Serial | Intervention/Measurement | Time (weeks) |
---|---|---|
1 | Operation | 0 |
 | Peri-operative complications |  |
2 | AP & lateral radiographs | 6 |
 | MRI (subset of sample) |  |
 | Clinical interview |  |
3 | AP & lateral radiographs | 12 |
 | MRI (subset of sample) |  |
 | Clinical interview |  |
4 | AP & lateral radiographs | 52 |
 | MRI (subset of sample) |  |
 | Clinical interview |  |