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Published byTodd Chapman Modified over 5 years ago
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Location specific radiographic joint space width for osteoarthritis progression
G. Neumann, D. Hunter, M. Nevitt, L.B. Chibnik, K. Kwoh, H. Chen, T. Harris, S. Satterfield, J. Duryea Osteoarthritis and Cartilage Volume 17, Issue 6, Pages (June 2009) DOI: /j.joca Copyright © 2008 Osteoarthritis Research Society International Terms and Conditions
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Fig. 1 Typical output of knee radiograph analysis software showing the delineation of the femoral condyle and the tibial plateaus, and the mJSW locations. Osteoarthritis and Cartilage , DOI: ( /j.joca ) Copyright © 2008 Osteoarthritis Research Society International Terms and Conditions
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Fig. 2 Examples of problematic medial compartment knee radiographs from our data where the location specific JSW may provide a more robust metric. In (a) sub optimal patient positioning causes the femur and tibia margins to continuously converge resulting in no local minimum. In (b) joint attrition causes different locations for mJSW in the baseline and follow-up images. Osteoarthritis and Cartilage , DOI: ( /j.joca ) Copyright © 2008 Osteoarthritis Research Society International Terms and Conditions
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Fig. 3 Landmarks and definition of coordinate system.
Osteoarthritis and Cartilage , DOI: ( /j.joca ) Copyright © 2008 Osteoarthritis Research Society International Terms and Conditions
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Fig. 4 Location specific measurement of JSW, JSW(x), (x=0.125–0.275), in the medial compartment. Measurements of JSW(x) are made at the x-locations defined by the coordinate system. Osteoarthritis and Cartilage , DOI: ( /j.joca ) Copyright © 2008 Osteoarthritis Research Society International Terms and Conditions
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