Osteoarthritis - SlideShare
According to Ahlbäck system, knee joint osteoarthritis is classified as: • grade 1: joint space narrowing (less than 3 mm) • grade 2: joint space obliteration • grade 3: minor bone attrition (0-5 mm) • grade 4: moderate bone attrition (5-10 mm) • grade 5: severe bone attrition (more than 10 mm) 16. The Kellgren and Lawrence system is ...