Table 1.

Patient Demographics

Patient	Agea (Years)	Sex	Skeletal Maturityb	Duration of Symptoms (Months)	Lesion Location	Lesion Size (cm2)	Loose Body Type
1	21	Male	Mature	12	Lateral Femoral Condyle	2.0	Osteochondralc
2	14	Female	Immature	3	Medial Femoral Condyle	5.0	Osteochondral
3	13	Female	Immature	3	Medial Femoral Condyle	6.0	Osteochondral
4	21	Male	Mature	0.5	Lateral Femoral Condyle	2.3	Osteochondral
5	27	Female	Mature	6	Medial Femoral Condyle	2.2	Osteochondral
6	15	Male	Immature	4	Lateral Femoral Condyle	8.0	Osteochondral
7	15	Female	Mature	2	Lateral Trochlea	2.2	Osteochondral
8	12	Female	Immature	2	Medial Patellar Facet	2.2	Osteochondral
9	20	Male	Mature	2	Lateral Trochlea	1.5	Chondrald
10	13	Female	Immature	0.5	Lateral Trochlea	2.0	Osteochondral
11	25	Male	Mature	2	Medial Femoral Condyle	3.8	Chondral
12	13	Male	Immature	0.5	Lateral Trochlea	3.0	Chondral
13	18	Male	Mature	1	Medial Femoral Condyle	1.5	Chondral
14	34	Male	Mature	4	Medial Femoral Condyle	2.2	Osteochondral
15	22	Male	Mature	1	Medial Patellar Facet	2.2	Osteochondral
16	23	Male	Mature	18	Medial Femoral Condyle	6.0	Osteochondral
17	17	Female	Mature	15	Medial Femoral Condyle	2.8	Chondral
Mean	19.2	59 % Male	65 % Mature	4.5		3.3	71 % Osteochondral

^aAge at the time of operative fixation of the loose body

^bMaturity defined as closure of the distal femoral physis

^cLoose body consisting of full thickness articular cartilage and a significant amount of bone

^dLoose body consisting of full thickness articular cartilage without attached bone