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| ID | Type | Description | Link |
|---|---|---|---|
| 2013-A00232-43 | Other Identifier | ANSM |
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The main objective of this study is to describe for the first time the expansion reserve of the pelvic area (measurements using the EOS system) for each of the four morphotypes (Roussouly classification) commonly found in a population of healthy volunteers.
Secondary objectives:
A. The intra-judge reproducibility and the interrater reliability for the different tools used to measure hip extension will be evaluated. Intra-judge reproducibility (photography) and interrater reliability (goniometry and photography) for the different tools used for measuring hip extension will be evaluated.
B. The concordance between EOS measurements and measurements acquired via goniometry and photography will be evaluated.
C. Describe certain radiographic measurements via the EOS system for the four morphotypes
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| The study population. | Experimental | Healthy volunteers 20 to 40 years of age. Intervention: Goniometric measure of pelvic extension reserve. Intervention: Photographic measure of pelvic extension reserve. Intervention: EOS measure of pelvic extension reserve. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Goniometric measure of pelvic extension reserve. | Other | The pelvic extension reserve (°) is measured via goniometry. The goniometric measurements will be taken once by an investigator on all subjects and once by a different investigator on half of the subjects (with balanced distribution of morphotypes). |
| Measure | Description | Time Frame |
|---|---|---|
| EOS measurement of intrinsic reserve extension = angular variation of the sacral slope (left and right sides) | = RIEeos | baseline (day 0) |
| EOS measurement of extrinsic extension reserve | = REEeos = angular variation of a specific angle (line joining the center of the sacral plate and the midpoint of the segment involving the center of the femoral head and the line joining this point to the top of the intercondylar knee notch) (left and right sides) | Baseline (day 0) |
| EOS measurement of global extension reserve | = RIEeos + REEeos (left and right sides) | Baseline (day 0) |
| Measure | Description | Time Frame |
|---|---|---|
| Goniometric measurement of global extension reserve | (left and right sides) | baseline (day 0) |
| Photographic measurement of global extension reserve | (left and right sides) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Pascal Kouyoumdjian, MD, PhD | Centre Hospitalier Universitaire de Nīmes | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| CHU de Montpellier - Hôpital Lapeyronie | Montpellier | 34295 | France | |||
| CHU de Nîmes - Hôpital Universitaire Carémeau |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 35604878 | Result | Kouyoumdjian P, Mansour J, Haignere V, Demattei C, Maury E, George D, Coulomb R. Hip-Spine Relationship between Sagittal Balance of the Lumbo-Pelvi-Femoral Complex and Hip Extension Capacity: An EOS Evaluation in a Healthy Caucasian Population. Global Spine J. 2024 Jan;14(1):265-271. doi: 10.1177/21925682221103831. Epub 2022 May 23. |
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| Photographic measure of pelvic extension reserve. | Other | The pelvic extension reserve (°) is measured using photography. Photographic measurements will be performed twice one investigator and 1 time by a different investigator (total of three measurements). |
|
| EOS measure of pelvic extension reserve. | Other | The pelvic extension reserve (°) is measured using the imaging system EOS. Five X-rays will be made for each volunteer on the EOS system. The first is a frontal shot in a bipedal position, reference snapshot for verifying the absence of spinal deformity or hip pathology. The second and third are profile shots, one on the left and one on the right, whole body, bipedal position; serving as a reference picture. The fourth is profile shot, whole body, with the left hip in hyperextension. For maximum left hip hyperextension, the right leg rests on a step of varying height, and the hip is maximally flexed. The fifth is a profile shot, full body, with the right hip in hyperextension. For a maximum right hip hyperextension, the left leg rests on a step of varying height, and the hip is maximally flexed. |
|
| baseline (day 0) |
| Roussouly classification: 1, 2, 3 or 4 | baseline (day 0) |
| Pelvic incidence (°) | Pelvic Incidence is defined as the angle between two lines: the line perpendicular to the sacral endplate at the middle of the sacral endplate to the line between the middle of the sacral endplate to the middle of the femoral heads. | Baseline (day 0) |
| Standing sacral slope at rest | Baseline (day 0) |
| Standing sacral slope in extension | Baseline (day 0) |
| Standing pelvic tilt at rest | Baseline (day 0) |
| Standing pelvic tilt in extension | Baseline (day 0) |
| Standing anterior pelvic plane | Baseline (day 0) |
| The front acetabular inclination while standing | Baseline (day 0) |
| The sagittal acetabular inclination while standing | Baseline (day 0) |
| Nîmes |
| 30029 |
| France |