NCT02155712

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

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
680

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2014

Longer than P75 for not_applicable

Geographic Reach
1 country

10 active sites

Status
terminated

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

Completed
2 days until next milestone

First Posted

Study publicly available on registry

June 4, 2014

Completed
4 months until next milestone

Study Start

First participant enrolled

October 1, 2014

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 5, 2018

Completed
1.3 years until next milestone

Results Posted

Study results publicly available

July 16, 2019

Completed
3.7 years until next milestone

Study Completion

Last participant's last visit for all outcomes

March 11, 2023

Completed
Last Updated

November 14, 2023

Status Verified

October 1, 2023

Enrollment Period

3.5 years

First QC Date

June 2, 2014

Results QC Date

April 4, 2019

Last Update Submit

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 COMPARATOR

Cases 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.

Device: Triathlon Tritanium Knee

Triathlon Knee

ACTIVE COMPARATOR

Enrollment 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.

Device: Triathlon Knee

Interventions

Cementless

Triathlon Tritanium Knee

Cemented

Triathlon Knee

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

Location

Tucson Orthopaedic Institute

Tucson, Arizona, 85741, United States

Location

Heekin Clinic

Jacksonville, Florida, 32204, United States

Location

Imperial Health

Lake Charles, Louisiana, 70605, United States

Location

Sinai Hospital of Baltimore

Baltimore, Maryland, 21215, United States

Location

St. Joseph Mercy Health System

Ypsilanti, Michigan, 48197, United States

Location

Rothman Orthopaedic Institute

Egg Harbor, New Jersey, 08234, United States

Location

Mission Hospital Research Institute

Asheville, North Carolina, 28801, United States

Location

Duke University Medical Center

Durham, North Carolina, 27703, United States

Location

Geisinger Orthopaedic Institute

Danville, Pennsylvania, 17821, United States

Location

Results Point of Contact

Title
Stryker JR Clinical Research
Organization
Stryker Orthopaedics

Study Officials

  • 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

    PRINCIPAL INVESTIGATOR

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

Locations