Experimentally induced cam impingement in the sheep hip.

  title={Experimentally induced cam impingement in the sheep hip.},
  author={Klaus-Arno Siebenrock and Ruth Fiechter and Moritz Tannast and Tallal Charles Mamisch and Brigitte von Rechenberg},
  journal={Journal of orthopaedic research : official publication of the Orthopaedic Research Society},
  volume={31 4},
Sheep hips have a natural non-spherical femoral head similar to a cam-type deformity in human beings. By performing an intertrochanteric varus osteotomy, cam-type femoro-acetabular impingement (FAI) during flexion can be created. We tested the hypotheses that macroscopic lesions of the articular cartilage and an increased Mankin score (MS) can be reproduced by an experimentally induced cam-type FAI in this ovine in vivo model. Furthermore, we hypothesized that the MS increases with longer… CONTINUE READING

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