Patient Characteristics^a,b

Values

Demographics

Sex, male/female, n

8/10

Age at surgery, mean ± SD (range), y

35.4 ± 13.7 (18 - 64)

Duration of Symptoms, mean (range), m

62 (8 - 243)

BMI, mean ± SD (range)

27.2 ± 4.1 (21.8 - 34.5)

Follow-up, mean ± SD (range), m

32.7 ± 9.0 (24 - 48)

Baseline data

Knee, right/left, n

8/10

Chondral disease classification, bipolar/unipolar, n

12/6

Joint space narrowing, yes/no, n

9/9

Total area treated, mean ± SD (range), cm²

5.8 ± 4.4 (0.6 - 14.7)

Patients with area treated ≤4 cm²/>4 cm², n

6/12

Lesions treated, mean ± SD (range), n

3.1 ± 1.7 (1 - 6)

Lesion characteristics^c

Lesion size, mean ± SD (range), cm²

1.9 ± 2.1 (0.2 - 9.1)

ICRS grade, III/IV, n

30/25

Lesion location, n

Femoral condyle

25

Tibia plateau

12

Patella

9

Trochlea

9