Reduction Techniques
Click image for enlarged view
To aid with manipulation of the distractor, the Universal Chuck with
T-Handle may be attached to the proximal Schanz screw.
Note: Manipulation of the distractor for reduction of the tibia is
similar to that on the femur, although the instrument is oriented
differently. See illustrations of Reduction Techniques in previous section of this guide
beginning here.
These steps need not beperformed in the order given, except for
Step 5, below. To avoid loss of correction, re-tighten all loosened nuts after
each step.
· 1 Distraction
Loosen the proximal Spindle Nut. Under image intensification, apply
distraction by moving the distal Spindle Nut proximally.
· 2 Rotation
Loosen both Spindle Nuts and the knurled nut on the End Piece with
double joint. Correct rotation by simultaneously rotating the Sliding
Carriage and the 14.0 mm Threaded Spindle.
· 3 Valgus-Vanis
Loosen the knurled nut on the distal Holding Sleeve. Correction is
achieved by manipulating the proximal Schanz screw with the
Universal Chuck with T-Handle.
· 4 Anterior-Posterior Angulation
Loosen the wing nut that secures the distal Schanz screw in the distal
Holding Sleeve, and correct the angulation.
· 5 Compression
Loosen the distal Spindle Nut. Under image intensification, apply
compression by moving the proximal Spindle Nut distally.
After reduction, secure all distractor joints by tightening all
connections.
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