Locating device and method for acetabulum rotating center
A positioning device and positioning method technology, applied in the direction of joint implants, joint implants, etc., can solve problems such as the difficulty in positioning the acetabular rotation center, and achieve the effects of improving the success rate, scientific design, and simple structure
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[0015] Embodiment 1: A positioning device and its positioning method for the center of acetabular rotation, the positioning device includes a handle 1 and outriggers 2, there are three outriggers 2, the bottom end of the handle 1 is provided with a universal joint 3, and the outriggers 2 The universal joint 3 is connected with the handle 1, and the outrigger 2 rotates around the universal joint 3. The outrigger 2 is a telescopic structure;
[0016] The center of rotation of the acetabulum is located by the following steps:
[0017] (1) Before total hip replacement surgery, use computer-aided technology to accurately locate the acetabular rotation center on the affected side of the patient;
[0018] (2) Three fixed bony anatomical landmarks are simulated on the hip joint, one of which is the positive 12 o'clock position of the acetabulum, and the other two are two points at the notch gap of the acetabulum. Connect lines to the three marker points respectively, measure and reco...
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