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Joint DiseaseNCT02865447

Evaluation of Bone Mineral Density Changes After Total Hip Replacement: A Two-Year Clinical and DXA Analysis

An observational study of Joint Disease, run by MicroPort Orthopedics Inc. at 1 site in United States.

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

Sponsor is conducting this post-market study to evaluate the clinical outcome and femoral bone mineral density (BMD) changes associated with the PROFEMUR® PRESERVE hip stem when used as indicated for primary total hip arthroplasty in patients with osteoarthritis of the hip joint. Read more about this study

Who is it for?
Ages 21 to 80 years
Conditions the study is for
Joint Disease
What is being tested?
total hip arthroplasty implant
Type of treatment
Medical device
How many people
25 participants
Where
1 siteUnited States
Study dates
9 Mar 2017to 24 Aug 2020
Phase
Observational
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 21 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Subjects will be recruited from the investigator's private orthopedic practice from among patients who require a total hip arthroplasty.

Who may be able to join

  • To be included in the study, subjects must meet all of the following criteria:
  • Subject is minimum age 21 years, maximum age of 80
  • Subject is a candidate for primary THA for osteoarthritis of the hip
  • Subject is able to undergo primary elective THA procedure
  • Subject is willing and able to complete required study visits and assessments
  • Subject is willing to sign the Institutional Review Board/Ethics Committee (IRB/EC) approved Informed Consent document.

Who cannot join

  • Subjects will be excluded if they meet any of the following criteria:
  • Overt infection;
  • Distant foci of infections (which may cause hematogenous spread to the implant site);
  • Rapid disease progression as manifested by joint destruction or bone absorption apparent on roentgenogram;
  • Skeletally immature (less than 21 years of age at time of surgery);
  • Inadequate neuromuscular status (e.g., prior paralysis, fusion, and/or inadequate abductor strength), poor bone stock, poor skin coverage around the joint which would make the procedure unjustifiable;
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  • Neuropathic joints;
  • Known Hepatitis or HIV infection;
  • Neurological or musculoskeletal disease that may adversely affect gait or weight-bearing
  • Subjects with known osteoporosis of the affected hip
  • Subjects with prior arthroplasty of the affected hip
  • Subjects that are clinically obese (>40 body mass index [BMI])
  • Subjects with femoral dysplasia of the affected hip
  • Subjects with trochanteric osteotomy of the affected hip
  • Subject with inflammatory arthritis of the affected hip
  • Subjects currently taking, or have taken within 12 months of enrollment, bisphosphonates, parathyroid hormone (PTH), fluoride therapy or strontium ranelate or patients taking other chronic medications that in the investigator's opinion are known to affect BMD in a substantial way
  • Subjects with severe medical condition(s) that in the view of the investigator prohibits participation in the study
  • Subjects currently enrolled in another clinical study which could affect the endpoints of this protocol
  • Subjects with known substance abuse issues
  • Subjects who are incarcerated or have pending incarceration

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Spokane Joint Replacement Center

    Spokane, Washington, 99218

Other trials in United States

About this study

Official title: A Dual Energy X-ray Absorptiometry (DXA) Evaluation of Bone Density Changes After Hip Replacement. Performance of the PROFEMUR® PRESERVE Hip Stem in Total Hip Arthroplasty, Two-Year Clinical and DXA Analysis

Sponsor is conducting this post-market study to evaluate the clinical outcome and femoral bone mineral density (BMD) changes associated with the PROFEMUR® PRESERVE hip stem when used as indicated for primary total hip arthroplasty in patients with osteoarthritis of the hip joint.

Conditions
Joint Disease
Being tested
total hip arthroplasty implant
Keywords
dual energy x-ray absorptiometry, DEXA, DXA, total hip arthroplasty, PROFEMUR, PRESERVE, bone mineral density, BMD, osteoarthritis, THA, musculoskeletal disease
Medical subject headings
Joint Diseases, Osteoarthritis, Musculoskeletal Diseases

What participants receive

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

  • total hip arthroplasty implantDevice

    Also called PROFEMUR PRESERVE

    PROFEMUR PRESERVE total hip arthroplasty femoral stem

Study groups in NCT02865447
Study groupRoleWhat they receive
PRESERVE total hip arthroplasty implantSubjects to be prospectively implanted with the PROFEMUR PRESERVE total hip arthroplasty implant
Receives: Device: total hip arthroplasty implant

What is being measured

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

  1. Change in bone mineral density (BMD), per dual energy x-ray absorptiometry (DXA) imaging, from standard and custom Gruen zones around the femoral stem.

    Measured: 1 week Postoperative, 6 weeks, 6 Months, 12 Months, and 24 Months Postoperative

Secondary outcomes (5)
  1. Hip functional outcomes will be assessed using the Harris Hip score.

    Measured: Preoperative, 6 weeks Postoperative, 6 Months, 12 Months, and 24 Months Postoperative

  2. Implant loosening will be assessed by the presence of radiographic lucencies around the femoral stem.

    Measured: 6 weeks Postoperative, 6 Months, 12 Months, and 24 Months Postoperative

  3. Implant survivorship of the femoral stem will be calculated.

    Measured: 1 week Postoperative, 6 weeks, 6 Months, 12 Months, and 24 Months Postoperative

  4. Rate of complications will be assessed.

    Measured: Preoperative, 6 weeks Postoperative, 6 Months, 12 Months, and 24 Months Postoperative

  5. Hip functional outcomes will be assessed using the Forgotten Joint Score.

    Measured: 6 weeks Postoperative, 6 Months, 12 Months, and 24 Months Postoperative

Timeline

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

  1. First posted12 Aug 2016 (estimated)
  2. Study start9 Mar 2017
  3. Primary completion24 Aug 2020
  4. Study completion24 Aug 2020

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
25 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02865447
Sponsor's protocol ID
15-LJH-001
Status last verified
Aug 2022
First submitted
1 Jul 2016
Last updated
2 Aug 2022
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Joint Disease, run by MicroPort Orthopedics Inc. at 1 site in United States.

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 20 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 2 Aug 2022. 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 United States. 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?

Change in bone mineral density (BMD), per dual energy x-ray absorptiometry (DXA) imaging, from standard and custom Gruen zones around the femoral stem. (time frame: 1 week Postoperative, 6 weeks, 6 Months, 12 Months, and 24 Months Postoperative). 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 2 Aug 2022.

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