Abstract
Background
It is still controversial whether “labral tear” in the pelvis or “pincer type's femoroacetabular impingement syndrome” should be considered a pathologic lesion, and whether they cause the early onset of osteoarthritis in the pelvis.
Hypothesis
The disruption of chondrolabral junction causes degenerative change on hip joint, and the disruption of the vessel tissue to the labrum induces the rapidly progressive degeneration of outside in osteoarthritis changes.
Methods
Femoral acetabulum has been escaped from the chondrolabral junction and expanded to the acetabulum inside or outward. Therefore we report the cases.
Results
We found cases which has chondrolabral junction disruptive slippage, and disruption of the vessel tissue and inverted or everted labral pathologic lesion, which we named COLADIS, chondrolabral junction disruptive slippage.
Conclusion
COLADIS (chondrolabral junction disruptive slippage) caused symptoms on patient's hip, and may be the pre-pathologic lesion of early osteoarthritis.
