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1.
Rotate the patella to 90°. Trim tissue surrounding the
patella using electrocautery.
2.
Use a rongeur to remove osteophytes and reduce the
patella to its true size. The electrocautery should also
be used to release soft tissue attachments to the
estimated level of resection.
3.
Measure patellar thickness with the patellar calipers.
Note: The ANTHEM™ resurfacing patella is 9mm thick
for all sizes (Figure 25).
4.
Subtract 9mm from this measured thickness. This is
the amount of bone that will remain after resection
(Figure 25a).
5.
Set the patella resection guide for the amount of bone
that should remain after resection. The guide is set at
this level by turning the knurled knob (Figure 25a).
Resurfacing patellar preparation
For example:
A.
Measure the overall thickness of the patella with
the patellar caliper. For this example, the patella
measures 25mm.
B.
Subtract the thickness of the ANTHEM resurfacing
patellar component. In this example, 9mm (25mm -
9mm = 16mm). The guide should be set at 16mm.
Figure 25
Figure 25a
Содержание Syncera Anthem
Страница 1: ...Surgical Technique...
