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Assessment of Distal Limbs Fractures With Cone-Beam CT Newtom 5G

NCT01796600 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 43

Last updated 2025-09-04

No results posted yet for this study

Summary

ConeBeam scanner (CBCT) is a widely technique used for dental and maxillofacial imaging. Patients can be set up in a sitting or a laying position in the, Newtom 5G CBCT allowing for an analysis of the distal appendicular skeleton. The investigators' hypothesis is that the cone-beam scanner could detect and characterize fractures of the extremities similarly to a multidetector CT (MDCT). 150 patients over 18 years requiring a CT scan for a suspected distal limb fracture or a preoperative assessment will be enrolled. The primary endpointis based on the ability of cone-beam scanner to properly characterize the type of fracture using a classification derived from Maurice E. Müller (AO) classification. Secondary endpoints will concern the depiction of the fracture, the assessment of the soft tissues near the fracture, quality of images, inter and intra-operator reproducibility and tolerance of the patient for the examination. Patients will have a MDCT considered as the reference exam, then a CBCT. Exams will be anonymized and read twice by two trained radiologists with 3-6 week intervals. The inter-observer agreement for the diagnosis of fracture type between the two techniques will be evaluated by a kappa coefficient. The evaluation of diagnostic performance will be achieved by studying the sensitivity, specificity, negative predictive value and positive predictive value, and its likelihood ratio. Kappa test will be performed to evaluate the consistency of the characterization of the fracture and the evaluation of soft tissue near the fracture. A Student t test will be performed for paired data if distributions are normal, a Wilcoxon test if not. To assess patient's tolerance, the percentages of (painful, not painful) will be calculated for each technique and will be compared using the Chi2 test (or Fisher's exact test if the chi can not apply).

Conditions

  • Distal Limbs Bones Fractures

Interventions

DEVICE

The patients will have a conventional scanner, a reference examination, and a cone-beam scanner Newtom 5G just after the conventional scanner

Sponsors & Collaborators

  • Hospices Civils de Lyon

    lead OTHER

Principal Investigators

  • Jean-Baptiste PIALAT, MD,PHD · Hospices Civils de Lyon- Hôpital Edouard Herriot

Study Design

Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2012-07-31
Primary Completion
2013-06-30
Completion
2013-06-30

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01796600 on ClinicalTrials.gov