Study Stopped
Due to the pandemic, multiple sites were unable to complete patient visits resulting in less-than-optimal postoperative follow-up occurred. Therefore, study objectives were not met and the decision was made to close the study early.
Triathlon Tritanium Knee Outcomes Study
1 other identifier
interventional
680
1 country
10
Brief Summary
The success of the Triathlon Tritanium Knee will be determined by comparing the rate of absence of revision for aseptic loosening of the tibial baseplate at 2 years with the rates reported in the literature.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Oct 2014
Longer than P75 for not_applicable
10 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 2, 2014
CompletedFirst Posted
Study publicly available on registry
June 4, 2014
CompletedStudy Start
First participant enrolled
October 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 5, 2018
CompletedResults Posted
Study results publicly available
July 16, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
March 11, 2023
CompletedNovember 14, 2023
October 1, 2023
3.5 years
June 2, 2014
April 4, 2019
October 24, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
Number of Knees With Cementless Application That Had Successful Primary Total Knee Replacement With the Triathlon Tritanium Total Knee System
Success is defined as freedom from Triathlon Tritanium Tibial Baseplate revision for aseptic loosening.
2 years
Secondary Outcomes (4)
Implant Survivorship (Baseplate and Patella)
10 years
Compare 2011 Knee Society Score (KSS) Scores Between Both Groups
2 years
Compare Oxford Knee Score (OKS) Scores Between Both Groups
2 years
Compare Short Form-12 (SF-12) Scores Between Both Groups
2 years
Study Arms (2)
Triathlon Tritanium Knee
ACTIVE COMPARATORCases are enrolled in the Cohort 1 (cementless) until a total of 356 cases receive the Triathlon Tritanium Tibial Baseplate, Triathlon Tritanium Patella, Triathlon CR or PS Beaded Femur with PA and the Triathlon Tibial Insert. All components in this cohort must used in a cementless application.
Triathlon Knee
ACTIVE COMPARATOREnrollment in Cohort 2 (cemented) will begin upon completion of enrollment into the Cohort 1 (cementless), and will continue until a total of 144 cases receive the Triathlon Tibial Tray, Triathlon Patella, Triathlon CR or PS Femur and Triathlon Tibial Insert. All components in this cohort must be used in a cemented application.
Interventions
Eligibility Criteria
You may qualify if:
- Patient has signed an Institutional Review Board (IRB)/Ethics Committee (EC) approved; study specific Informed Patient Consent Form.
- Patient is a male or non-pregnant female age 18-75 years at time of study device implantation.
- Patient has a diagnosis of Non-Inflammatory Degenerative Joint Disease (NIDJD).
- Patient is a candidate for primary cementless total knee replacement, including a resurfaced patella.
- Patient is willing and able to comply with postoperative scheduled clinical and radiographic evaluations and rehabilitation.
You may not qualify if:
- Patient has a Body Mass Index (BMI) \> 40.
- Patient has a diagnosis of avascular necrosis or inflammatory arthritis.
- Patient has an active or suspected latent infection in or about the affected knee joint at time of study device implantation.
- Patient has a neuromuscular or neurosensory deficiency, which limits the ability to evaluate the safety and efficacy of the device.
- Subject is diagnosed with a systemic disease (e.g. Lupus Erythematosus) or a metabolic disorder (e.g. Paget's Disease) leading to progressive bone deterioration.
- Patient is immunologically suppressed or receiving steroids in excess of normal physiological requirements (e.g. \> 30 days).
- Patient is diagnosed with lumbar radicular pain.
- Patient has a known sensitivity to device materials.
- Patient is a prisoner.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (10)
OrthoArizona
Gilbert, Arizona, 85234, United States
Tucson Orthopaedic Institute
Tucson, Arizona, 85741, United States
Heekin Clinic
Jacksonville, Florida, 32204, United States
Imperial Health
Lake Charles, Louisiana, 70605, United States
Sinai Hospital of Baltimore
Baltimore, Maryland, 21215, United States
St. Joseph Mercy Health System
Ypsilanti, Michigan, 48197, United States
Rothman Orthopaedic Institute
Egg Harbor, New Jersey, 08234, United States
Mission Hospital Research Institute
Asheville, North Carolina, 28801, United States
Duke University Medical Center
Durham, North Carolina, 27703, United States
Geisinger Orthopaedic Institute
Danville, Pennsylvania, 17821, United States
Results Point of Contact
- Title
- Stryker JR Clinical Research
- Organization
- Stryker Orthopaedics
Study Officials
- PRINCIPAL INVESTIGATOR
Edward Petrow, DO
Tucson Orthopaedic Institute
- PRINCIPAL INVESTIGATOR
Alvin Ong, MD
Rothman Orthopaedic Institute
- PRINCIPAL INVESTIGATOR
David Heekin, MD
Heekin Clinic
- PRINCIPAL INVESTIGATOR
Kipling Sharpe, MD
OrthoArizona
- PRINCIPAL INVESTIGATOR
Marcus Barnett, MD
Mission Hospital Research Institute
- PRINCIPAL INVESTIGATOR
John Noble, MD
Imperial Health
- PRINCIPAL INVESTIGATOR
Michael Masini, MD
St. Joseph Mercy Health System
- PRINCIPAL INVESTIGATOR
Samuel Wellman, MD
Duke University
- PRINCIPAL INVESTIGATOR
Ronald Delanois, MD
Sinai Hospital of Baltimore
- PRINCIPAL INVESTIGATOR
Thomas Bowen, MD
Geisinger Orthopaedic Institute
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 2, 2014
First Posted
June 4, 2014
Study Start
October 1, 2014
Primary Completion
April 5, 2018
Study Completion
March 11, 2023
Last Updated
November 14, 2023
Results First Posted
July 16, 2019
Record last verified: 2023-10