| 摘要 |
<p>An apparatus (30) and method for using such apparatus to quantify the spatial relationship between two landmarks on two different objects which are moveably engaged. The apparatus and method have particular application in quantifying the spatial relationship between two rotatably engaged objects which are capable of moving (or being moved) about their engagement in any and all planes and are therefore useful in the performance of partial or total hip replacement procedures to ensure that the length of a patient's leg remains the same both prior to and following insertion of a prosthesis.</p> |
