Larsen grade | Number of joints (%) | HU angle Mean (SD) | HU subluxation, mm Mean (SD) |
0 | 36 (24) | 9.2 (1.8) | −1.4 (1.6) |
1 | 37 (25) | 10.3 (2.9) | −0.8 (1.3) |
2 | 49 (33) | 13.4 (4.1) | 0.6 (1.6) |
3 | 13 (9) | 15.2 (7.4) | 2.2 (1.8) |
4 | 4 (3) | 24.5 (11.7) | 5.8 (4.5) |
5 | 9 (6) | 4.4 (13.0) | 7.9 (6.8) |
All | 148 (100) | 11.5 (6.1) | 0.5 (3.3) |