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Table 1

Preoperative (PRE), postoperative (POST) and final mean radiographical measurements and differences according to Student’s t or Mann–Whitney’s tests.

Variables PRE p POST p Final p
MP (Good) 25% <0.001 20% <0.001 17% <0.001
MP (Bad) 51% 49% 44%
AI (Good) 24° <0.001 21° <0.001 21° <0.001
AI (Bad) 31° 34° 31°
HSA (Good) 154° 0.35 153° 0.10 151° 0.09
HSA (Bad) 156° 158° 144°
OP (Good) 0.28 0.04 <0.001
OP (Bad)

MP = migration percentage; AI = acetabular index; HSA = head-shaft angle; PO = pelvic obliquity angle.

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