DHS Surgical Technique, contd.


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8. Select the DHS/DCS Lag Screw and assemble the Lag Screw Insertion Assembly. (See "Assembling the Instrumentation," page 20.) Slide the assembly over the guide pin and into the reamed hole. Seat the Long Centering Sleeve in the hole to center and stabilize the assembly. Insert the lag screw by turning the handle clockwise, until the zero mark on the assembly aligns with the lateral cortex. The threaded tip of the lag screw now lies 10 mm from the joint surface. The lag screw may be inserted an additional 5 mm in porotic bone, for increased holding power and additional controlled collapse.


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