Condylar prosthesis for a temporo-mandibular joint

摘要

The condylar prosthesis (10) for a temporo-mandibular joint includes a mandibular implant (12), which is intended to be rigidly attached to the branch of a mandible, and a joint head (16), which is intended to serve as a replacement mandibular condyle, the mandibular implant (12) including an anchoring stem (14) permitting the use of an intramedullary connection in the summit of the branch of the mandible, and the distal end of the anchoring stem (14) being offset towards the front of the prosthesis (10) with respect to the joint head (16) and in a median plane of the prosthesis (10), the condylar prosthesis (10) being characterized in that the anchoring stem (14) follows a curved profile along its length and in the median plane of the prosthesis, the direction of curvature of the anchoring stem being oriented towards the front of the prosthesis.

主权项

1. A Condylar prosthesis (10) for a temporomandibular joint, with the condylar prosthesis (10) comprising:
a mandibular implant (12) attachable with the branch (20) of a mandible (22), the mandibular implant (12) having a body (28) comprised of a joint head (16) connected to an anchoring stem (14), wherein,
the joint head (16) is configured to serve as a substitute mandibular condyle,anchoring stem (14) makes possible the use of an intramedullary connection in the top (18) of the branch (20) of the mandible (22), with a distal end (24) of the anchoring stem (14) being offset toward the front (AV) of the prosthesis (10) relative to the joint head (16) and in a median plane (PM) of the prosthesis (10), and the anchoring stem (14) following a curved profile (PC) in its length (L14) and in the median plane (PM) of the prosthesis, with the direction of curvature (DC) of the anchoring stem (14) being oriented toward the front (AV) of the prosthesis, and the mandibular implant (12) further comprises an outer connection plate (26) that is integral with the body (28) of the mandibular implant (12), the connection plate (26) comprising at least two perforations (31) that emerge for the passage of surgical screws.