Table 1.

Indications and outcome predictors in subchondral cartilage stimulating surgery

Factors	Better results with:
Age [15]	<40 years
Duration of symptoms [15]	<12 months
Lesion size [15]	up to 2 × 2 cm
Lesion depth [15]	<5 mm
Body mass index [15]	<30 kg/m2
Preoperative activity level Tegner score [15]	>4
Previous surgery [15]	Primary microfracture
Repair cartilage volume [15]	Good defect fill (>66 %)
Mechanical alignment [16]	Normal
Joint anatomy [16]	Normal
Joint stability [16]	Ligamentously stable with adequate muscle strength
Meniscus [17]	Without loss of meniscal tissue
Kissing lesion	Monopolar