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

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

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT05733377

Enrollment

122

Registered

2023-02-17

Start date

2022-07-15

Completion date

2025-06-30

Last updated

2024-11-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

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

Brief summary

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.

Interventions

DIAGNOSTIC_TESTArrow Test

It consists of taking the widest measurement between the rope of a plumb bob on her upper and lower back.

DIAGNOSTIC_TESTAngle measurement by imaging device

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.

Study design

Observational model

CASE_ONLY

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

FEMALE

Age

20 Years to 40 Years

Healthy volunteers

Yes

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

Design outcomes

Primary

Measure	Time frame	Description
Lordosis angle using an app	2025	Differentiation between lordosis, hyperlordosis and lumbar rectification

Secondary

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

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026