• Samuel Berchi Kankam, Mohammad Zarei, Navid Moghadam, Morteza Faghih Jouibari, Amir Mohammad Bazzazi, Yaseen KhanFurqan MohammedFMSpine Center of Excellence, Yas Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran., Mersad Moosavi, Milad Shafizadeh, Faramarz Roohollahi, Bassel Eldeen Makki, Masoud Khadivi, and Mohsen Rostami.
• Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran; Harvard Chan School of Public Health, Boston, Massachusetts, USA.
• World Neurosurg. 2023 Oct 1; 178: e646e656e646-e656.

ObjectiveTo compare short-term clinical and radiological outcomes and complication profiles between bilateral dual sacral-2-alar-iliac (S2AI) screw and bilateral single S2AI screw fixation techniques in patients who underwent grade 3 or 4 spinal osteotomies.MethodsA retrospective review of 83 patients treated with bilateral dual S2AI screws and 32 patients treated with bilateral single S2AI screws was conducted between 2018 and 2020 with a minimum 1-year follow-up. Clinical and radiological outcomes of patients and incidence of perioperative complications, including rod breakage, screw dislodgment, proximal junctional kyphosis, proximal junctional failure, need for reoperation, and systemic adverse effects, were collected and statistically compared between the groups.ResultsWith a mean follow-up of 18.2 months, rod fracture (6.0% vs. 18.7%, P = 0.03), screw dislodgment (0 vs. 12.5%, P < 0.01), and S2AI screw loosening (1.2% vs. 18.7%, P < 0.01) were significantly lower in the dual S2AI screws group than in the single S2AI screws group. However, the reoperation rate was similar between the 2 groups (24.1% vs. 34.3%, P = 0.26). No significant differences in clinical and radiological outcomes as well as proximal junctional kyphosis (10.8% vs. 18.7%, P = 0.25) and proximal junctional failure (9.6% vs. 18.7%, P = 0.18) were identified between the 2 groups.ConclusionsThe dual S2AI screw fixation technique showed more advantages over the single S2AI screw fixation technique with reduced incidence of screw dislodgment, rod fractures, and sacral-alar-iliac screw loosening.Copyright © 2023 Elsevier Inc. All rights reserved.

4 keywords...

hide…