Defining Sacral Dysmorphism: What Size Corridor Precludes Transsacral Screw Placement.
Journal
Journal of orthopaedic trauma
ISSN: 1531-2291
Titre abrégé: J Orthop Trauma
Pays: United States
ID NLM: 8807705
Informations de publication
Date de publication:
01 10 2022
01 10 2022
Historique:
accepted:
17
04
2022
pubmed:
23
4
2022
medline:
21
9
2022
entrez:
22
4
2022
Statut:
ppublish
Résumé
To determine what size S1-transsacral (TS) corridor is amenable to TS screw placement, as this is commonly used to identify sacral dysmorphism, and to determine if gender, ethnicity, or screw breach is associated with narrow corridors. Retrospective review. Urban level-1 trauma center. Two hundred ninety patients with pelvic ring injuries and preoperative computed tomography (CT) scans. Percutaneous posterior pelvic ring fixation. The width of the S1-TS corridor was measured on the axial (inlet) and coronal (outlet) reformatted CT images. Patients with S1-TS screw fixation and postoperative CT scans were identified. Corridor size, gender, ethnicity, and screw breach were documented. S1-TS screws were placed in 55 of the 290 patients. No S1-TS screws were placed in corridors less than 8 mm. Corridors of <8 mm were present in 114 (39%) of the 290 patients and were not associated with gender or ethnicity. S1-TS screws placed in small (<10 mm) versus large (≥10 mm) corridors did not have a detectable difference in screw breaches (5 of 8, 62% versus 19 of 47 40%; difference, 22%, 95% confidence interval -14% to 52%) or median (interquartile range) screw breach distance [3 mm (2.5-4.8) versus 3 mm (1.2-4.8); difference, 0.9 mm; confidence interval -1.6 to 2.2]. These data are useful for the standardization of sacral dysmorphism reporting based on corridor size. Screw breaches were common irrespective of TS corridor size, emphasizing the small degree of error allowed by this procedure. Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.
Identifiants
pubmed: 35452049
doi: 10.1097/BOT.0000000000002380
pii: 00005131-202210000-00003
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
498-502Informations de copyright
Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.
Déclaration de conflit d'intérêts
The authors report no conflict of interest.
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