Preparation method of personalized biphase condylar scaffold

Abstract

The invention discloses a preparation method of a personalized biphase condylar scaffold. The preparation method comprises the following steps of separating a mandible digital model by collecting data; selecting data on the opposite side of a lesion area in the mandible digital model, mapping the data to the lesion area in a mirror symmetry manner to obtain a condylar head and neck prosthesis model, and designing and printing a bone phase scaffold according to a condylar tissue structure form; preparing a cartilage phase scaffold; and spraying a compact layer on the surface of the head of the bone phase scaffold, connecting the cartilage phase scaffold with the compact layer through a dissolution-adhesion process to form a compact layer bone-cartilage composite scaffold, constructing a condylar biphase composite scaffold, and after a position retaining handle is designed on the condylar biphase composite scaffold, constructing the personalized biphase bionic condylar scaffold. The problems that the condylar form cannot be recovered and complications of a bone supply area exist in autologous bone graft temporomandibular joint reconstruction are solved, and the problems that the material mechanical property and the degradation period of an existing prosthesis cannot meet clinical requirements are also solved.

Description

technical field [0001] The invention belongs to the technical field of artificial joint design and preparation methods, and in particular relates to a preparation method of a personalized biphasic condyle bracket. Background technique [0002] Ankylosis, trauma, tumors and other diseases often lead to morphological defects and loss of function of the temporomandibular joint. For patients with such bony lesions, surgical treatment is a necessary choice, but there is currently no effective condyle implantation in clinical practice. Or replacement materials, autologous bone grafts or artificial materials are mostly used for replacement, but the temporomandibular joint reconstruction with autologous bone grafts cannot restore the shape of the condyle and there are complications in the bone donor area. It is difficult to achieve the desired effect due to other problems. With the development of tissue engineering, the emergence of dual-phase composite materials provides a new ide...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing a personalized biphasic condyle bracket, which solves the problem that the autologous bone graft temporomandibular joint reconstruction cannot restore the condyle shape and there are complications in the bone donor area

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