Zimmer Biomet Arcos Modular FemoralRevision System, Хирургическая техника

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Arcos Broach/Calcar Proximal Body
Surgical Technique
Figure 6 Figure 7 Figure 8
Proximal Reamer
Transition Reamer
Calcar/Broach Proximal Bodies & PPS Distal Stems
Sterile Field Technique
Preparation of the Metaphysis
To prepare the proximal femur for the tapered region
of the PPS distal stem and proximal body, assemble
the transition reamer that is the same size as the
desired distal stem into the proximal reamer and press
down on the collar at the top of the proximal reamer to
securely lock the two instruments together (Figure 7).
Ream the proximal femur with the modular (transition/
proximal) reamer, sequentially increasing the size of the
proximal reamer, until the desired size (A–F) and the
60 mm proximal body height is achieved. The 60 mm
etch mark of the proximal reamer should align with the
tip of the greater trochanter (Figure 8).
Preparation of the Diaphysis
To prepare the femur for a PPS coated distal stem,
select flexible or thin shaft reamers and sequentially
ream the femur two cortical diameters or 2–3 cm
below the distal defect, increasing size until cortical
“chatter” is achieved (Figure 6).
Note:
When utilizing flexible reamers, ream the
canal in 0.5 mm increments until cortical “chatter”
is achieved. The final reamer diameter should be
line-to-line or 0.5 mm larger than the diameter of
the desired implant, depending on bone quality.
Note: Reaming over a guide is recommended.
The Arcos distal reamers are designed to prepare
the femur for a bowed distal stem and are
cannulated to accommodate a guide wire.