Figure 1From: Mechanical effects of surgical procedures on osteochondral grafts elucidated by osmotic loading and real-time ultrasoundSample preparation. A full-thickness osteochondral defect (closed circle; diameter, 3.5 mm; depth, 5 mm) is created in the lateral lower quarter of each patella. (a) Group I. An exact-sized plug (open circle) is harvested from the lateral upper quarter of the patella and transplanted into the defect. (b) Group II. An oversized plug (open circle) is harvested from the lateral upper quarter of the patella and transplanted into the defect.Back to article page