Table 2 Patient's characteristics

Gender

33 male, 18 female

Age (years)

36 (range 13-61)

Height (cm)

176 (range 140-196)

Weight (kg)

74 (range 45-98)

Treated knee

33 right, 18 left

Defect size (cm²)

7.2 (3-17.5)

Cartilage grade

1 grade III, 50 grade IV (1st lesion); 4 grade III, 23 grade IV (2nd lesion)

Localization (1st lesion)

32 medial, 7 lateral, 5 patella, 7 intercondylar notch

Etiology

14 traumatic, 22 degenerative, 15 OD

Number of previous surgical procedures

7 × 0, 18 × 1, 11 × 3, 4 × 4, 1 × 5, 1 × 7, 1 × 8

Additional procedures

1 ACL-reconstructions, 1 Ali Crogius, 8 HTO, 3 microfractures, 11 OATS

Previous surgical procedures

20 meniscectomies, 5 ACL-reconstructions, 5 lateral releases, 14 drilling/microfracture, 7 abrasion arthroplasty