From: Labral calcification plays a key role in hip pain and symptoms in femoroacetabular impingement
 | Patients with FAI (N = 18) | Patients with OA (N = 5) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Grade | Surface | Cell. | Collagen organiz. | S-FG | Calcific. | Surface | Cell. | Collagen organiz. | S-FG | Calcific. |
G 0 | 1 | 5 | 2 | 5 | 6 | Â | Â | Â | Â | Â |
G 1 | 2 | 6 | 1 | 10 | 6 | Â | 5 | Â | Â | Â |
G 2 | 7 | 4 | 11 | 3 | 6 | 2 | Â | 1 | 2 | 1 |
G 3 | 8 | 3 | 4 | Â | Â | 3 | Â | 4 | 3 | 4 |