The trochlear cleft: the “black line” of the trochlear trough

  title={The trochlear cleft: the “black line” of the trochlear trough},
  author={Robert D. Wissman and Jerrell Ingalls and Joshua Nepute and Nathaniel von Fischer and Rupa Radhakrishnan and Daniel Stephen Hendry and Keith Kenter},
  journal={Skeletal Radiology},
The “cartilage black line sign” is a recently described T2 dark cartilage lesion that we have identified appearing as a cleft in the trochlear trough. The purpose of our study was to define the MR imaging characteristics of a trochlear cleft, determine its incidence, and correlate the MR findings with arthroscopy. A total of 1,300 consecutive MR examinations of the knee were retrospectively reviewed by consensus of two fellowship-trained musculoskeletal radiologists. The MR imaging… CONTINUE READING
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