Sacrum bearing block for rachidian osteosynthesis

Abstract

Abstract This block comprises:   - an eyelet (36) for receiving a first screw (38) and having a cylindrical hole (37) with an axis (X5) of inclination such that when the block (29) is placed on the sacrum the screw (38) is inserted in the sacral plateau and towards the upper axis thereof,   - a U-shaped body (32) delimiting a channel (34) for receiving a rod, and a plug (7) for locking the rod (8) in this body,   - a hole (33) for the passage of a second screw (42) whose axis (Y5) is divergent with respect to the axis (X5) of the hole of the eyelet, in such a way as to be oriented towards the iliac mass when the block is placed on the sacrum. This block and its two screws (38, 42) ensure a secure anchoring of the rod of the device on the sacrum, by virtue of the penetration of the screws into solid regions of said sacrum. This avoids practically any risk of loosening and, as a result of this, avoids a second surgical intervention. <IMAGE>

Inventors

• 👤 Daniel Chopin

Bibliographic Details