抄録
The preoperative planning for pelvic osteotomy was
done on a stereolithography (SLA) model using our
original algorithm, SurgiPlan, which could analyze
images of three-dimensional computed tomography
(3-DCT) and simulate various types of osteotomy.
The subject cases were five women, of whom one
had undergone Pemberton's operation; three, rotational
acetabular osteotomy; and one, rotational
acetabular osteotomy combined with advancement
of the greater trochanter. Although the simulation
with 3-DCT had advantages in processing the
images for visualizing anatomy and lesions, its
images remained two-dimensional. Stereolithography,
on the other hand, was a real 3-D model
which was able to give operators good anatomical
orientation and a sense of security during surgery.
Preoperative planning using a combination of
3-DCT and stereolithography had many cumbersome
aspects, but this combined surgical navigation
method was very useful and helpful in practical
operations.
