ArticleFrontiers in surgery2026
The anatomical bone corridor study of schanz screw placement in adolescent pelvic ring fractures via three-dimensional CT.
Article in Frontiers in surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: To define the anatomical boundaries of potential safe corridors for the placement of Schanz screws during external fixation of unstable pelvic fractures in normally developed adolescents aged 11-14 years. Patients and methods: Pelvic CT scans of 34 patients (18 males, 16 females; mean age 12 years) were reconstructed into 3D models using Mimics 21.0. A supine coordinate system was defined using anatomical landmarks, including the anterior superior iliac spine (ASIS), posterior superior iliac spine (PSIS), and anterior inferior iliac spine (AIIS). Cross-sectional measurements of the iliac wing and supra-acetabular corridors were performed, simulating 4 mm Schanz screw trajectories and documenting entry points, angles, and corridor dimensions. Results: Iliac Wing Corridor: The morphology transitioned from proximal rectangular to mid-corridor dumbbell-shaped, with distal funnel-like narrowing. Anterior/posterior corridor lengths measured 54.2-58.6 mm and 68.1-73.1 mm (95% CI), respectively. Screw I1 entry (16.9-18.7 mm posterior to ASIS; 95% CI) required horizontal/sagittal angles of 22.5-25.8° and 53.7-61.2° (95% CI). Screw I2 entry (49.4-53.6 mm posterior to ASIS; 95% CI) necessitated horizontal/sagittal angles of 21.5-25.1° and 61.3-66.1° (95% CI). Supra-acetabular corridor: S-shaped with mid-corridor constriction. The longest trajectory (116.7-125.3 mm; 95% CI) aligned with the AIIS-PSIS central plane, while the shortest (95.9-105.9 mm; 95% CI) occurred in the periacetabular region. Screw A insertion via the AIIS-PSIS plane required horizontal/sagittal angles of 58.2-61.3° and 23.0-25.6° (95% CI), respectively. Conclusion: Both iliac wing and supra-acetabular corridors demonstrated safe accommodation of 4 mm Schanz screws in this age group. Adherence to predefined entry points and angles is critical to minimize perforation risk and optimize fixation stability. Patient-specific computer-assisted preoperative surgical planning is particularly well-suited for adolescents in enhancing surgical safety.
Indexed as
Identifiers
What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.