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Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: Surgical accuracy, function, and quality of life of simultaneous versus staged bilateral Total hip Arthroplasty in patients with Osteonecrosis of the femoral head

Fig. 1

A standardized anteroposterior pelvic radiograph of a 39-year-old male patient with bilateral osteonecrosis of the femoral head at 6 months after simultaneous bilateral total hip arthroplasty showing the radiographic measurement of leg-length discrepancy and acetabular cup orientation. The line A indicates the inter-teardrop line as a reference line. The line B is the long axis and the line C is the short axis of the opening ellipse of the acetabular component, respectively

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