HumanTech - Smart German Solutions
8
Insertion of the pedicle screws
Determine the approach positions of the
pedicle screws. The optimum position is at the
intersection of the transverse process and the
pars interarticularis.
The pedicle screws are implanted and their
position verified by means of an X-ray image.
More information about the introduction of the
pedicle screws can be obtained in the respective
operation manuals of the applied dorsal system.
Removal of the ligamenta flava
Incise the skin at the centre line, after lateral
preparation and location of the spinous process
and the plate of the respective segment or
segments.
Das Ligamentum flavum wird mit einer Kürette von
der Vorderseite der Lamina entfernt (Fig. 2).
Fig. 1
Fig. 2
Fig. 3
Preparing the aperture for the posterior
approach
Retain as much as possible of the facets, as these
stabilise the intervertebral segment. Perform a
laminotomy on the medial side of the facet with
the osteotome or high speed drill.
Hold back the dura mater to open an aperture of
approx. 13 mm in the intervertebral space.
Surgical Technique ADONIS
®
-PLIF
De Mossel 11a, 1723 HZ Noord-Scharwoude |
