- Thesacrumisanormalblockvertebrae.Mygreat-grandmotherwasbentnearlyhorizontalfromcollapsedvertebrae.ObjectiveToinvestigatethemethodforpercutaneousinterbodyfusionofinterspaceoflumbarvertebraeunderlocalanaesthesiawithexpandinglumbarvertebraefusioncage.On...
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