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Fig. 1 | Arthroplasty

Fig. 1

From: High periprosthetic bone mineral density measured in immediate postoperative period may not guarantee less periprosthetic bone loss in the proximal femur after cementless total hip arthroplasty – A retrospective study

Fig. 1

Seven Gruen zones used in Dual-energy X-ray absorptiometrical analysis of preoperative (a) and postoperative (b) periprosthetic BMD. Preoperative and postoperative anteroposterior X-rays of the pelvic were shown in (c and d). On anteroposterior X-ray of the pelvis, the inferior displacement of the femoral stem was evaluated by measuring the changes of the distance between the tip of greater trochanter and interteardrop line (Line a in d) during the follow-up period (a) showsed the appearance of the Ribbed anatomic stem (Waldemar Link GmbH & Co). Seven Gruen zones were used in Dual-energy X-ray absorptiometry analysis of preoperative (b) and postoperative (c) periprosthetic BMD. Preoperative and postoperative anteroposterior X-rays of the pelvic were shown in (d and e). On anteroposterior X-ray of the pelvis, the inferior displacement of the femoral stem was evaluated by measuring the changes of the distance between the tip of greater trochanter and interteardrop line (Line a in e) during the follow-up period 

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