, the complex local anatomy, including some major vascular and neural structures, as well as the intestinal and urinary tracts, makes it a high risk of complications during surgical resection. In the past decade, with the great progress of imaging technology, neoadjuvant therapy, surgical technology and new prosthesis pre...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the existing technology of hip joint reconstruction after hemipelvicectomy, such as high preparation cost, great uncertainty, and inability to adjust in real time according to the actual situation during the operation, the present invention provides a plastic universal acetabular precise positioning surgical guide, which The surgical guide plate can not only realize the precise positioning of the modular acetabular prosthesis in patients with pelvic malignant tumors after hemipelvic resection, preserve the anteverted abduction angle of the native hip joint, and improve the prognosis of patients, but also has simple operation, low preparation cost, and can Repeated use, can be adjusted and matched according to the actual situation of the patient

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