PHILOS + PHILOS Long. - ShoulderDoc.co.uk
PHILOS + PHILOS Long. - ShoulderDoc.co.uk
PHILOS + PHILOS Long. - ShoulderDoc.co.uk
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6<br />
Determine the length of the proximal screws and predrill<br />
screw hole<br />
a. Using the Kirschner wire<br />
Check the position of the Kirschner wire. The tip of the Kirschner<br />
wire should be located in the subchondral bone (5–8 mm below<br />
the joint surface). Slide the Philos direct measuring device for<br />
Kirschner wire 1.6 mm over the Kirschner wire and determine the<br />
length of the required screw.<br />
Required instruments<br />
Philos Direct Measuring Device 323.060<br />
Depth Gauge 319.010<br />
Drill Bit 2.8 mm 310.284<br />
Remove the direct measuring device, the Kirschner wire, and the<br />
centering sleeve for Kirschner wire. Using a drill bit 2.8 mm,<br />
predrill the screw hole. Remove the drill bit and the drill sleeve.<br />
Alternative<br />
b. Using the depth gauge<br />
Remove the Kirschner wire and the centering sleeve for Kirschner<br />
wire. Using a drill bit 2.8 mm (310.284), predrill the screw hole<br />
through both <strong>co</strong>rtices. Remove the drill bit and the drill sleeve.<br />
Determine the screw length through both <strong>co</strong>rtices using<br />
the depth gauge. Deduct 10 mm from the measured reading.<br />
50<br />
60<br />
50 60<br />
9
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