Histopathological Finding of Microdamage Accumulation in Atypical Subtrochanteric Femoral Fracture

Table 4

Measurement of microcracks at the fracture site.

Parameter	Abbreviations	Present case	Unit	Reference data [18]
Bone area	B.Ar	8.84	mm^2
The number of microcracks	Cr.N	7	N
Total crack length	Cr.S	615.66	μm
Average crack length	Cr. Le.	87.94	μm
Crack density	Cr. Dn	0.79	N/mm^2	0.21	N/mm^2
Crack surface density	Cr.S.Dn	69.64	μm/mm^2	19.5	μm/mm^2