| 摘要 |
A method of manufacture of a prosthetic device e.g. a hip joint prosthesis to be implanted in a particular bone cavity (11) comprises: preparing an image of the bone cavity, usually an x-ray image: providing a template which defines the required shape of an implant. In one embodiment one of a supply of template sheets having reference lines thereon can be lined-up with corresponding references on the image, and the required implant outline is marked on the sheet by any suitable manual marking means. In an alternative a template is selected from a range of templates of a general shape appropriate to the implant to be fitted in the bone cavity (11), and is compared with the image in order to determine whether it constitutes a suitable match. Then, the required shape of implant is manufactured, or selected from a preformed range of already manufactured implants corresponding with the range of templates. |
