Table 2.
Comparison between patients treated conservatively and those who underwent surgery concerning the Hardcastle classification as well as the Buehren criteria [3, 5]
| Conservative | Operative | p | |
|---|---|---|---|
| n | 20 | 79 | |
| Hardcastle classification (%) | |||
| A (medial) | 1 (5.0) | 0 (0.0) | |
| A (lateral) | 4 (20.0) | 34 (43.0) | |
| B1 | 1 (5.0) | 5 (6.3) | |
| B2 (partial) | 10 (50.0) | 11 (13.9) | |
| B2 (complete) | 2 (10) | 3 (3.8) | |
| C1 (partial) | 2 (10.0) | 16 (20.3) | |
| C2 (complete) | 0 (0.0) | 10 (12.7) | |
| Buehren criteria (preoperatively) | |||
| Buehren A = normal (%) | 20 (100.0) | 16 (20.3) | < 0.001 |
| Buehren B [mm] (mean (sd)) | 1.70 (0.83) | 3.61 (3.08) | 0.008 |
| Buehren C = normal (%) | 20 (100) | 45 (57.0) | 0.001 |
| Pre-operative Fleck sign = yes (%) | 6 (31.6) | 52 (65.8) | 0.009 |