Original Research
Utility of Judet Oblique X-Rays in Preoperative Assessment of Acetabular Periprosthetic Osteolysis: A Preliminary Study
Am J Orthop. 2007 July;36(7):E107-E110
Author and Disclosure Information
Adrian Thomas, MD, Noah J. Epstein, MD, Kathryn Stevens, MD, and Stuart B. Goodman MD, PhD
Dr. Thomas is Orthopaedic Resident, Hospital for Special Surgery, New York, New York.
Dr. Epstein is Orthopaedic Resident, Department of Orthopaedic Surgery, Dr. Stevens is Assistant Professor, Department of Radiology, and Dr. Goodman is Professor, Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, California.
Anteroposterior (AP) x-rays provide limited information about size and location of acetabular osteolytic lesions after total hip arthroplasty (THA). In the study reported here, we sought to determine the utility of oblique (Judet) x-rays in preoperative assessment of acetabular lesions. AP, anterior (obturator), and posterior (iliac oblique) x-rays of 10 patients (10 hips) who underwent revision THA were evaluated retrospectively. Mean osteolytic area was 790 mm2 (SD, 520 mm2) on anterior oblique x-rays and 384 mm2 (SD, 396 mm2) on AP x-rays (P = .005). Mean osteolytic area on posterior oblique x-rays was 512 mm2 (SD, 430 mm2) (P = .34). Judet x-rays were useful in determining size and location of acetabular osteolysis.