A Prediction Modeling Based on the Hospital for Special Surgery (HSS) Knee Score for Poor Postoperative Functional Prognosis of Elderly Patients with Patellar Fractures

Figure 5

Evaluation of the nomogram prediction model. (a) A calibration curve for predicting the risk of poor functional outcome after patellar fracture in the elderly. The diagonal dashed line is the perfect prediction of the ideal model, while the solid line is the predictive power of the model. (b) The area under the curve (AUC) of a nomogram model indicates the probability of accurately predicting a poor postoperative functional outcome in a randomized patient selection scenario.

(a)

(b)