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Are modular pedicle screws associated with a high complication rate following posterior spinal fixation? – Published Article

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This article, published in the Journal of Spine Surgery, discusses the use of modular pedicle screws in posterior spinal fixations. The study aimed to report the complications and reoperation rates associated with these screws at a single center. The researchers conducted a retrospective chart review of 285 patients who underwent posterior thoracolumbar spinal fusion with modular pedicle screw fixation. The results showed that there were no failures at the screw-head junction, and the overall complication rate was 20.8%, with 25 reoperations. The study concludes that modular pedicle screws have reoperation rates similar to standard pedicle screws and present a viable option with a lower risk of complications

Summarised by Mr Mo Akmal – Lead Spinal Surgeon
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Published article

CONCLUSIONS: This study demonstrates that modular pedicle screw fixation has reoperation rates similar to those previously reported for standard pedicle screws. There was no failure at the screw-head junction, and no increases in other complications. Modular pedicle screws present an excellent option to allow surgeons to place pedicle screws without the risk of extra complications.

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J Spine Surg. 2023 Jun 30;9(2):133-138. doi: 10.21037/jss-22-99. Epub 2023 Apr 10.ABSTRACTBACKGROUND: Modular pedicle screws have a separate head that can be intraoperatively assembled to the inserted shank. The aim of this study was to report associated intra- and post-operative complications and reoperation rates of posterior spinal fixations with modular pedicle screws at a single,

J Spine Surg. 2023 Jun 30;9(2):133-138. doi: 10.21037/jss-22-99. Epub 2023 Apr 10.

ABSTRACT

BACKGROUND: Modular pedicle screws have a separate head that can be intraoperatively assembled to the inserted shank. The aim of this study was to report associated intra- and post-operative complications and reoperation rates of posterior spinal fixations with modular pedicle screws at a single center.

METHODS: A retrospective, institutional chart review was performed on 285 patients who underwent posterior thoracolumbar spinal fusion with modular pedicle screw fixation between January 1, 2017, and December 31, 2019. The primary outcome was failure of the modular screw component. Other measures recorded were length of follow-up, other complications, and need for additional procedures.

RESULTS: There were 1,872 modular pedicle screws (average 6.6 per case). There were no (0.0%) screw head dissociations at the rod screw junction. There was 20.8% overall complication rate (59/285) with 25 reoperations: 6 due to non-union and rod breakage, 5 for screw loosening, 7 for adjacent segment disease, 1 for acute postoperative radiculopathy, 1 for epidural hematoma, 2 for deep surgical-site infections, and 3 for superficial surgical-site infections. Other complications included superficial wound dehiscence [8], dural tears [6], non-unions not requiring reoperation [2], lumbar radiculopathies [3], and perioperative medical complications [5].

CONCLUSIONS: This study demonstrates that modular pedicle screw fixation has reoperation rates similar to those previously reported for standard pedicle screws. There was no failure at the screw-head junction, and no increases in other complications. Modular pedicle screws present an excellent option to allow surgeons to place pedicle screws without the risk of extra complications.

PMID:37435318 | PMC:PMC10331498 | DOI:10.21037/jss-22-99

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Are modular pedicle screws associated with a high complication rate following posterior spinal fixation?

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J Spine Surg. 2023 Jun 30;9(2):133-138. doi: 10.21037/jss-22-99. Epub 2023 Apr 10.ABSTRACTBACKGROUND: Modular pedicle screws have a separate head that can be intraoperatively assembled to the inserted shank. The aim of this study was to report associated intra- and post-operative complications and reoperation rates of posterior spinal fixations with modular pedicle screws at a single

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