Preliminary Study of the Sagittal Alignment of the Lumbo-pelvic Complex in a Sitting Position

NCT01323127 | Completed

• 2 other identifiers: LOCAL/2010/AD-032010-A01536-33
• Study Type: observational
• Target: 20
• Locations: 1 country
• Sites: 1

Brief Summary

The main objective of this study is to investigate the influence of seat type (straight chair versus "ergonomic" chair) on the sagittal alignment of the lumbo-pelvic complex in two different postures compared to standing for each individual in both a chronic-back-pain and a non-chronic-back-pain population.

Conditions

Back Pain; Low Back Pain

Outcome Measures

Primary Outcomes (1)

• % variation in the pelvic incidence angle in sitting compared to standing

  Upon xray; day 1

Secondary Outcomes (3)

• % variation in the sacral slope angle in sitting compared to standing

  upon xray; Day 1

• % variation in the pelvic tilt angle in sitting compared to standing

  upon xray; Day 1

• % variation in the lumbar lardosis angle in sitting compared to standing

  upon xray; Day 1

Study Arms (2)

Chronic back pain

This group of patients has had chronic back pain for longer than 3 months.

Procedure: Sagital xrays

Non chronic back pain

This group of patients is hospitalized for cardio physical therapy, and has no lumbar-pelvic complications. Patients are selected from the hospitalized population according to age, sex, and BMI in order to match chronic back pain patients.

Procedure: Sagital xrays

Interventions

Sagital xrays PROCEDURE

5 xrays will be taken: (1) Upright standing position; (2) Upright, straight chair position; (3) Slouching, straight chair position; (4) Upright, ergonomic chair position; (5) Slouching, ergonomic chair position.

Chronic back pain; Non chronic back pain

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Two populations are compared: one with chronic back pain, and the other a group of hospitalized patients with no lombo-peliven complications.

You may qualify if:

• The patient must have given his/her informed and signed consent
• The patient must be insured or beneficiary of a health insurance plan
• Patient has chronic lombalgia (\> 3 months)
• Patient has discopathy evidenced by standard imaging of the lumbar spine
• Patient does not have chronic lombalgia or neurological symptoms
• Patients hospitalized for cardiovascular physical therapy which does not interfere with the sagital alignment of the lombo-pelivien complex (post-infarctus care, cardiac insufficiency)

You may not qualify if:

• The patient is participating in another study
• The patient is under judicial protection, under tutorship or curatorship
• The patient refuses to sign the consent
• It is impossible to correctly inform the patient
• The subject has had more than two x-rays, or similar ray exposure during the previous year
• The subject has a professional activity or hobby that exposes him/her to radiation
• The subject has a lombo-pelivien malformation

Sponsors & Collaborators

• Centre Hospitalier Universitaire de Nīmes: lead

Study Sites (1)

Centre Hospitalier Universitaire de Nîmes

Nîmes, Gard, 30029, France

Location

Related Publications (1)

• Vaucher M, Isner-Horobeti ME, Demattei C, Alonso S, Herisson C, Kouyoumdjian P, van Dieen JH, Dupeyron A. Effect of a kneeling chair on lumbar curvature in patients with low back pain and healthy controls: A pilot study. Ann Phys Rehabil Med. 2015 Jun;58(3):151-6. doi: 10.1016/j.rehab.2015.01.003. Epub 2015 May 5.

  PMID: 25956202 RESULT

MeSH Terms

Conditions

Back Pain; Low Back Pain

Condition Hierarchy (Ancestors)

Pain; Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Arnaud Dupeyron, MD PhD

  Centre Hospitalier Universitaire de Nîmes

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: March 24, 2011
• First Posted: March 25, 2011
• Study Start: April 1, 2011
• Primary Completion: December 10, 2011
• Study Completion: December 10, 2011
• Last Updated: November 17, 2025

Record last verified: 2015-03

Locations

FR (1)