Download Orthopaedic Application User`s Guide

Hip Endoprostheses/Biometry - Procedure
Step 8 Define biometrical points 8
Requirements:
1. Pelvis overview with iliac crest and sufficient femur shaft
length
2. Caution: You must correctly input the height and weight
of the patient (into Planning information). Without this
information, the definition of 10 biometrical points is not
possible.
Result: Calculation and display of the preoperative values.
L●
R
M
L●
R
M
L●
R
M
L●
R
To define the first point, the upper central part of processus spinosus
L5 (Base of os sacrum), use the left mouse button.
To return to the Module tool, use the right mouse button.
Define the position of the point Free of your choice.
To define the second point, the lower mid-symphysis, use the left
mouse button.
To return to point 1, use the right mouse button.
Define the position of the point Free of your choice.
To define the third point the hip head center point/preoperative
rotation center (HJC), use the left mouse button.
To return to point 2, use the right mouse button.
Define the position of the point Free of your choice.
To define the fourth point, ca. 2cm distal lesser trochanter minor (in
the imagined direction of pull of the rectus femoris muscle towards
the medial upper edge of the patella), use the left mouse button.
To return to point 3, use the right mouse button.
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