Background: We compared the clinical and radiographic outcomes of corrective surgery in patients with poliomyelitis-related spinal deformity (PSD) using 3 types of pelvic fixation and investigated the incidence and risk factors for complications.
Methods: We reviewed the data from 42 patients with PSD who had undergone spinopelvic reconstruction at a single institution from 2000 to 2016. Of the 42 patients, 15 had been treated with the Galveston technique, 13 with iliac screw fixation, and 14 with S2-alar-iliac (S2AI) screw fixation. Demographic data, radiographic parameters, and complications were analyzed. Health-related quality of life was determined using Scoliosis Research Society (SRS) 22-item questionnaires and the Oswestry Disability Index scores.
Results: After surgery, the correction rate of the main curve was 51.7%, 57.8%, and 52.1% in the 3 groups, with significant improvement in regional kyphosis, coronal balance, and pelvic obliquity (PO) (P < 0.05). The correction of PO was similar among the 3 types of pelvic fixation; however, the patients treated with S2AI fixation required significantly less operative time (P < 0.05) and blood loss (P < 0.006). The overall complication rate was 40.5%, with a major complication rate of 23.8%. Age at surgery (P = 0.006) and grade >2 SRS-Schwab osteotomy (P = 0.036) were significant risk factors for complications. Significant improvement was found in the SRS-22 and Oswestry Disability Index scores at the final follow-up examination in the 3 groups.
Conclusions: The present study showed satisfactory correction of spinopelvic deformity for 42 patients with PSD. Compared with the Galveston technique and iliac screw fixation, the use of S2AI significantly decrease the operative time and estimated blood loss and obtained similar correction of PO. Patient age at surgery and grade >2 SRS-Schwab osteotomy were significant risk factors for complications.
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| http://dx.doi.org/10.1016/j.wneu.2018.10.238 | DOI Listing |
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