Fig. 7From: Cortical hypertrophy with a short, curved uncemented hip stem does not have any clinical impact during early follow-upAnteroposterior hip radiographs of a 65-year-old woman with primary OA (a), directly postoperatively (b), 1 year (c), and 4 years (d) after surgery. The postoperative follow-up ((c) and (d)) shows the typical cortical hypertrophy mainly located in Gruen zone 3 and 5 and radiolucency < 2 mm in Gruen zone 1Back to article page