Distractable body augmenter capable of being planted through a pedicle for vertebral body reconstruction

A distractable body augmenter capable of being planted through a pedicle of a vertebra for vertebral body reconstruction, comprising:

• an upper planted block, the upper planted block having an insertion portion projecting down from a lower side of an uppermost portion thereof and a screw hole on a front end thereof, the insertion portion having a concavely curved side on a lower end thereof and a plurality of spaced apart raised lines being formed on the concavely curved side of the insertion portion;
• a lower planted block fitted on the upper planted block, the lower planted block having a holding cavity between two lateral portions thereof, the lower planted block having a concavely curved portion on an upper side of a bottom thereof, a plurality of spaced apart raised lines being formed on the concavely curved portion of the lower planted block, the upper planted block being fitted in the holding cavity at the insertion portion thereof;
• and
• a screw element formed with threads, the screw element being screwed into a space between the concavely curved side of the insertion portion and the concavely curved portion of the lower planted block after the planted blocks together have been planted in a vertebra via a planting hole of a pedicle of the vertebra, wherein the insertion portion of the upper planted block has longitudinal fitting trenches on two sides of a front end and a rear end thereof while the lower planted block at a front end has a plurality of holes for connection with a planting tool and an inverted T-shaped gap, and an U-shaped gap at a rear end thereof, the front and the rear ends of the insertion portion being respectively fitted in the inverted T-shaped gap and the U-shaped gap of the lower planted block.