Table 2.
Comparison of open and arthroscopic reduction
| Variable | Open (59 hips) | Arthroscopic (19 hips) | Exact significance (2-sided) chi-square |
|---|---|---|---|
| Length of reduction | 1 hr 30 mins | 2 hrs 17 mins | p = 0.000* |
| Reduction with concomitant osteotomies, % (n/N) | 21 (11/52) | 32 (6/19) | p = 0.365 |
| Intraoperative transfixing of the hip, % (n/N) | 47 (25/53) | 0 (0/19) | p = 0.000 |
| Obstacles to reduction, % (n/N) | |||
| Resection of hypertrophic ligamentum teres | 87 (46/53) | 95 (18/19) | p = 0.672 |
| Resection of hypertrophic pulvinar | 92 (49/53) | 100 (19/19) | p = 0.567 |
| Incision to resection of hypertrophic transverse ligament | 55 (29/53) | 42 (8/19) | p = 0.811* |
| Capsulotomy or capsular release | 81 (43/53) | 89 (17/19) | p = 0.497 |
| Tenotomy of the iliopsoas muscle | 43 (23/53) | 5 (1/19) | p = 0.002 |
| Inverted labrum | 40 (21/53) | 5 (1/19) | p = 0.007 |
| Adductor tenotomy | 19 (10/52) | 10 (2/19) | p = 0.494 |
*
Asymptotic (2-sided) chi-square