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Osteoarthritis, HipPhase 1NCT01791738

Acetabular Shell Positioning Using Patient Specific Instruments

A Phase 1 study testing Acetabular positioning system in people with Osteoarthritis, Hip and Rheumatoid Arthritis, run by The Cleveland Clinic 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

The proposed study is a double-blinded randomized controlled trial comparing patient specific instruments with solely standardized instruments and pre-operative planning used for the placement of the acetabular cup prosthesis used in total hip arthroplasty. Read more about this study

Who is it for?
Ages 18 to 85 years
What is being tested?
Acetabular positioning system
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
1 siteUnited States
Study dates
Jan 2011to Apr 2012
Phase
Phase 1
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

  • Subjects to be included in this protocol will be adult males and females of all races and socioeconomic status meeting the following criteria:
  • Primary, unilateral direct lateral or posterior THA
  • 18 to 85 years old at time of surgery
  • Able to get a pre- and post-operative CT scan at the Cleveland Clinic

Who cannot join

  • The following criteria will exclude subjects from this protocol:
  • Significant metal in the joint that results in metal artifact on the pre--operative CT scan, thereby compromising the ability to visualize the acetabulum on the pre-operative simulator.
  • Pregnancy
  • Incarceration
  • Condition deemed by physician or medical staff to be non-conducive to patient's ability to complete the study, or a potential risk to the patient's health and well-being.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The Cleveland Clinic

    Cleveland, Ohio, 44195

Other trials in United States

About this study

Official title: Comparison of Acetabular Shell Position Using Patient Specific Instruments vs. Standard Surgical Instruments: A Randomized Clinical Trial

The proposed study is a double-blinded randomized controlled trial comparing patient specific instruments with solely standardized instruments and pre-operative planning used for the placement of the acetabular cup prosthesis used in total hip arthroplasty.

The investigators will enroll 36 patients who have consented to total hip arthroplasty for treatment of hip pathology. This treatment is a standard of care. Patients will receive standard of care pre- and post-operative care and placement of standard of care implants all of which are commercially available and FDA approved for general use for the clinical indications used in these patients. All patients will receive a pre-operative CT scan for surgical planning and comparison with post-operative CT scan. The difference in intervention between the groups will be the creation and use of patient specific instruments from the pre-operative planning session. These instruments will be used for placement of an indexing peripheral guide wire to direct acetabular preparation and placement of the shell assisting standard surgical instruments. Print-offs from the pre-operative plan will also be used in the treatment group.

The post-operative scan will be performed within two weeks of the surgery for both the treatment and control groups. The investigators will analyze the difference in acetabular shell placement (acetabular version and abduction angle) from the pre-operatively planned CT scan. These differences will be compared between the control and experimental groups.

Read the detailed description

No further details to report.

Being tested
Acetabular positioning system
Keywords
Total Hip Arthroplasty (THA), Patient-Specific Instruments, Acetabular Cup Placement, Accuracy
Medical subject headings
Osteoarthritis, Hip, Arthritis, Rheumatoid, Osteonecrosis

What participants receive

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

  • Acetabular positioning systemProcedure or surgery

    Pre-operative planning through 3D software with design and fabrication of patient specific instruments for placement of a guide pin to be used to aid in bone preparation for insertion of an acetabular cup in total hip arthroplasty

Study groups in NCT01791738
Study groupRoleWhat they receive
Acetabular positioning systemExperimentalPre-operative planning through 3D software with design and fabrication of patient specific instruments for placement of a guide pin to be used to aid in bone preparation for insertion of an acetabular cup in total hip arthroplasty
Receives: Procedure: Acetabular positioning system
Standard total hip arthroplastyNo interventionEach surgeon will use their standard methods of pre-operative planning using pre-operative x-rays, and complete the procedure using standard surgical instruments for total hip arthroplasty.

What is being measured

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

  1. Difference between planned and actual values of Abduction and Version.

    Measured: Through 2 weeks after surgery.

Timeline

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

  1. First posted15 Feb 2013 (estimated)
  2. Study startJan 2011
  3. Primary completionApr 2012
  4. Study completionApr 2012

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 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01791738
Sponsor's protocol ID
CCF 10-1138
Status last verified
Jul 2015
First submitted
7 Feb 2013
Last updated
10 Jul 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Acetabular positioning system in people with Osteoarthritis, Hip and Rheumatoid Arthritis, run by The Cleveland Clinic 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 5 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 10 Jul 2015. 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.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Difference between planned and actual values of Abduction and Version. (time frame: Through 2 weeks after surgery.). 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 10 Jul 2015.

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