Statistical Analysis
The findings analyzed by the SPSS 22.0 (SPSS Inc., Armonk, NY) software system Normality assumption was measured by the Kolmogorov Smirnov test. Categorical variables were compared with chi-square test, and scale variables were compared with One Way Anova test. Finally, a multivariate analysis was performed to research the effect of cartilage groups on postoperative average of PTA, ABG, and ABG closure.