The Role of Thoracic Medial Branch Blocks in Managing Chronic Mid and Upper Back Pain: A Randomized, Double-Blind, Active-Control Trial with a 2-Year Followup
Table 3
Therapeutic procedural characteristics with procedural frequency, average relief per procedure, and average total relief in weeks over a period of 2 years.
Group I (50)
Group II (50)
Combined (100)
One year
Average number of procedures per one year (range)
1–5)
1–4)
1–5)
Average total relief per year (weeks) (range)
4–52)
16–52)
4–52)
Average relief per procedure (range)
2–52)
10–26)
(2–52)
Two years
Average number of procedures per two years (range)
1–8)
1–8)
1–8)
Average total relief per two years (weeks) (range)
