Table 3.
Radiographic parameters at the time of diagnosis and the 2-year follow-up in patients with unilateral affected hips. Values are count (%) unless otherwise specified
| Factor | All | Surgically treated | Non-surgically treated | ||
|---|---|---|---|---|---|
| at diagnosis n = 309 | at diagnosis n = 120 | at 2-year follow-up n = 84 | at diagnosis n = 189 | at 2-year follow-up n = 117 | |
| Lateral pillar | |||||
| A | 38 (12) | 12 (10) | 4 (6) | 26 (14) | 14 (12) |
| B | 77 (25) | 32 (27) | 26 (37) | 45 (24) | 46 (39) |
| B/C | 26 (8) | 16 (13) | 15 (21) | 10 (5) | 17 (15) |
| C | 19 (6) | 8 (7) | 26 (37) | 11 (6) | 24 (21) |
| Before fragmentation | |||||
| stage a | 147 (48) | 52 (43) | NA | 95 (51) | NA |
| Missing data | 2 (1) | – | 13 (15) | 2 (1) | 16 (14) |
| Reimer’s migration percentage b | – | – | 20 | – | 20 |
a
Elizabethtown classification 1a–2a.
b
Reimer’s migration percentage, normal range: 17–27%.