Patella Preparation
Figure 7
9
Patella Resection (cont.)
Note: The patella size and thickness will determine if a
standard or thin patella should be used.
• Firmly clamp the patella with the mill handle paying
careful attention not to tilt the patella.
• Attach the appropriate size-specific patella reamer
(3 peg, 32-480158–32-4801640) or single peg,
(32-480151–32-480156) to the reamer shaft (32-486802
(Figure 7).
• Attach the proximal shaft to a power drill.
• Insert the reamer basket into the mill bushing and
allow the reamer’s central bit to rest on the apex of the
patella bone.
• Attach the appropriate thickness magnetic spacer
(marked, “Bit”) to the adjustable depth stop.
• Set the adjustable stop by depressing the button on its
side and slide the stop down until the bottom of the
spacer touches the mill bushing.
Note: The magnetic spacer bit includes the depth of
the peg. Do not sink the drill bit prior to setting the
adjustable stop.
• Remove the magnetic spacer and ream until the
adjustable stop touches the mill bushing.
• Remove the reamer assembly and then disengage
the mill handle by pulling the thumb trigger towards
the handle.
• 3-peg patellar component
- Prepare the inset surface using the appropriate
sized surface reamer.
- Establish the resection depth using the magnetic
spacer marked with a red dot.
- The 3-peg drill guide is tapped into the prepared
patella inset and the 1/4" patellar drill is used to
make the holes for the component pegs.
Summary of Contents for VANGUARD XP
Page 1: ...Surgical Technique ...
Page 39: ......
