Fig. 4From: Secondary peripheral chondrosarcoma arising in solitary osteochondroma: variables influencing prognosis and survivalKaplan–Meier curves comparing: a disease-free survival by type of primary surgical resection (p = .0018); b disease-free survival split by whether the histological grade was G1 or G2 or greater (p = .0001); c disease-free survival split by whether the maximum tumor dimension was < or > 15 cm (p = .0109); d disease-free survival split by whether the cartilaginous cap was < or > 3 cm (p = .0078)Back to article page