Table 1.

Kaeding-Miller stress fracture classification system^{11 a}

Grade	Pain	Radiographic Findings (CT, MRI, Bone Scan, or Radiograph)
I	−	Imaging evidence of stress fracture No fracture line
II	+	Imaging evidence of stress fracture No fracture line
III	+	Nondisplaced fracture line
IV	+	Displaced fracture (>2 mm)
V	+	Nonunion

CT, computed tomography; MRI, magnetic resonance imaging.

^aCombined clinical and radiographic classification system for stress fractures is shown.