Martin Haimerl,Lars Dohmen,Melanie Wegner,Sabine Gneiting
申请号：
US13997388
公开号：
US20130282014A1
申请日:
2011.01.20
申请国别(地区):
US
年份:
2013
代理人:
摘要：
The present invention relates to a method for planning the positioning of a ball joint prosthesis, in particular a hip joint prosthesis, wherein the prosthesis includes a stem and a cup and the method comprises the following steps: determining the geometric shape of the joint socket, particular the acetabulum, and the geometric shape of the cup which is to be placed defining target areas where the cup has to abut the bony structure of the joint socket, in particular the acetabulum, in order for the cup to be sufficiently fixed determining actual areas of the cup which will abut the bony structure of the joint socket, in particular the acetabulum, when the cup is placed defining a requirement for the position and/or orientation of the cup on the basis of the position and/or size of the target areas and/or actual areas. The present invention also relates to a method for optimising the positioning of a ball joint prosthesis, in particular a hip joint prosthesis, wherein the prosthesis includes a stem and a cup and the method comprises the following steps: defining at least one requirement for the position and/or orientation of the cup calculating an optimum position and/or orientation of the cup on the basis of all the defined requirements being fulfilled.
