Statistical analysis
Data were analyzed by SPSS Version 26.0 (IBM Corporation, New York, USA). Descriptive statistics for continuous variables were reported as the mean and standard deviation (SD). Categorical variables were reported as count and proportions. For comparisons of categorical variables, the Chi-square exact test was used. Normality of distribution was assessed using the Kolmogorov–Smirnov test, which revealed a non-parametric distribution for all variables of interest. Differences between preoperative and postoperative data were observed through the Mann–Whitney 