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Disorder of Bone Density and Structure, UnspecifiedBMD&BIGNCT02061904

Bone Mineral Density Changes of the Acetabulum After Revision Hip Arthroplasty Using Bone Impaction Grafting

A study testing DEXA: dual energy X-ray absorptiometry, Short Form Health Survey 12 and VAS-satisfaction in people with Disorder of Bone Density and Structure, Unspecified and Satisfaction, run by Rijnstate Hospital at 1 site in Netherlands.

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

Prospective explorative study for the investigation of short-term and medium-term outcomes regarding bone mineral density changes after revision hip arthroplasty making use of bone impaction grafting. Read more about this study

Who is it for?
Ages 35 to 75 years
What is being tested?
DEXA: dual energy X-ray absorptiometry, Short Form Health Survey 12 and VAS-satisfaction
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteNetherlands
Study dates
Jan 2014to Jan 2017
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 35 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • revision hip arthroplasty with acetabular defects eligible for bone impaction grafting
  • Diagnosis: acetabular osteolytic defects after primary total hip arthroplasty, planned for revision hip arthroplasty with bone impaction grafting.
  • Patient is between 35 and 75 years old.
  • Patient is expected to recover completely.
  • Patient is willing and able to come to follow-up examinations.
  • Patient has signed an informed consent.

Who cannot join

  • Infection of the hip joint or distant infection (may cause hematogenous spread to the implant site)
  • Hip fractures
  • Patient is younger than 35 years or older than 75 years.
  • Patient is not willing and/or able to come to follow-up examinations
  • Patient has not signed an informed consent
  • Pregnancy
Show all 12Show fewer
  • Relative contra-indications:
  • With regard to the patient's general health:
  • Metabolic disorders or medication (e.g. steroids) which may impair bone formation
  • Osteomalacia
  • Disorders of the immune system, caused by disease or immunosuppressive medication which increase the risk of infection.
  • Poor prognosis for good wound healing: decubitus ulcer, end-stage diabetes, severe protein deficiency and/or malnutrition

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • Rijnstate Hospital

    Arnhem, Gelderland, 6800WC

Other trials in Netherlands

About this study

Official title: Prospective Exploratory Study:Bone Mineral Density Changes of the Acetabulum After Revision Hip Arthroplasty Using Bone Impaction Grafting

Prospective explorative study for the investigation of short-term and medium-term outcomes regarding bone mineral density changes after revision hip arthroplasty making use of bone impaction grafting. Outcome measurements will include objective and subjective clinical data, complications and adverse events, radiographic data measurements recorded at several postoperative intervals.

Read the detailed description

Hypothesis, open questions and specific aims of the project:

We believe that it is important to gain further insight in the process of bone graft remodeling and the preservation of bone stock after bone impaction grafting.

Radiographs are far from conclusive and CT scan can not be repeated on regular intervals for obvious reasons. Prospective follow-up of the BMD of the bone impaction area will contribute to our further understanding. There is no literature available on BMD changes in the acetabulum after bone impaction grafting.

From our recent experiences with earlier research on BMD in specific ROI in the femoral neck we are motivated to further explore the potential of our DEXA technology and software in the field revision hip arthroplasty.

We hypothesize that BMD changes in the bone impaction grafted acetabulum can be adequately monitored with modern DEXA techniques.

Research Questions are:

  1. Will bone impaction grafting of the acetabulum result in a well preserved/remodelled bone stock within 2 years after revision hip arthroplasty?
  2. Can changes in BMD be interpreted as representative for the process of bone remodelling in the bone impacted area? Study design This trial as described in this protocol is a prospective explorative follow-up study recording the clinical, radiographic data, and bone mineral density data at specific time intervals (preoperative, within 2 weeks postoperative, at 3months, 6months, 1 year and 2 years postoperative). The data will be collected using SPSS (version 20.) Main objective: To prospectively assess the BMD at short and medium time intervals in specific ROI as an indicator for the process of bone remodelling and ossification of the bone impaction graft after revision hip arthroplasty.. Secondary Objectives: Clinical scores (SF-12, Oxford Hip score, VAS pain and VAS satisfaction) will be obtained. Vigilant identification of Adverse Events (AEs) will be maintained throughout the study. Mean changes in clinical scores, over time, will also be tested with repeated measurement statistics. Because clinical success is not always indicative of radiographic success and vice versa, correlations will be made. Sample size: Our study concerns an explorative study in twenty patients. Study duration: The expected duration of the study is approximately 3 years from the commencement of subject enrollment. Subject enrollment is expected to take 1 year. All subjects will be followed for at least two years after surgery until the last subject achieves two-years follow-up. Evaluation criteria The study is designed to evaluate possible clinical, radiographic and bone densitometry differences changes after revision hip arthroplasty. Evaluation criteria at different follow-up intervals. A Clinical:
  • the patient's own evaluation according to the Oxford Score, Dutch translation validated
  • the patient's evaluation of his general health with the SF-12 score , license to validated Dutch translation11
  • the patient's degree of pain and satisfaction with the prosthesis and the procedure. B Radiological:
  • X-ray evaluations of implant stability, migration, changing of cup or head angles, radiolucent lines, loosening and osteolysis. X-Rays should preferably be digital, at preoperative, 6 months, 1 year and 2 years.
  1. DEXA bone density measurements
  • Bone density measurements will be performed preoperative on the acetabulum on several regions of interests (ROI's) including the bone impaction grafting area. Once this ROI's of the acetabulum has been determined it can be digitalized and saved into the software, subsequently this ROI can be transported 4 days postoperative and at 4 days postoperative, 6 months, 1 year and 2 years.
  • This method has been tested in our earlier resurfacing study and has proved to be reliable and reproducable.
  • An independent radiologist will do the measurements on the DEXA-scan D Survival after revision hip arthroplasty with bone impaction grafting - According to Kaplan Meiers survival rates. E Complications and adverse events
  • Early and late complications possibly associated with revision hip arthroplasty and possible relationship with bone impaction grafting and surgical technique.
Being tested
DEXA: dual energy X-ray absorptiometry, Short Form Health Survey 12, VAS-satisfaction, VAS-pain, Harris Hip Score
Medical subject headings
Personal Satisfaction

