- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00116051
A Comparison of Two Surface Materials (Tantalum Versus Titanium Fiber Mesh) of Acetabular Components in Hip Arthroplasty
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
In younger patients, acetabulum components are most often implanted without the use of cement. A direct ingrowth of bone to the implant is crucial to the attainment of good results in those cases where cement is not employed. A new implant material (tantalum) has shown better properties than the implant material which is in use today (titanium). The advantages of tantalum implants are greater porosity, reduced stiffness and a higher friction coefficient than with titanium implants.
Hypothetically, the higher porosity of tantalum should enhance bone ingrowth due to better osteoconductivity in terms of:
- less migration of the acetabulum component, as evaluated by RSA;
- increased BMD in the bone surrounding acetabulum components;
- fewer postoperative complaints on the Harris Hip Score and visual analog scale scores.
The migration of acetabulum components will be evaluated by RSA. The follow-up RSA will be scheduled for week 1, as well as 3 months, 12 months and 2 years after surgery. Bone mineral density around the implanted femoral component will be examined by DEXA scan at week 1, as well as 1 year and 2 years after surgery.
Study Type
Enrollment
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
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Aarhus, Denmark, 8000
- Orthopaedic Center, Aarhus University Hospital,
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patients with primary arthritis in the hip.
- Patients with sufficient bone density to allow uncemented implantation of a femoral component.
- Informed patient consent in writing.
Exclusion Criteria:
- Patients with neuromuscular or vascular disease in the affected leg.
- Patients found upon operation to be unsuited for uncemented acetabulum component.
- Patients who regularly take non-steroid anti-inflammatory drugs (NSAID) and cannot interrupt intake for the postoperative phase of the study.
- Patients with fracture sequelae.
- Female patients of childbearing capacity.
- Hip joint dysplasia.
- Sequelae to previous hip joint disorder in childhood.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
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Acetabular component migration evaluated by RSA
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Secondary Outcome Measures
Outcome Measure |
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BMD in the surrounding bone of the acetabular implant
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Kjeld Søballe, MD., Prof., Orthopaedic Center, Aarhus University Hospital, Aarhus, Denmark
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 200330159
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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