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

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

43 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-07-31

Study Completion Date

2013-06-30

Brief Summary

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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).

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Detailed Description

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Conditions

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Distal Limbs Bones Fractures

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

SINGLE

Investigators

Study Groups

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Conventional and a cone-beam scanner 5G

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

Group Type EXPERIMENTAL

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

Intervention Type DEVICE

Interventions

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

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Patient age 18 years old or above, weight ≤ 160 Kg
* Patient require MDCT for a suspected distal limb fracture or a preoperative assessment
* French spoken an read
* Free and informed consent signed
* Being affiliated to a French social security system or similar.

Exclusion Criteria

* Patients already included in the study for a previous fracture
* Patient with severe pain and reduced spontaneous mobility that could prevent proper positioning for the cone-beam
* Lack of effective contraception (risk of pregnancy) or pregnancy proven data on interrogations
* Patient on protection of the court, under supervision or trusteeship
* Inability to express a consent
* Patients already enrolled in a study with a conflict of interest with this study.
* The presence of osteosynthesis materiel or capital may interfere with image quality. A sample of 3 to 5 patients may be included at the beginning of the study to test the image quality in presence of material.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No