Analysis of stress fractures in athletes based on our clinical experience

Table 3 Proportion of stress fractures in athlete[2]

Investigator (yr)	Ovara (1978)	Sugiura (1983)	Matheson (1987)	Tajima (1997)	Muto (1998)	Sakai (1999)	Iwamoto (2009)
No. of case	142	162	330	111	251	183	263
Upper limb
Metacarpal bone	1.4				0.3
Humerus	0.7				1.2
Ulna	0.7	1.2			5.2	1.6	8.7
Trunk
Rib	8.6		3.6	1.8	4.0	2.7	14.1
Spine	0.7	2.4	0.6		11.9	4.9	0.8
Pelvis	1.4		1.6		2.4	4.9	8.4
Lower limb
Femur	6.3	3.7	7.2	0.9	3.2	3.3	1.5
Patella		1.2		1.8	0.3		0.4
Lower leg	67.6	67.3	55.7	68.5	37.8	51.9	48.3
Tibia		54.3			32.3	42.6	44.1
Fibula		13.0			5.6	9.3	4.2
Tarsal bone	0.7		25.3	2.7	3.6	5.4	1.1
Metatarsal bone	18.3	15.4	8.8	20.7	28.7	25.1	12.9
Sesamoid	1.4		0.9		0.5		2.7
Toe phalanx	0.7						0.8