Measuring for the Nail

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Measuring for the Nail One of two methods can be used to measure for nail length:

(a)  Determine the appropriate nail length by subtracting the exposed length of the reaming rod from its overall length of 950 mm. When using a calibrated reaming rod, read the appropriate nail length directly from the rod at the tibial entry point. If the measurement falls between two calibrated lengths, choose the shorter length nail.

(b)  Use the Radiographic Ruler after reduction or on the contralateral leg. Position the image intensifier for an A-P view of the distal tibia. Holding the ruler with a long forceps, place it against the tibia with the distal tip at the level of the physeal scar, or at the desired nail depth; mark the skin at this point. Move the C-arm proximally to the level of the tibial plateau. Reposition the ruler against the tibia with the distal tip at the mark. Under image intensification, read the nail length directly from the ruler, choosing the nail length that is at or just below the level of the entry point.

Confirm the diameter of the selected nail with the Measuring Gauge.
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