Leipan,
It's been years since I was really close to the OR techniques, so I will only speculate based on what I learned from patients within this community.
1) adhesion barrier: the adage "less is more" fits here. Early on, meshes were used and some proved disastrous, complications and law suits followed.
2) AMP vertebroplasty (bone ceramics) if the bones are weak: if cracked, yes. But not for restoring bone mass or density. This is more popular with Euro surgeons.
3) thrombin agents to reduce surgical bleeding: not sure, but blood thickness/viscosity is carefully managed pre-op; any bleeding is obviously monitored and managed in the OR.
4) bone wax to remodeled bone or adr preparation site to prevent osteophytes from forming? Again, more of a Euro practice. Early on, there were infection problems.
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