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Osteoarthritis, HipNCT01359540

Femoral Remodeling Following Total Hip Arthroplasty With OMNI Apex Modular™ and OMNI Apex ARC™ Stem Compared to Competitive Designs

An observational study of Osteoarthritis, Hip, run by Spokane Joint Replacement Center 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

This study compares the change in bone density which occurs after hip replacement with different femoral stem devices. Read more about this study

Who is it for?
Ages 20 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Osteoarthritis, Hip
What is being tested?
OMNI Apex Modular™ Hip Device and OMNI Apex ARC™ Hip Device
Type of treatment
Medical device
How many people
73 participants
Where
1 siteUnited States
Study dates
Nov 2009to Apr 2018
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 20 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Adult patients undergoing elective total hip arthroplasty

Who may be able to join

  • Minimum age 20 years, maximum age 80 years
  • Osteoarthritis of the hip
  • Elective THA
  • Signed Informed Consent

Who cannot join

  • Osteoporosis
  • Revisions
  • Clinically obese (>40 body mass index [BMI])
  • Femoral dysplasia
  • Trochanteric osteotomy
  • Inflammatory arthritis
Show all 11Show fewer
  • Breast-feeding, pregnancy, or women of childbearing potential without documentation of a negative pregnancy test and not utilizing contraception
  • Patients with a history of having taken or currently taking bisphosphonates, PTH, fluoride therapy or strontium ranelate or patients taking other chronic medications that in the investigator's opinion are known to affect bone mineral density in a substantial way
  • Patients with severe medical condition(s) that in the view of the investigator prohibits participation in the study
  • Use of other investigational agent in the last 30 days
  • Unable to sign Informed Consent

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 OMNI Apex Modular™ Hip Stem And The OMNI Apex ARC™ Hip Stem In Primary Total Hip Arthroplasty, Five-Year Clinical And DXA Analysis

This study compares the change in bone density which occurs after hip replacement with different femoral stem devices.

Being tested
OMNI Apex Modular™ Hip Device, OMNI Apex ARC™ Hip Device
Keywords
Total Hip Arthroplasty, Bone Loss, Femoral Remodeling, Bone mineral density, THA, DXA, DEXA, Dual Energy X-Ray Absorptiometry
Medical subject headings
Osteoarthritis, Hip, Bone Diseases, Metabolic

What participants receive

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

  • OMNI Apex Modular™ Hip DeviceDevice

  • OMNI Apex ARC™ Hip DeviceDevice

Study groups in NCT01359540
Study groupRoleWhat they receive
APEX ModularAPEX Modular Stem group
Receives: Device: OMNI Apex Modular™ Hip Device
ARC StemARC Stem group
Receives: Device: OMNI Apex ARC™ Hip Device

What is being measured

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

  1. Femoral bone mineral density

    Change in bone mineral density (BMD) as measured by DXA imaging.

    Measured: Baseline, 6 weeks, 6 months, 1, 2, 3, 4, and 5 years post-operative

Secondary outcomes (1)
  1. Harris Hip Score (HHS)

    Hip functional outcomes will be assessed using the Harris Hip Score.

    Measured: Pre-operative, 6 weeks, 6 months, 1, 2, 3, 4, and 5 years post-operative

Timeline

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

  1. First posted24 May 2011 (estimated)
  2. Study startNov 2009
  3. Primary completionApr 2018
  4. Study completionApr 2018

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
Case-control
Time perspective
Prospective
Enrolment
73 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01359540
Sponsor's protocol ID
SJRC-OMNH
Status last verified
Apr 2019
First submitted
22 May 2011
Last updated
26 Apr 2019
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

An observational study of Osteoarthritis, Hip, run by Spokane Joint Replacement Center 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 4 inclusion and 11 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 26 Apr 2019. 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?

Femoral bone mineral density (time frame: Baseline, 6 weeks, 6 months, 1, 2, 3, 4, and 5 years post-operative). 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 26 Apr 2019.

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