Introduction:

The importance of lumbar pain management lies in its recurrence and manifestations for both the patient and society. It is necessary to establish what factors lead to success in terms of pain and functionality at the time of a lumbar arthrodesis.

Material and methods:

A retrospective descriptive study was conducted that sought to determine which spinopelvic parameters and their values in terms of pelvic incidence (PI), pelvic tilt (PT), sacral slope, lumbar lordosis (LL), sagittal vertical axis (SVA), and mismatch (PI-LL) might have a potential relationship with favorable postoperative outcomes. We included 44 patients who underwent MIS spinal approaches in our center between January 2016 to December 2017. Surgical outcomes of pain and functionality were assessed using visual analogue scale and Oswestry Disability Index (ODI). Follow up was conducted through three evaluations: one before surgical intervention and 2 at 3 and 6 months postop. Due to the sample size, the authors were unable to get statistically significant results.

Results:

In our descriptive retrospective study on 44 patients, we found a big positive functional change in the group of patients who had a PI-LL > 10° with an increase of 50 percentage points in the group of patients with good functionality (ODI: 0-20). In SVA > 5 cm, the range of patients with good functionality had an increase of 44.6 percentage points. The range of good functionality in patients with a PT < 20° increased 54.1 percentage points.

Conclusions:

In the present cohort, it was found that the radiological parameters that conditioned a greater percentage change in the functionality of the patients after being taken to spine surgery were SVA of base > 5 cm and a PI-LL base > 10° and PT < 20°.

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