Osteoarthritis Clinical Trial
— TOPAZOfficial title:
Radiostereometric Analysis (RSA) of the PROFEMUR® Preserve Classic Femoral Components
Verified date | December 2016 |
Source | MicroPort Orthopedics Inc. |
Contact | n/a |
Is FDA regulated | No |
Health authority | Canada: Ethics Review Committee |
Study type | Interventional |
MicroPort Orthopedics (MPO) is conducting this study to investigate the primary stability of its PROFEMUR® Preserve Femoral Components using radiostereometric analysis (RSA). RSA allows precise measurement of micromotion around orthopedic implants and hence, may estimate long-term fixation to bone.
Status | Withdrawn |
Enrollment | 0 |
Est. completion date | December 2019 |
Est. primary completion date | December 2019 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 21 Years to 76 Years |
Eligibility |
Inclusion Criteria: - Subject is a candidate for primary THA for osteoarthritis - Subject is able to undergo primary THA procedure - Subject is a candidate to be implanted with the specified combination of components - Subject is willing and able to complete required study visits and assessments - Subject is willing to sign the approved Informed Consent document Exclusion Criteria: - Subject has any of the following contraindications at the time of the implantation: - 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; - Subjects 76 years of age or older - Subjects with post-traumatic arthritis in the affected hip - Subjects with rheumatoid arthritis in the affected hip - Subjects with hip dysplasia in the affected hip - Subjects with prior arthroplasty of the affected hip - Subjects that are morbidly obese (BMI > 35) - Subjects that are immuno-suppressed - Subjects with known or tested-positive allergy to metals - Subjects currently enrolled in another clinical investigation which could affect the endpoints of this protocol - Subjects unwilling or unable to sign the Informed Consent document - Subjects with substance abuse issues - Subjects who are incarcerated or have pending incarceration |
Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
Canada | Hopital Maisonneuve Rosemont | Montreal | Quebec |
Lead Sponsor | Collaborator |
---|---|
MicroPort Orthopedics Inc. |
Canada,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Assess the stability of the PROFEMUR® Preserve Classic stem with RSA to estimate its long-term performance. | Assessment of the quantity of migration to determine if the total migration of the stem and cup at 2 years post¬operatively are less than 1.2 mm and 2.6mm, and also less than 0.4mm. Assessment of continuous migration to determine if continuous migration, defined as 0.2mm of motion between 1 and 2 years as measured with RSA exists in the stem and cup. | 24 months | No |
Primary | Determine the migration patterns of the PROFEMUR® Preserve Classic stem with RSA | Assessment of migration in each individual plane (x, y, and z), as measured in mm. | 24 months | No |
Primary | Assess if migration pattern is greater than 0.2mm between 1 and 2 years | To determine if the wear rate device is substantially less than the scientifically accepted threshold of 0.1 mm/year for osteolysis. The outcomes will be compared to data from the literature, which states that motion greater than 0.2mm between 1 and 2 years suggests an implant is at risk for early loosening. | 24 months | No |
Secondary | Patient functional outcomes (HOOS) | The secondary objective is to determine if there is a significant difference in health status and functional outcomes (using the HOOS questionnaire) before and after total hip arthroplasty (THA) using the PROFEMUR® Preserve Femoral Components. | 24 months | No |
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