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Hip FracturesHIPEOSNCT03603470

Total Hip Arthroplasty Instability and Lumbo-pelvic Kinematics: EOS Imaging Assessment of Variation in Spinal and Pelvic Parameters From Standing to Sitting

A study testing EOS imagery in people with Hip Fractures, run by Centre Hospitalier Universitaire de Nīmes at 2 sites in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The authors hypothesize that a pelvic kinematic disorder, demonstrated by a significant decrease in sacral slope, is associated with the risk of instability of total hip prosthesis, the sacral slope being measured by an EOS imaging system during the transition to sitting in unstable patients versus patients with no… Read more about this study

Who is it for?
Ages 18 to 85 years
Conditions the study is for
Hip Fractures
What is being tested?
EOS imagery
Could I receive a placebo?
No, everyone receives an active treatment
How many people
80 participants
Where
2 sitesFrance
Study dates
6 Jul 2018to 1 Feb 2019
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • The patient must have given their free and informed consent and signed the consent form
  • The patient must be a member or beneficiary of a health insurance plan
  • The patient must be at least 18 years old and less than 85 years old
  • Patient has a conventional first intention total hip arthroplasty (not dual mobility) by posterior approach
  • "Case" patients have at least one previous episode of prosthetic dislocation repaired with surgery
  • "Control" patients have no previous episode of prosthetic dislocation with more than 2 year since initial intervention

Who cannot join

  • The subject is participating in a category 1 interventional study, or is in a period of exclusion determined by a previous study
  • The subject refuses to sign the consent
  • It is impossible to give the subject informed information
  • The patient is under safeguard of justice or state guardianship
  • Patient is pregnant, parturient or breastfeeding
  • Patient with lumbar instrumentation
Show all 12Show fewer
  • Patient with severe dementia (Mini Mental State Examination < 10)
  • Patient with American Society of Anesthesiologists score ≥ 4
  • Patient experience multiple falls
  • Patient requiring early revision surgery (<15 days postoperatively
  • Patient with obvious implant positioning error on an X-ray of the pelvis.
  • Patient with dislocation of traumatic origin (significant kinetic trauma)

Trial locations and contacts

2 sites in 1 country.

France2 sites
  • CHU Lapeyronie de Montpellier

    Montpellier, 34295

  • CHU Nimes

    Nîmes, 30029

Other trials in France

About this study

The authors hypothesize that a pelvic kinematic disorder, demonstrated by a significant decrease in sacral slope, is associated with the risk of instability of total hip prosthesis, the sacral slope being measured by an EOS imaging system during the transition to sitting in unstable patients versus patients with no history of instability.

Conditions
Hip Fractures
Being tested
EOS imagery
Medical subject headings
Hip Fractures

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • EOS imageryOther

    Whole body EOS imaging in seated and standing position

Study groups in NCT03603470
Study groupRoleWhat they receive
Patients with previous prothesis instabilityOtherNot described
Receives: Other: EOS imagery
Patients without prothesis instabilityOtherNot described
Receives: Other: EOS imagery

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Sacral slope between standing to sitting difference between groups

    Sacral slope between standing to sitting difference between groups

    Measured: Day 0

  2. Rate of type 1 pelvic kinematic disorder between groups

    Measured by sacral slope difference from standing to seated position < 12°.

    Measured: Day 0

Secondary outcomes (9)
  1. Lumbar lordosis between standing and seating between groups

    degree

    Measured: Day 0

  2. Femoroacetabular flexion between standing and seating between groups

    degree

    Measured: Day 0

  3. Lewinnek plane (Anterior pelvic plane) between standing and seating between groups

    degree

    Measured: Day 0

  4. Pelvic version between standing and seating between groups

    degree

    Measured: Day 0

  5. Classification of patients' pelvic kinematic disorder (Type 1 or 2)

    Type 1 = Difference in sacral slope between standing and seated position < 12° Type 2 = pelvic version < 20° standing

    Measured: Day 0

  6. Classification of patients according to pelvic incidence

    Presence/absence

    Measured: Day 0

  7. Classification of patients according to sacral slope

    Presence/absence

    Measured: Day 0

  8. Classification of patients according to sagittal imbalance

    Presence/absence of: Sagittal Vertical Axis > 50 mm; Spino-Sacral Angle < 127°

    Measured: Day 0

  9. Evolution of acetabular positioning (anteversion and inclination in degree) from standing to sitting

    Degree

    Measured: Day 0

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Jul 2018
  2. Study start6 Jul 2018
  3. Primary completion1 Feb 2019
  4. Study completion1 Feb 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03603470
Sponsor's protocol ID
AOIGCSMERRI/2017/PK-01
Acronym
HIPEOS
Status last verified
Aug 2020
First submitted
2 Jul 2018
Last updated
4 Aug 2020
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing EOS imagery in people with Hip Fractures, run by Centre Hospitalier Universitaire de Nīmes at 2 sites in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Aug 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Sacral slope between standing to sitting difference between groups (time frame: Day 0). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Aug 2020.

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