Table 4.

Distribution of impingement and/or instability factors

Impingement factors	Number of hips
	Instability factors
	0	1	2	3	4	5	Total
0	0	3	3	2	2	0	10 (8.9%)
1	13	10	6	0	0	0	29 (25.9%)
2	13	21	6	0	0	0	40 (35.7%)
3	18	4	0	0	0	0	22 (19.7%)
4	10	0	0	0	0	0	10 (8.9%)
5	1	0	0	0	0	0	1 (0.9%)
Total	55 (49.1%)	38 (33.9%)	15 (13.4%)	2 (1.8%)	2 (1.8%)	0 (0%)	112 (100%)