Table 4 Demographics and radiographic predictors of failure (conversion to hip replacement)
Predictors of failure | Conversion to hip replacement | p-value | |
|---|---|---|---|
Demographic findings | Gender (% Male) | Yes: 1/4 (25%) | 0.42 |
No: 1/11 (9%) | |||
Age at time of hip arthroscopy | Yes: 38.9 | 0.01 | |
No: 26.6 | |||
BMI (kg/m2) | Yes: 26.4 | 0.75 | |
No: 26.6 | |||
Time from PAO to hip arthroscopy (years) | Yes: 4.6 | 0.65 | |
No: 3.6 | |||
Previous ipsilateral hip surgery | Yes: 1/4 (25%) | 0.93 | |
No: 3/11 (27%) | |||
Radiographic findings | Pre PAO LCE° | Yes: 12 | 0.28 |
No: 24 | |||
Pre PAO Tönnis angle° | Yes: 24 | 0.10 | |
No: 7 | |||
Post PAO LCE° | Yes: 27 | 0.01 | |
No: 40 | |||
Post PAO Tönnis angle° | Yes: 7 | 0.02 | |
No: -1 | |||
Ottawa classification | Yes: 1 posterior and 3 global uncoverage | 0.71 | |
No: 1 anterior, 4 posterior and 6 global uncoverage | |||
Tönnis classification | 0: 3/12 (25%) | 0.77 | |
1: 1/3 (33%) | |||
Surgical findings and procedures | Beck chondral damage | Yes: 1 grade 4 and 3 grade 5 | 0.17 |
No: 5 grade 1, 1 grade 2, 3 grade 4 and 2 grade 5 | |||
Labral debridement only | Yes: 3 hips | 0.31 | |
No: 5 hips | |||
Labral repair | Yes: 1 hip | 0.31 | |
No: 5 hips | |||
FOCP | Yes: 1 hip | 0.42 | |
No: 1 hip | |||
Adhesiolysis | Yes: 1 hip | 0.93 | |
No: 3 hips |