Predicting the Failure Risk of Internal Fixation Devices in Chinese Patients Undergoing Spinal Internal Fixation Surgery: Development and Assessment of a New Predictive Nomogram

Figure 4

Calibration curves for predicting the risk profile of spinal instrumentation failure in the cohort. The -axis represents the predicted risk of spinal instrumentation failure. The -axis represents the actual diagnosis of spinal instrumentation failure. The diagonal dashed line represents an ideal perfect prediction model. Solid lines represent the performance of the nomogram, where closer proximity to diagonally dashed lines represents better prediction.