Table 4.

Healthcare Utilization with 1 Year after Surgery.

	N (%)
Emergency Department visits
0	506 (81%)
1	81 (13%)
2	16 (3%)
3+	16 (3%)
X-ray studies
<2	276 (44%)
2–5	285 (46%)
6–10	59 (9%)
11–15	3 (0%)
CT imaging studies
0	522 (84%)
1–2	90 (14%)
3+	11 (2%)
MRI studies
0	465 (75%)
1–2	144 (23%)
3+	14 (2%)
Epidural/other spinal injections
0	562 (90%)
1	33 (5%)
2	15 (2%)
3	6 (1%)
4	5 (1%)
Pain management referrals
0	560 (90%)
1	56 (9%)
2	7 (1%)