What participants receive

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

  • DEXA: dual energy X-ray absorptiometryRadiation

    Also called Bone Mineral Density measurement

    Bone mineral density development measured with dual energy X-ray absorptiometry

  • Short Form Health Survey 12Other

    Also called SF12

    questionnaire for general health monitoring

  • VAS-satisfactionOther

    Also called Visual analoge Scale for satisfaction.

    questionnaire for intervention satisfaction monitoring

  • VAS-painOther

    Also called visual analog scale for pain

    questionnaire for pain monitoring

  • Harris Hip ScoreOther

    Also called HHS

    questionnaire for hip function monitoring

Study groups in NCT02061904
Study groupRoleWhat they receive
Bone Mineral DensityOtherBone mineral density measurement with "intervention" DEXA at the bone impaction graft site: DEXA: dual energy X-ray absorptiometry
Receives: Radiation: DEXA: dual energy X-ray absorptiometry
Hip functionOtherHip Function/mobility development: Harris Hip Score
Receives: Other: Harris Hip Score
pain experienceOtherPain experiences after surgery in the hip joint VAS-pain
Receives: Other: VAS-pain
General Patients Health conditionOtherPatients health condition monitoring: intervention SF12: Short Form Health Survey 12
Receives: Other: Short Form Health Survey 12
Intervention SatisfactionOtherPatients satisfaction development after the intervention VAS-satisfaction
Receives: Other: VAS-satisfaction

What is being measured

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

  1. Bone mineral density changes

    Acetabular bone mineral density measurements after bone impaction grafting using DEXA, changes in density compared to baseline levels: at < 2weeks postoperative, at 3, 6, 12 and 24 months postoperative

    Measured: 24 months

Timeline

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

  1. First posted13 Feb 2014 (estimated)
  2. Study startJan 2014
  3. Primary completionJan 2016
  4. Study completionJan 2017

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
Diagnosis
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02061904
Sponsor's protocol ID
BMD&BIG
Acronym
BMD&BIG
Status last verified
Oct 2017
First submitted
9 Feb 2014
Last updated
4 Oct 2017
Results posted
No
Data monitoring committee
No

Publications

  • Smolders JM, Pakvis DF, Hendrickx BW, Verdonschot N, van Susante JL. Periacetabular bone mineral density changes after resurfacing hip arthroplasty versus conventional total hip arthroplasty. A randomized controlled DEXA study. J Arthroplasty. 2013 Aug;28(7):1177-84. doi: 10.1016/j.arth.2012.08.025. Epub 2012 Dec 6.

    PubMed 23219623
  • Smolders JM, Hol A, Rijnders T, van Susante JL. Changes in bone mineral density in the proximal femur after hip resurfacing and uncemented total hip replacement: A prospective randomised controlled study. J Bone Joint Surg Br. 2010 Nov;92(11):1509-14. doi: 10.1302/0301-620X.92B11.24785.

    PubMed 21037344

Questions about this trial

What is this clinical trial studying?

A study testing DEXA: dual energy X-ray absorptiometry, Short Form Health Survey 12 and VAS-satisfaction in people with Disorder of Bone Density and Structure, Unspecified and Satisfaction, run by Rijnstate Hospital at 1 site in Netherlands.

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 Oct 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. 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?

Bone mineral density changes (time frame: 24 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02061904, which also lists 2 linked publications.

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 Oct 2017; AzTrials last refreshed its copy on 6 Nov 2026.

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