Effects of weight loss after bariatric surgery on spine health in obese patients

Prospective Study on the Consequences of Weight Loss After Bariatric Surgery on Obese Patients' Spine : Effects on Low Back Pain, Sagittal Alignment and Lipomatosis.

Not applicable Interventional Assistance Publique - Hôpitaux de Paris · NCT04893954

This study is testing how losing weight after bariatric surgery affects spine health and back pain in obese patients.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment80 (estimated)
Ages18 Years and up
SexAll
SponsorAssistance Publique - Hôpitaux de Paris Academic / other
Locations1 site (Paris)
Trial IDNCT04893954 on ClinicalTrials.gov

What this trial studies

This study investigates how significant weight loss following bariatric surgery impacts the spine of obese patients, particularly focusing on low back pain, sagittal alignment, and lipomatosis. Researchers will assess clinical parameters alongside radiological and MRI evaluations to understand the relationship between weight loss and spinal health. The study aims to identify factors that may contribute to either an increase or decrease in back pain after weight loss. By analyzing these effects, the study seeks to provide insights into the management of back pain in post-bariatric surgery patients.

Who should consider this trial

Good fit: Ideal candidates are obese patients over 18 years old who have undergone bariatric surgery and are being followed up at Pompidou's Hospital.

Not a fit: Patients with a history of spine surgery or those who have experienced postoperative complications from bariatric surgery may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved management strategies for low back pain in obese patients after weight loss.

How similar studies have performed: While the relationship between obesity and back pain has been noted, this specific investigation into the effects of weight loss on spinal health is relatively novel and has not been extensively studied.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age \> 18 years old
* BMI \> 40 or BMI \> 35 with comorbidities due to obesity ( criteria for bariatric surgery)
* Follow up in Pompidou's Hospital Nutrition service
* Bariatric surgery intervention ( Sleeve gastrectomy or By pass)
* Follow up possible for one year or more
* Being covered by French social insurance
* Consent to participate in the study

Exclusion Criteria:

* History of spine surgery
* Bariatric surgery postoperative complication
* Non mastering of french language
* MRI contraindication
* Patient under legal protection ( e.g. guardianship)

Where this trial is running

Paris

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Low Back Pain in Obese Patients After Important Weight LossBariatricSpineObeseLow back painSagittal alignmentLipomatosis
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.