Osteochondritis dissecans surgical staging system
Dr Yuranga Weerakkody and Dr Frank Gaillard et al.
Osteochondritis dissecans can be classified at surgery into 4 stages:
-
stage I
- stable
- lesion in continuity with the host bone
- covered by intact cartilage
-
stage II
- stable on probing
- partial discontinuity of the lesion from the host bone
-
stage III
- unstable on probing
- fragment not dislocated
- complete discontinuity of the "dead in situ" lesion
-
stage IV
- dislocated fragment
Classification according to International Cartilage Repair Society.
Of course distinguishing stage II from III can be difficult on MRI.
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