Visit type | Screening | Operation/treatment | Follow-up | |||
---|---|---|---|---|---|---|
Visit | 1 | 2 | 3 | 4 | 5 | 6 |
Visit week | − 4~0 weeks | 0–2 day | 2 weeks | 12 weeks | 24 weeks | 52 weeks |
 |  | ± 5 days | ± 4 weeks | ± 8 weeks | ± 8 weeks | |
Informed consent | â– | Â | Â | Â | Â | Â |
Demographics* | â– | Â | Â | Â | Â | Â |
Inclusion/exclusion | â– | Â | Â | Â | Â | Â |
Randomization | Â | â– | Â | Â | Â | Â |
Operation | Â | â– | Â | Â | Â | Â |
MRI (or CT)†| ■| ■|  |  |  |  |
Simple radiographs | â– | Â | â– | â– | â– | â– |
ODI | â– | Â | â– | â– | â– | â– |
EQ-5D-5L | â– | Â | â– | â– | â– | â– |
VAS | â– | Â | â– | â– | â– | â– |
POSAS | Â | Â | Â | â– | â– | â– |
Other surveys‡ |  |  | ■| ■| ■| ■|
Adverse events | Â | â– | â– | â– | â– | â– |