Table 2.

Fixation in THA in patients 30 years of age and younger

Type of THA	Group I	Percent	Group II	Percent	Total	Percent	p value
Cemented	230	69.5	92	22.7	322	43.5	4.35 × 10−37
Cementless	99	29.9	279	68.9	378	51.3	6.61 × 10−26
Hybrid	2	0.60	20	4.9	22	3.0
Reverse hybrid	0	0	14	3.5	14	1.9
Total	331		405		736