Clinical trial Recruiting at 1 site Interventional Ages 18 to 79

Looking at balance and movement in adults with sagittal spinal misalignment

Official title: Multimodal Bio-mechanical Analysis of Adult Spinal Deformity With Sagittal Plane Misalignment

Run by Universitaire Ziekenhuizen KU Leuven · NCT04812730 · Data updated 2026-11-12

This project will try using 3D imaging and motion analysis to see how adults aged 45+ with sagittal plane spinal misalignment stand and walk compared with people without deformity.

Quick facts

Study typeInterventional
Ages18 Years to 79 Years
SexAll
Enrollment265 (estimated)
SponsorUniversitaire Ziekenhuizen KU Leuven
Academic / other
Locations1 site (Leuven, Vlaams-Brabant)
StatusRecruiting
StartedJanuary 2016
Main results expectedDecember 2028
Study endsDecember 2028
Registry record updatedMarch 13, 2026
Trial IDNCT04812730 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 45 or older with symptomatic adult spinal deformity and sagittal malalignment who can walk at least 50 meters independently, score ≥25 on the MMSE, and are willing to attend in-person follow-up visits.

Probably not a fit

People without sagittal plane deformity, those unable to walk independently, or individuals with significant cognitive impairment are unlikely to benefit from participating.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Researchers will combine EOS stereo-radiography (3D imaging) with dynamic motion analysis and neuromuscular measurements to characterize how the trunk, pelvis, and lower limbs are recruited during standing and walking in adults with sagittal spinal misalignment. The protocol compares static 2D radiographs versus 3D EOS results, and static posture versus dynamic gait, including pre- and postoperative evaluations where applicable. Both a pathological group of symptomatic adults and an asymptomatic control group (age ≥45) will attend in-person testing at UZ Leuven for standardized imaging, motion capture, and questionnaire follow-up. The goal is to clarify mechanisms behind balance failure and postoperative complications so diagnostic work-ups can be improved.

Why it matters

Potential benefit: If successful, the work could lead to better diagnostic tests and surgical planning that reduce under-correction and postoperative alignment complications.

How similar studies have gone: Static radiographic measures like SVA and T1-SPI have been linked to outcomes in past work, but multimodal dynamic analyses combining EOS 3D imaging and motion capture remain relatively novel and not yet proven to change care.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pathological group

  1. Age \>= 45 years
  2. Diagnosis of adult congenital, degenerative, idiopathic or iatrogenic spinal deformity
  3. Scoring at least 25 out of 30 on Mini Mental State Examination
  4. Ability to walk at least 50 meters distance independently without a walking aid
  5. Sagittal malalignment: PI-LL ≥ 25 degrees; sagittal vertical axis \>5cm; pelvic tilt \>25° and/or thoracic kyphosis \> 60° and/or coronal malalignment: thoracic scoliosis 30 ≥ degrees; thoracolumbar/lumbar scoliosis ≥ 30 degrees; global coronal malalignment \>3cm, posterior spinal fusion \> 4 levels + iliac fixation.
  6. Ability and willingness of patient to attend follow-up visits and complete patient questionnaires
  7. Completed patient informed consent
* Control group

  1. Asymptomatic adults not suffering from a spinal deformity leading to a pathological sagittal alignment presenting as volunteer in the University Hospitals Leuven, Belgium
  2. Age \>=45 years old
  3. Scoring at least 27 out of 30 on Mini Mental State Examination
  4. Ability to walk at least 1000 meters distance independently without a walking aid
  5. Ability and willingness of patient to attend follow-up visits and complete patient questionnaires
  6. Completed patient informed consent

Exclusion Criteria:

* Pathological group

  1. Age \< 45 years old
  2. Absence of adult spinal deformity
  3. Scoring less than 25 out of 30 on Mini Mental State Examination
  4. Non-ability to walk at least 50 meters distance independently, with or without a walking aid.
  5. Missing patient informed consent
  6. Patients presenting with a neurological disease affecting balance other than Parkinson's disease such as stroke and/or Vestibular lesion
  7. Patients with a current history of diagnosed musculoskeletal disorders of the trunk and/or lower extremities affecting the motor performance such as severe hip arthrosis with or without flexion contracture, severe knee arthrosis, severe ankle arthrosis, severe leg length discrepancy (\> 3 cm)
  8. BMI\>30
* Control group

  1. Age \< 45 years old
  2. Backpain and/or Sciatica at time of the study
  3. Presence of adult spinal deformity leading to a pathological sagittal alignment
  4. Scoring less than 27 out of 30 on Mini Mental State Examination
  5. Non-ability to walk at least 1000 meters distance independently without a walking aid
  6. Missing patient informed consent
  7. Patients presenting with a neurological disease affecting balance such as Stroke, Parkinson's disease and/or Vestibular lesion
  8. Patients with a current history of diagnosed musculoskeletal disorders of the trunk and/or lower extremities affecting the motor performance such as severe hip arthrosis with or without flexion contracture, severe knee arthrosis, severe ankle arthrosis, severe leg length discrepancy (\> 3 cm)
  9. BMI \> 27

Where it's running

  • UZ Leuven
    Leuven, Vlaams-Brabant, Belgium
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.