T. L Boegård, M. D. , Ph. D. , O Rudling, M. D. , I. F Petersson, M. D

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Musculoskeletal Imaging Musculoskeletal diseases debilitate millions of people and are tremendous burden on health care systems worldwide. It was estimated.

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Distribution of MR-detected cartilage defects of the patellofemoral joint in chronic knee pain T.L Boegård, M.D., Ph.D., O Rudling, M.D., I.F Petersson, M.D., Ph.D., K Jonsson, M.D. Osteoarthritis and Cartilage Volume 11, Issue 7, Pages 494-498 (July 2003) DOI: 10.1016/S1063-4584(03)00084-0

Fig. 1 Radiographic techniques for the axial view of the PFJ; (A) Settegast, (B) Jaroschy (Hughston), (C) Knutsson, (D) Füsmaier, (E) Brattström and (F) Merchant (after Merchant et al.16, with permission from J Bone Joint Surg Am). Osteoarthritis and Cartilage 2003 11, 494-498DOI: (10.1016/S1063-4584(03)00084-0)

Fig. 2 The position for obtaining the axial view of the PFJ. Osteoarthritis and Cartilage 2003 11, 494-498DOI: (10.1016/S1063-4584(03)00084-0)

Fig. 3 Schematic representation of the en-face view of a disarticulated right knee showing the articular surfaces of the patella and of the trochlea femur. The anatomic drawings are reproduced from Sobotta-Becher, Atlas der Anatomie des Menschen, Teil 1, 21. Auflage, Urban and Fischer Verlag 2000, with permission from the publisher. The figures represent the number of knees with the center of an MR-detected cartilage defect within the respective areas. The broken line in each drawing indicates the vertex of the patella and the middle of the sulcus of the trochlea femur. Osteoarthritis and Cartilage 2003 11, 494-498DOI: (10.1016/S1063-4584(03)00084-0)

Fig. 4 (A) The axial and (B) the sagittal protodensity-weighted MR image in a 53-year-old woman demonstrating a cartilage defect of grade 2 of the patella, corresponding to the middle area of the middle column (arrow). Osteoarthritis and Cartilage 2003 11, 494-498DOI: (10.1016/S1063-4584(03)00084-0)

Fig. 5 (A) The axial and (B) the sagittal protodensity-weighted MR image in a 42-year-old woman demonstrating a cartilage defect of grade 2 of the trochlea femur, corresponding to the middle area of the lateral column (arrow). Osteoarthritis and Cartilage 2003 11, 494-498DOI: (10.1016/S1063-4584(03)00084-0)