AN ORTHOPAEDIC IMPLANT AND AN ORTHOPAEDIC IMPLANT SYSTEM INCORPORATING SAME

摘要

An orthopaedic implant (1, 2) is provided for use with or as part of an orthopaedic implant system. The implant (1, 2) comprises a supporting surface (6, 9) adapted for supporting engagement with a part of die orthopaedic implant system. The implant (1, 2) also comprises an outer surface defining a self-tapping thread (3) adapted for implantation of the implant (1, 2) directly into a bone cavity by screwing. Means (7, 8; 19) adapted for engagement of the implant (1, 2) by a tool are provided to enable the implant to be implanted by screwing. The implant (1, 2) is intended to prevent or to mitigate post-operative displacement (translation and rotation) of an implant system and, therefore, post-operative loosening of the system. The implant (1, 2) is primarily intended for use in long bones in the human or animal body. A set of such implants (1, 2) is also disclosed wherein each of said implants (1, 2) is adapted for supporting engagement with a different portion of the orthopaedic implant system. Likewise, an orthopaedic implant system comprising a first implant in the form of a stem adapted for implantation in a long bone and at least one implant (1, 2) is also disclosed.