Pelvic Area Extension Measurements for Four Types of Lumbopelvic Balance Using Three Different Methods

NCT01909258 | Completed

• 2 other identifiers: AOI/2012/PK2013-A00232-43
• Study Type: interventional
• Target: 120
• Locations: 1 country
• Sites: 2

Brief Summary

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.

Conditions

Healthy Volunteer

Outcome Measures

Primary Outcomes (3)

• 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)

Secondary Outcomes (11)

• Goniometric measurement of global extension reserve

  baseline (day 0)

• Photographic measurement of global extension reserve

  baseline (day 0)

• Roussouly classification: 1, 2, 3 or 4

  baseline (day 0)

• Pelvic incidence (°)

  Baseline (day 0)

• Standing sacral slope at rest

  Baseline (day 0)

Study Arms (1)

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.

Other: Goniometric measure of pelvic extension reserve.; Other: Photographic measure of pelvic extension reserve.; Other: EOS measure of pelvic extension reserve.

Interventions

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).

The study population.

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).

The study population.

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.

The study population.

Eligibility Criteria

• Age: 20 Years - 40 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• The healthy volunteer must have given his/her informed and signed consent
• The healthy volunteer must be insured or beneficiary of a health insurance plan

You may not qualify if:

• The healthy volunteer is participating in another study
• The healthy volunteer is under judicial protection, under tutorship or curatorship
• The healthy volunteer refuses to sign the consent
• It is impossible to correctly inform the healthy volunteer
• The healthy volunteer is pregnant, parturient, or breastfeeding
• The healthy volunteers had a history of chronic pain or surgery at the hip, the thoracolumbar spine or the sacroiliac area
• The healthy volunteer has a hip, knee or ankle abnormality

Sponsors & Collaborators

• Centre Hospitalier Universitaire de Nīmes: lead

Study Sites (2)

CHU de Montpellier - Hôpital Lapeyronie

Montpellier, 34295, France

Location

CHU de Nîmes - Hôpital Universitaire Carémeau

Nîmes, 30029, France

Location

Related Publications (1)

• 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.

  PMID: 35604878 RESULT

Study Officials

• Pascal Kouyoumdjian, MD, PhD

  Centre Hospitalier Universitaire de Nîmes

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: OTHER
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 18, 2013
• First Posted: July 26, 2013
• Study Start: January 1, 2015
• Primary Completion: April 25, 2016
• Study Completion: April 25, 2016
• Last Updated: December 22, 2025

Record last verified: 2016-05

Locations

FR (2)