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Table 2: 
Relationship between changes in extent of bone marrow edema (BME) in treated vertebral compression fractures (VCF) and corresponding decreases in visual analog score (VAS) for pain and use of analgesics in the 3 follow-up intervals after percutaneous vertebroplasty (PV) in 31 patients (subgroup A)
Follow-up Interval after PV
0–3 mo3–66–12 mo
Change in BME extent
No. of VCF with BME312017
Decrease90%45%41%
Similar10%55%59%
Increase———
Mean decrease in VAS6.10.30.2
Decrease100%19%29%
Similar—71%55%
Increase—10%16%
Change in analgesic use
Decrease82%10%7%
Similar18%84%87%
Increase—6%6%