With our proposed criteria, and scoring system, the selection of patients for CRS and HIPEC can be improved, and unnecessary exploratory operations avoided.

Introduction: Back pain is one of the most common musculoskeletal pains that more than 80% of people experience it at least once in their lifetime. Material and Methods: The present retrospective cross-sectional study was conducted on 197 cases of patients with single level herniated disc. Lateral radiographic images of patients were examined to determine spinopelvic parameters including TK, LL, SVA, SS, PT, PI, TA and TPA. Results: The most common level of disc herniation was related to L4/L5 and the most common morphology was found to be central, with a prevalence of 56.3% and 68%, respectively. There was a significant difference between different levels of disc herniation in terms of SVA, TA, PI and TPA parameters (p < 0.001), a significant difference in terms of TK and LL parameters between different herniated disc morphologies (p˂0.05). Furthermore, SS and PI indices in women and PT index in men were significantly higher (p P<0 0.05). Besides, there was a significant association between age and LL index (r = 0.511, p < 0.001). Conclusion: L4/L5 disc herniation and central type were the most common level and morphology of discopathy in our study. The highest prevalence of the disease was reported in the age range of 34 to 54 years. A significant decrease of TA and TPA parameters and a significant increase of SVA and PI indices were observed in L5/S1 disc herniation. Additionally, a significant decrease of TK and LL indices was found in foraminal type herniated disc.