Accuracy of pedicle screw placement using neuronavigation based on intraoperative 3D rotational fluoroscopy in the thoracic and lumbar spine.
Fluoroscopy
Neuronavigation
Pedicle screws
Spine
Vertebral pedicles
Journal
Archives of orthopaedic and trauma surgery
ISSN: 1434-3916
Titre abrégé: Arch Orthop Trauma Surg
Pays: Germany
ID NLM: 9011043
Informations de publication
Date de publication:
Jun 2023
Jun 2023
Historique:
received:
29
07
2021
accepted:
08
06
2022
medline:
19
5
2023
pubmed:
7
7
2022
entrez:
6
7
2022
Statut:
ppublish
Résumé
In spinal surgery, precise instrumentation is essential. This study aims to evaluate the accuracy of navigated, O-arm-controlled screw positioning in thoracic and lumbar spine instabilities. Posterior instrumentation procedures between 2010 and 2015 were retrospectively analyzed. Pedicle screws were placed using 3D rotational fluoroscopy and neuronavigation. Accuracy of screw placement was assessed using a 6-grade scoring system. In addition, screw length was analyzed in relation to the vertebral body diameter. Intra- and postoperative revision rates were recorded. Thoracic and lumbar spine surgery was performed in 285 patients. Of 1704 pedicle screws, 1621 (95.1%) showed excellent positioning in 3D rotational fluoroscopy imaging. The lateral rim of either pedicle or vertebral body was protruded in 25 (1.5%) and 28 screws (1.6%), while the midline of the vertebral body was crossed in 8 screws (0.5%). Furthermore, 11 screws each (0.6%) fulfilled the criteria of full lateral and medial displacement. The median relative screw length was 92.6%. Intraoperative revision resulted in excellent positioning in 58 of 71 screws. Follow-up surgery due to missed primary malposition had to be performed for two screws in the same patient. Postsurgical symptom relief was reported in 82.1% of patients, whereas neurological deterioration occurred in 8.9% of cases with neurological follow-up. Combination of neuronavigation and 3D rotational fluoroscopy control ensures excellent accuracy in pedicle screw positioning. As misplaced screws can be detected reliably and revised intraoperatively, repeated surgery for screw malposition is rarely required.
Identifiants
pubmed: 35794344
doi: 10.1007/s00402-022-04514-1
pii: 10.1007/s00402-022-04514-1
pmc: PMC10191982
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
3007-3013Informations de copyright
© 2022. The Author(s).
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