Zygomatic arch temporal-mandibular joint glenoid fossa combined remediation prosthesis

Abstract

The invention discloses a zygomatic arch temporal-mandibular joint glenoid fossa combined remediation prosthesis, and the prosthesis comprises a zygomatic bone fixing pterygoid lamina which contacts with a zygomatic bone and is fixed on the zygomatic bone, a temporal bone fixing pterygoid lamina which contacts with the temporal bone and is fixed on the temporal bone, a zygomatic arch connection part, and a skull base projection part which contacts with a skull base. The zygomatic bone fixing pterygoid lamina, the temporal bone fixing pterygoid lamina and the zygomatic arch connection part are respectively connected with the zygomatic arch connection part. The skull base projection part is provided with a glenoid fossa recessed part and baffle plates disposed at two ends of the glenoid fossa recessed part. The prosthesis can be used for repairing the combined loss, caused by the temporal-mandibular joint tumour and congenital malformation, of the zygomatic arch and a temporal-mandibular joint fossa, is more attached to a jaw bone, reduces unnecessary bone grinding, avoids the risks of damages to a skull base and an external auditory canal, greatly reduces the operation time, improves the fixing accuracy and stability, and can achieve the precise restoration of the combine loss of a zygomatic arch temporal-mandibular joint glenoid fossa of a Chinese.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a joint prosthesis for repairing the zygomatic arch temporomandibular joint fossa. Background technique [0002] Temporomandibular joint tumors and congenital malformations (such as first branchial arch syndrome) often cause joint defects of the zygomatic arch and temporomandibular joint fossa, which require repair and reconstruction. Compared with autologous bone grafting, artificial prosthesis repair has the advantages of accuracy, stability and non-absorption, and no need to open a second operation area. It has become a common means of repair and reconstruction in developed countries such as the United States. However, there is currently no prosthesis designed according to the range and characteristics of the Chinese defect. [0003] In view of the lack of corresponding prosthetic prostheses in China at present, surgical bone extraction and bone grafting are not accurate eno...

AI Technical Summary

Problems solved by technology

However, there is no prosthesis designed according to the range and characteristics of Chinese people's defects.

[0003] In view of the lack of corresponding prosthetic prostheses in China at present, surgical bone extraction and bone grafting are not accurate enough, and it is easy to damage the skull base and maxillary external auditory canal, leading to the risk of cerebrospinal fluid leakage and hearing loss, as well as blind and unnecessary bone grinding, which urgently needs to be done. Invented a zygomatic arch temporomandibular joint fossa joint repair prosthesis to accurately repair the zygomatic arch temporomandibular joint fossa joint defect

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