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Main steps of drilling and implantation of the external fixator
(A and B) Drilling the hole for the first pin.
(C) Screwing a pin into the fixator before inserting.
(D) Screwing the assembled part into the femur.
(E) Drilling through the pin bearings in the fixator.
(F) Insertion of the second pin.
(G and H) Drilling and inserting the third and fourth pin.
