“…9,[15][16][17][18][19]21,[23][24][25][26][27][28][29] These percentages ranged from 30% to 89%, with 12 studies demonstrating reduction in opioid use in 40% to 72% of participants. 9,[15][16][17][18][19][20][21]23,24,27,28 Mean or median opioid use decreases ranged from 4.1 morphine milligram equivalents (MME) to 120 MME, with 11 studies reporting decreases from 18.91 MME to 57 MME, 9,14,18,[20][21][22][23][24][25][26]28 and 9 studies reporting decreases from 18.92 MME to 30.6 MME. 9,14,18,[20][21][22][24][25][26] There were 4 studies that provided data on the preimplantation opioid dose that significantly increased likelihood of opioid use discontinuation at 12 months postimplantation.…”