Table 1 Characteristics of the 2 study populations
| Â | SH group | MS group |
|---|---|---|
Age | ||
 Mean | 53 y.o. | 55 y.o. |
 SD | 12 | 11 |
Gender | ||
 M | 13 (62%) | 8 (57%) |
 F | 8 (38%) | 6 (43%) |
BMI | ||
 Mean | 27 | 27 |
 SD | 4 | 4 |
Smoke | ||
 Smokers/Former | 8 (38%) | 5 (36%) |
 Non Smokers | 13 (62%) | 9 (64%) |
Grade Chondropathy (ICRS classification) | ||
 II | 5 (24%) | 2 (14%) |
 III | 8 (38%) | 7 (50%) |
 IV | 8 (38%) | 5 (36%) |
Grade OA (Kellgren Lawrence) | ||
 1 | 8 (38%) | 1 (7%) |
 2 | 4 (19%) | 2 (14%) |
 3 | 9 (43%) | 11 (79%) |
Site of Lesion | ||
 FC | 10 (48%) | 11 (79%) |
 PF | 3 (14%) | 3 (21%) |
 TP | 8 (38%) | – |
Type of Lesion | Â | Â |
 Diffused | 16 (76%) | 11 (79%) |
 Focal - mean size | 5 (24%) - 10 mm | 3 (21%) - 14 mm |
Surgery | SH | SM |