previous section: 4/5 page: 1/5 next

4Plate fixation

Put the plate on the dorsal aspect of the proximal fragment, with a threaded drill guide in one of the outer holes.

Insertion of first screw

Mark the plane of the first carpo-metacarpal joint with a thin K-wire or a hypodermic needle. Put the plate on the dorsal aspect of the proximal fragment, with a threaded drill guide in one of the outer holes. Drilling must be parallel to the marker wire (or needle) to ensure that the screw will not penetrate the joint. Confirm using image intensification.
Drill through the threaded drill guide. Remove the drill guide and measure the appropriate screw length with a depth gauge.
Insert the locking screw without completely tightening it.