Gender

Female (n = 8), male (n = 11)

Age, years

35 (range 25–50)

Height, cm

173 (range 162–184)

Weight, kg

75 (range 57–100)

Body mass index

25 (range 19–34)

KellgrenLawrence score

2 (n = 10)
3 (n = 9)

Defect size of 1st lesion, cm^{2}

4 (range 2–6)

Outerbridge classification of 1st lesion

IV (n = 19)

Localization of 1st lesion

Medial femoral condyle (n = 14)
Lateral femoral condyle (n = 2)
Patella (n = 3)

2nd lesion

n = 4

Defect size of 2nd lesion, cm^{2}

3 (range 2–4)

Outerbridge classification of 2nd lesion

IV (n = 4)

Localization of 2nd lesion

Medial femoral condyle (n = 1)
Trochlea (n = 3)

Concomitant surgeries

High tibial osteotomy (n = 5)
Anterior cruciate ligament reconstruction (n = 4)

Previous surgical procedures

High tibial osteotomy (n = 5)
Shaving (n = 10)
Abrasion arthroplasty (n = 4),
Microfracture/drilling (n = 1)
Meniscectomy (n = 6)
Anterior cruciate ligament/collateral ligament reconstruction (n = 7)
