Osteoarthritis Clinical Trial
Official title:
Two and Five-Year Survivorship of Unicompartmental Knee Arthroplasty Using DePuy Sigma HP Replacement
Verified date | March 2018 |
Source | Mississippi Sports Medicine and Orthopaedic Center |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
This study will be conducted to assess the survivorship of a particular prosthesis used in unicompartmental knee arthroplasties. Patients undergoing this procedure have been diagnosed with isolated medial or lateral compartmental arthritis and have failed conservative treatment. The patients received a unicompartmental knee replacement using the Sigma® HP Partial Knee System.
Status | Completed |
Enrollment | 300 |
Est. completion date | December 2016 |
Est. primary completion date | December 31, 2015 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - Adult patient over the age of 18 - Diagnosis of isolated medial or lateral compartmental osteoarthritis of the knee joint - Must have failed conservative treatment and received a unicompartmental knee arthroplasty between August 21, 2008 and October 31, 2009. - Must have received the Sigma® HP Partial Knee System. - Must have received the surgery from Dr. Almand, Dr. Johnson, or Dr. Pickering at Mississippi Sports Medicine and Orthopaedic Center. - Must be willing to provide written consent to participate in the study. - Subjects who do not have the legal capacity to consent may be enrolled in the study by a Legally Authorized Representative (LAR). The LAR must provide verification that they have the legal authority to represent the subject. Exclusion Criteria: - Did not receive a unicompartmental knee arthroplasty between August 21, 2008 and October 31, 2009. - Did not receive a unicompartmental knee arthroplasty using the Sigma® HP Partial Knee. - Did not receive their unicompartmental knee replacement from Dr. Almand, Dr. Johnson, or Dr. Pickering at Mississippi Sports Medicine and Orthopaedic Center. - Subjects lost to follow-up for any reason including, but not limited to: refusal to consent, death, or geographic isolation will also be excluded from the study. |
Country | Name | City | State |
---|---|---|---|
United States | Mississippi Sports Medicine and Orthopaedic Center | Jackson | Mississippi |
Lead Sponsor | Collaborator |
---|---|
Mississippi Sports Medicine and Orthopaedic Center | DePuy Orthopaedics |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Five-Year Survivorship | The primary endpoint of the study is to determine the five-year survivorship of the Sigma® HP Partial Knee System with failure defined as revision for any reason. | Five Years Post-Op | |
Secondary | Five-Year Survivorship Alternately Defining Failure and Two-Year Survivorship | One secondary endpoint of the study is to determine the five-year survivorship of the prosthesis with alternately defining failure as: failure of implant, failure secondary to infection, failure secondary to progression of arthritis, failure secondary to periprosthetic fracture. We also want to determine the two-year survivorship with failure defined as revision for any reason. |
Two Years and Five Years Post-Op | |
Secondary | Functional Outcomes | Another secondary endpoint of the study is to analyze the functional outcomes for five-year data based on the Knee Society score and the KOOS (Knee Injury and Osteoarthritis Outcome Score) score, reported as changes from the pre-operative score. By using both rating systems, an appropriate evaluation of the functional outcome of the surgery should be obtained. | Five Years Post-Op | |
Secondary | Radiographic Outcomes | Another secondary endpoint of the study is to determine the radiographic outcomes based upon the radiographic assessment using the Knee Society scoring system, reported as changes from the pre-operative assessment. Additionally, we want to radiographically assess lucencies at the bone cement and implant cement interface to measure wear and loosening of the prosthesis. | Pre-Operatively, Two and Five-Year Post-Op | |
Secondary | Adverse Advents | We also want to examine the type and frequency of adverse events as a secondary endpoint of the study. Safety will be evaluated with summary of adverse events. | Post-Operatively |
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