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Thoracic spine, sclerosis dorsal part of the facet joints
 Sclerosis of the posterior part of the facet joints
PATIENT'S POSTURE The patient lies prone.
PRODUCT Per level 2 ml
- 1.5 ml P2G
Phenol 2 %
Dextrose 25 %
Glycerol 30 %
Water 43 %
- 0.5 ml lidocaine 2 %
SYRINGE 5 ml syringe
NEEDLE 0.7x40 mm (22 G 1 ½)
TECHNIQUE The spinous processes are identified and marked, and so are the midline and the interspinous ligaments. The facet joints between T1-T5 and T10-T12 lie level with the interspinous ligament of the level above, at 1.5 cm from the midline. The facet joints between T6-T9 lie level with the spinous process of the vertebra of the level above, at 1.5 cm from the midline. The needle is thrust in vertically ; it hits bone after about 3 cm. It should now to be re-orientated in such a way as to feel a capsular resistance first and then bone. Here 1 ml is infiltrated in contact with the bone. This is repeated at the other side of the same level and then at the adjacent level.
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