Non-invasive Imaging Technique for the Study of Lordosis in Pregnant Women and Its Relationship to Birth Outcome

Study Overview
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Brief Summary
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The study consists of collecting measurement data of the rachis in pregnant women and the subsequent outcome of her delivery. This will make it possible to validate a non-invasive imaging technique through software that can be used to study this anatomical curve proposing a new measurement method for the angle of lordosis. Finally, with the research data, the investigators will try to find a correlation between these variables (angle of lordosis and delivery outcome.

Official Title
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Validation of a Non-invasive Image Technique for Studying Pregnant Women´s Lordosis. Relation Between Lordosis and Childbirth Outcome.

Conditions
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Pregnancy Outcome, Biomechanics, Back Disorder, Diagnostic Imaging, Biomedical Technology

Intervention / Treatment
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* Diagnostic Test: Arrow Test
* Diagnostic Test: Angle measurement by imaging device


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: pregnant women between 20 and 40 years old with a low-risk pregnancy Exclusion Criteria: Pregnant women under 20 years and over 40 years of age or with a significant lumbar pathology or with a very high-risk pregnancy or with IMC >35

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Pregnant<br>Pregnant >36 weeks gestation, 20 to 40 years old, without significant lumbar pathology, or intense labor pain, or percentile p>97 or <p3, or with a result of delivery-cesarean section due to risk of loss of fetal well-being | Diagnostic Test: Arrow Test<br>* It consists of taking the widest measurement between the rope of a plumb bob on her upper and lower back.<br>Diagnostic Test: Angle measurement by imaging device<br>* First, three anatomical landmarks are located, and a sticker is placed on each of them: the 12th thoracic vertebra at its intersection with the midline descending from the axilla, the greater trochanter, and the anterior superior iliac spine. After this, the woman will be asked to stand in a normal position facing forward with her hands crossed over her shoulders, and a picture will be taken and pixelated with anything that could identify her. The angle formed by the three stickers will be measured with this image and the software.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Lordosis angle using an app | Differentiation between lordosis, hyperlordosis and lumbar rectification | 2025 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Lordosis angle by means of arrow test | Differentiation between lordosis, hyperlordosis and lumbar rectification. | 2025 |