Is the Dynamic of the Pelvic Bone Altered After a Total Hip Replacement ?
DYPAMAT
1 other identifier
interventional
53
1 country
1
Brief Summary
Total hip replacement is one of the most common surgical procedure in France. In 2010, an estimated 147 513 total hip procedures were performed. This number is constantly increasing. Although it is common, it can lead to many complications. The intra-prosthetic luxation is the second one after aseptic loosening. The luxation risk is multifactorial and depends on the relative orientation of femoral et acetabular components. This orientation is influenced by statics and dynamics parameters. So far, the literature shows that only static parameters are considered by surgeons. Thus, in reference to Lewinneck publication, which states that the luxation risk is lower if the cup is oriented with 15° +/- 10° of anteversion and 40°+/- 10° of inclination with respect to the anterior pelvic plan (APP). Defined by the two anterosuperior iliacs spines and pubic symphysis. However, this approach is only static and do not take into account the variations of pelvic plan orientation during everyday life. To consider these variations of pelvic inclination, it is possible to measure the angle between APP and the horizontal (in lying position) or the vertical (in standing position) plan. Several devices allow the measure of pelvic inclination but they all have important limits (EOS radiography, scanner or navigation). A new device has been developed in Brest to measure this inclination in several positions of the daily life.This software has already been tested in healthy volunteers and results demonstrate an excellent accuracy and reproducibility. The goal of this study is to described the dynamic of the pelvic bone thanks to this ultrasound based device, and to assess the amount of variation induced by hip replacement procedures.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Feb 2021
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 2, 2020
CompletedFirst Posted
Study publicly available on registry
October 14, 2020
CompletedStudy Start
First participant enrolled
February 2, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 2, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
August 2, 2023
CompletedJanuary 11, 2022
January 1, 2022
2 years
October 2, 2020
January 10, 2022
Conditions
Outcome Measures
Primary Outcomes (1)
Variation of the pelvic incidence
The main evaluation criterion is the variation of the pelvic incidence between pre- and post-operative total hip replacements
Day 0 - Month 3
Secondary Outcomes (4)
Analysis of the correlation between the variation in pelvic incidence while sitting, standing and lying down and the implant settings
Day 0 - Month 3
Analysis of the correlation between variation in pelvic incidence while sitting, standing and lying down and clinical parameters (Harris hip score)
Day 0 - Month 3
Analysis of the correlation between variation in pelvic incidence while sitting, standing and lying down and clinical parameters (EVA)
Day 0 - Month 3
Analysis of the correlation between variation in pelvic incidence while sitting, standing and lying down and clinical parameters (Hand-ground distance)
Day 0 - Month 3
Study Arms (1)
Patient
EXPERIMENTALAll patients will have a clinical examination before surgery and another 3 months after surgery, each including : * A medical examination * 3 pelvic inclination measurements (1 sitting, 1 lying and 1 standing). These measurements will be done by ultrasound devices. * 2 EOS X-rays (1 standing and 1 sitting) of the lower limbs and spine * Harris hip score * Pain quantification thanks to an EVA scale * hand-ground distance
Interventions
Ultra-sound based measurements of the pelvic inclination lying, standing and seating position. EOX X-ray in seating position.
Eligibility Criteria
You may qualify if:
- Patient with primary or secondary hip arthritis, at stage II to III of the radiological classification of Tönnis and for whom total hip replacement is indicated by surgeon.
- Signed consent
- Patient beneficiary of a social security plan
You may not qualify if:
- Patient Under 18
- Patient Under protective measure (guardianship, curatorship) or unable to consent
- Patient requiring revision THR
- Patient with geographic mobility plan before the end of the follow-up
- Symptomatic contralateral hip
- Symptomatic dorsolumbar rachis
- Pelvis or spine surgery planed during the follow-up
- Pregnant or nursing woman
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
CHRU de Brest
Brest, 29200, France
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
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
October 2, 2020
First Posted
October 14, 2020
Study Start
February 2, 2021
Primary Completion
February 2, 2023
Study Completion
August 2, 2023
Last Updated
January 11, 2022
Record last verified: 2022-01
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL
- Time Frame
- Data will be available beginning three years and ending fifteen years following the final study report completion.
- Access Criteria
- Data access request will be reviewed by the internal committee of Brest University Hospital. Requestor will be required to sign and complete a data access agreement.
All collected data that underlie results in a publication.