Fig. 4

a Front view of the bone window with the HA/PLLA mesh plate device fixed by a screw. b Lower view of the bone window with the HA/PLLA mesh plate device fixed by a screw
a Front view of the bone window with the HA/PLLA mesh plate device fixed by a screw. b Lower view of the bone window with the HA/PLLA mesh plate device fixed by a screw