Table II.
Radiographic parameters
| Radiographic metric | Entire cohort (N = 71) | PAO+HA (N = 39) | PAO+arthrotomy (N = 32) | P-Value |
|---|---|---|---|---|
| LCEA (pre-operative) | 0.021a | |||
| N | 71 | 39 | 32 | |
| Mean (SD) | 16.3 (6.1) | 17.6 (5.8) | 14.6 (6.2) | |
| Median | 18.0 | 19.0 | 15.0 | |
| Range | (−3.0 to 25.0) | (-3.0 to 25.0) | (0.0 to 23.0) | |
| LCEA (post-operative) | 0.112a | |||
| N | 51 | 25 | 26 | |
| Mean (SD) | 31.5 (6.1) | 29.8 (4.9) | 33.2 (6.7) | |
| Median | 30.0 | 30.0 | 33.5 | |
| Range | (14.0 to 47.0) | (14.0 to 39.0) | (22.0 to 47.0) | |
| Tönnis angle (pre-operative) | <0.001a | |||
| N | 71 | 39 | 32 | |
| Mean (SD) | 16.8 (9.6) | 14.1 (10.6) | 20.1 (7.2) | |
| Median | 14.0 | 11.0 | 20.5 | |
| Range | (5.0 to 71.0) | (5.0 to 71.0) | (6.6 to 35.0) | |
| Tönnis angle (post-operative) | <0.001a | |||
| N | 51 | 25 | 26 | |
| Mean (SD) | 5.5 (5.6) | 2.2 (3.9) | 8.7 (5.1) | |
| Median | 5.0 | 0.0 | 8.7 | |
| Range | (0.0 to 20.0) | (0.0 to 16.0) | (0.0 to 20.0) | |
| Tönnis Grade (pre-operative) | 0.042b | |||
| 0 | 49 (69%) | 23 (59%) | 26 (81%) | |
| 1 | 22 (31%) | 16 (41%) | 6 (19%) | |
| Tönnis Grade (post-operative) | 0.189b | |||
| 0 | 45 (88%) | 20 (80%) | 25 (96%) | |
| 1 | 6 (12%) | 5 (20%) | 1 (4%) |
aWilcoxon.
bχ2.
PAO, periacetabular osteotomy; HA, hip arthroscopy.