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Fig. 4 | BMC Surgery

Fig. 4

From: Size selection and placement of pedicle screws using robot-assisted versus fluoroscopy-guided techniques for thoracolumbar fractures: possible implications for the screw loosening rate

Fig. 4

Schematic drawings showing the measurement methods for the sagittal kyphosis Cobb angles (KCA) and anterior vertebral height ratios (VHR). A The KCA was defined as the angle between the superior endplate of the upper vertebra(superior black line) and the inferior endplate of the lower vertebra (inferior black line) in accordance with Cobb’s method; B VHR = 2b/(a + c)

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BMC Surgery

ISSN: 1471-2482

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