Table 1.

Donor Age, Gender, and Osteoarthritic Grades

Donor	Age (years)	Gender	OA gradea
1	14	Male	Grade 0
2	19	Female	Grade 0
3	19	Male	Grade 0
4	27	Male	Grade 0
5	30	Male	Grade 1
6	30	Male	Grade 1
7	37	Male	Grade 0
8	50	Male	Grade 1
9	55	Female	Grade 3

^aOnly normal nonfibrillated cartilage surfaces were harvested. Osteoarthritic (OA) grades are based on the modified Collins grade.^31,32