Using the DCS for Subtrochanteric Fractures, contd.

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8. Select the lag screw and assemble the Lag Screw Insertion Assembly. (See "Assembling the Instrumentation") Slide the assembly over the guide pin and into the reamed hole. Seat the centering sleeve in the hole to center and stabilize the assembly, and insert the lag screw by turn- ing the handle clockwise until the 0 mark on the assembly aligns with the lateral cortex. The threaded tip of the lag screw now lies 10 mm from the medial cortex. The lag screw may be inserted an additional 5 mm in porotic bone, until the 5 mm mark aligns with the lateral cortex, for increased holding power.

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