Table 1 Patient characteristics

Age, years

33 ± 9.8

Male/Female

17/9

BMI

26 ± 4.3

Lysholm score (mean ± SD)

49 ± 22

Tegner score (median (range))

1.0 (0–6)

Lesion size, cm²

2.7 ± 1.2

Previously failed microfracture treatment

8

Duration of symptoms, months

49 ± 60

Number of patients out of work due to knee problems

15

KOOS Pain

55 ± 16

KOOS Symptoms

58 ± 17

KOOS Activities of Daily Living

71 ± 16

KOOS Sports/Recreation

21 ± 16

KOOS Quality of Life

27 ± 18