Radiographic progression of arthritis and involvement of the radiolunate (RL) articulation [Larsen scale grading (scale of 1–5)]
| Patient | Preoperative | Postoperative | Middle interval | Final follow-up | Involvement of RL articulation |
|---|---|---|---|---|---|
| 1 | 0 | 0 | 1 | 2 | Y |
| 2 | 0 | 0 | 0 | 0 | N |
| 3 | 0 | 0 | 3 | 5 | Y |
| 4 | 0 | 0 | 0 | 3 | Y |
| 5 | 0 | 0 | 2 | 4 | Y |
| 6 | 0 | 0 | 1 | 2 | Y |
| 7 | 0 | 0 | 2 | 4 | Y |
| 8 | 0 | 0 | 2 | 5 | Y |
| 9 | 0 | 0 | 0 | 3 | Y |
| 10 | 0 | 0 | 2 | 4 | Y |
| 11 | 0 | 0 | 0 | 0 | N |
Preoperative: before index four-corner fusion (4CF); Postoperative: after index 4CF; Middle interval: radiographs closest to halfway between postoperative and final follow-up radiographs. Y: yes; N: no