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The Ø 8 mm IM rod is carefully inserted using the modular
handle to approximately the isthmus of the femoral IM
canal and removed again. It is important to work carefully
to prevent excess pressure in the IM canal.
The IM rod with the modular handle is now removed.
The femoral IM canal is opened further with the Ø 8/14 mm
stepped drill. Note that the drill is positioned at the entry
point of the femoral IM canal, previously determinated by
the IM drill. The drill direction is along the femoral axis. Drill
as far as the stop.
Important
The femoral IM canal, which determines the implants stem
position, must be opened carefully (reference for the
femoral position) to prevent the development of a relative
extension position (risk of notching) or flexion position
(projecting patella).
Preparing the femoral anchorage
Reamers are used carefully and in progressive stages
( starting with «Ø 10» ) to ream to the required stem
diameter and depth.
Important
Reamers
are available in diameter «Ø 10», «Ø 12»,
«Ø 14»,
«Ø 16», «Ø 18» and «Ø 20».
The depth indicator is on the reamer: observe the recessed
notch markings and the depths marked «IM» when using
this technique «IM80», «IM110» and «IM150. The laser
markings are for extramedullary use and are described with
the corresponding surgical technique.
The 40 mm stem length is only available for extramedullary
application.
When using cemented stems, the Ø 12 mm reamer is used
to drill to the desired depth and the corresponding non-
cemented trial stem is used. Cemented stems are available
in 80 mm, 110 mm and 150 mm lengths.
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