Table 1.

Locations and Grade of Bone Marrow Edema Lesions ^a

	Overall				Grade
	n (%)		Female	Male	1	2	3
Distal tibia
Anterior	2 (3.2)		1	1	2	0	0
Middle	3 (4.8)		1	2	3	0	0
Posterior	2 (3.2)		0	2	2	0	0
Talus
Head	11 (17.7)		8	3	7	4	0
Neck	16 (25.8)		9	7	10	6	0
Body	32 (51.6)		18	14	20	7	5
Posterior process	1 (1.6)		0	1	1	0	0
Calcaneus
Place of PAIS	1 (1.6)		0	1	1	0	0
Insertion of Achilles tendon	1 (1.6)		0	1	0	0	1
Anterolateral	1 (1.6)		0	1	1	0	0
Cuboid	5 (8.1)		3	2	5	0	0
Navicular	3 (4.8)		0	3	3	0	0
Cuneiform
Lateral	1 (1.6)		0	1	0	0	1
Intermediate	2 (3.2)		1	1	2	0	0
Medial	5 (8.1)		3	2	5	0	0
Metatarsal
First	14 (22.6)		6	8	14	0	0
Second	4 (6.5)		2	2	3	1	0
Fourth	1 (1.6)		1	0	1	0	0
Fifth	1 (1.6)		0	1	1	0	0
Phalange
First	3 (4.8)		0	3	2	0	1
Fifth	1 (1.6)		0	1	1	0	0
Sesamoid
Medial	5 (8.1)		3	2	1	2	2

^aData are presented as n unless otherwise indicated. PAIS, posterior ankle impingement syndrome.