Zimmer Biomet Zimmer Natural Nail, Руководство пользователя

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24 | Zimmer Natural Nail – Cephalomedullary Asia Nail Surgical Technique
Freehand Technique for Long Nails
Insert the free hand 4.3 mm drill bit (red) into the
distal targeting device. Finger tighten the set screw.
Position the C-arm in order to get a lateral view of the
distal femur. Adjust the angle of the C-arm so that
the hole through the nail appears as a perfect circle
on the monitor. Bring the tip of the drill bit to the skin
and use the C-arm to center it over the hole that you
desire to place a screw through. Make a stab wound
at this point and dissect down to the bone. Place the
tip of the drill bit against the bone. Verify that the tip
of the drill bit is in the center of the hole. Align the
drill bit with the C-arm beam. Tap the drill bit into
the bone using the mallet.
Remove the distal targeting device. Slide the free
hand tissue protection sleeve over the drill bit.
Attach the drill to the free hand 4.3 mm drill bit and
advance the drill bit through the bone. Verify that
the drill bit has gone through the hole in the nail.
Remove the drill bit. Measure the depth of the hole
using the free hand screw depth gauge. Insert the
appropriate length screw using the screwdriver.
If using the captured screwdriver, place the
appropriate screw on the 3.5 mm hex and tighten
the screw to the captured screwdriver by turning
the knob next to the handle clockwise (Figure 35).
Caution: If using the captured screwdriver, do
not torque the captured screwdriver beyond the
calibration line next to the handle.
Caution:
Do not drive the screws into the bone
under power, as damage to the bone, screws and
nail could result.
Repeat these steps to insert additional distal screws.
Figure 35