Zimmer Biomet Zimmer Natural Nail, Руководство пользователя

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22 | Zimmer Natural Nail – Cephalomedullary Asia Nail Surgical Technique
Distal Targeting For Asia Nails
Color coded instruments are also used for distal
targeting of short nails. For the targeting guide Asia,
instruments marked orange are utilized to place
the distal screws. The chart above details the color
coded instruments that are used for distal targeting
and distal screw placement.
Warning: The targeting guide Asia is designed
to target the distal static (ST) and dynamic (DY)
holes in Asia nails. As the guide is designed to
work with both left and right ST and DY holes, care
must be taken to ensure that the correct targeting
holes (left or right) are used for drilling and screw
placement. At this point in the surgery, with the
guide oriented horizontally and the nail in place,
the correct holes are on the top (anterior) side of
the guide. The letters “L” (left) and “R” (right) are
embossed in orange on the appropriate side of
the guide where the screw cannulas should be
placed to insert these screws.
Assemble the 4.3 mm drill sleeve to the 8.0 mm
screw cannula. Pass the cannula through the
appropriate hole in the targeting guide to target the
Instrument Type Asia Guide
8.0 mm Screw Cannula Orange–Orange
4.3 mm Drill Sleeve Orange–Orange–Red
4.3 mm Drill Bit Orange–Orange–Red
Screwdriver Orange–Orange
Screw Depth Gauge Orange
distal hole or slot. The hole is labeled ST is for the
Static Hole. The hole labeled DY is for the Dynamic
Slot.
After pressing the tip of the screw cannula against
the skin, make a small incision at that point through
the skin and fascia lata. Spread the soft tissue down
to the bone. Advance the cannula down to the bone.
Caution: Do not impact on the cannula, as the
tip of the cannula may skive along the bone and
prevent accurate targeting.
Utilize the 4.3 mm drill bit to drill through both
cortices of bone. The depth of the hole can be
measured using calibrations on the drill bit. Another
option is to remove the drill bit and the drill sleeve
and then use the screw depth gauge to measure
the depth of the hole.
Caution: In cases where hard cortical bone is
encountered, or at the surgeon’s preference, a
5.0 mm tap can be used to ease insertion of the
screws.