The results of percutaneous intradiscal high-pressure injection of saline in patients with extruded lumbar herniated disc: comparison with microendoscopic discectomy
Pain Medicine,

Fukui S et al. – Intradiscal high–pressure injection of saline (IDHP) produced significant effects on patients with radicular pain, leading to the improvement of visual analog pain scale (VAS) and Japanese Orthopedic Association (JOA). Although IDHP displayed slightly less efficacy than microendoscopic discectomy (MED), IDHP appears to be an alternative as a nonoperative treatment for a lumbar intervertebral disc extrusion.

Methods
  • 45 patients with primarily radicular pain due to an extrusion type disc herniation who underwent either IDHP (N = 24) or MED (N = 21) were enrolled in the study.
  • The visual analog pain scale (VAS) and the Japanese Orthopedic Association (JOA) scoring system for the treatment of low–back disorders were assessed at pretreatment, 2 weeks posttreatment, and JOA was again taken 3 months posttreatment.
  • Patients were asked to choose their satisfaction from four alternatives, “excellent,”“good,”“fair,” and “poor,” 3 months after treatment.

Results
  • Mean VAS decreased from 65.1 to 18.8 mm in the IDHP group, and from 80.6 to 16.5 in the MED group.
  • Mean JOA recovery rates at 3 months posttreatment were 67.2 and 75.2, and patients with “excellent” or “good” results were 73.7% and 78.6% in the IDHP and in MED, respectively.

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