http://www.w3.org/ns/prov#value | - Once the vertebrae V1, V2 have been compressed and/or distracted and the locking mechanism 324 has been engaged so that the position of screws S1, S2 (and vertebrae V1, V2) are maintained in a fixed position with respect to one another, a locking tool, such as but not limited to a screwdriver, etc. (not shown) may be inserted through the passageway 326 in the first member 302 to tighten the set sc
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