NCT00808613

Brief Summary

The purpose of this study is to evaluate the differences in clinical outcomes between the Optetrak® Posterior Stabilized ("Optetrak® PS", Exactech, Gainesville, FL) and the Optetrak® Hi-Flex™ ("Optetrak® HF", Exactech, Gainesville, FL) knee designs.

Trial Health

30
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started Dec 2008

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
withdrawn

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

Study Start

First participant enrolled

December 1, 2008

Completed
14 days until next milestone

First Submitted

Initial submission to the registry

December 15, 2008

Completed
1 day until next milestone

First Posted

Study publicly available on registry

December 16, 2008

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2012

Completed
Last Updated

September 1, 2022

Status Verified

August 1, 2022

Enrollment Period

3.1 years

First QC Date

December 15, 2008

Last Update Submit

August 29, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • The primary outcome of interest is knee range of motion (ROM), specifically the degree of flexion.

    Physician assess range of motion in knee joint

    2 years

Secondary Outcomes (6)

  • Knee Society Score (KSS)

    2 years

  • Hospital for Special Surgery (HSS) Knee Score

    2 years

  • Patient Satisfaction

    2 years

  • Implant survivorship

    2 years

  • Radiographic evaluation

    2 years

  • +1 more secondary outcomes

Study Arms (2)

Optetrak Posterior Stabilized TKR

ACTIVE COMPARATOR

Subjects in this arm will receive an Optetrak Posterior Stabilized total knee system.

Device: Optetrak PS

Optetrak Hi-Flex TKR

ACTIVE COMPARATOR

Subjects in this arm will receive an Optetrak Hi-Flex total knee system.

Device: Optetrak Hi-Flex

Interventions

Optetrak Posterior Stabilized total knee replacement

Optetrak Posterior Stabilized TKR

Optetrak Hi-Flex total knee replacement

Optetrak Hi-Flex TKR

Eligibility Criteria

Age50 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patient is indicated for total knee replacement with a posterior stabilized device.
  • Patient is between the ages of 50 and 80 years old
  • Patient has a Body Mass Index (BMI) \< 35.0 using the following method (or comparable method)
  • BMI = Weight (lbs.) ÷ Height (in.)2 x 703
  • Patient is skeletally mature.
  • Patient is willing to participate by complying with pre and postoperative visit requirements, over at least a 1-year period, including completion of studyrequired questionnaires.
  • Patient is willing and able to review and sign a study Informed Consent.

You may not qualify if:

  • Patient has a Body Mass Index (BMI) \> 35.0 using the following method (or comparable method)
  • BMI = Weight (lbs.) ÷ Height (in.)2 x 703
  • Patient is skeletally mature
  • Patient is willing to participate by complying with pre and postoperative visit requirements, over at least a 1-year period, including completion of study required questionnaires.
  • Patient is willing and able to review and sign a study Informed Consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hampton Roads Orthopedics

Newport News, Virginia, 23606, United States

Location

Study Officials

  • Jason Drenning, Ph.D.

    Exactech

    STUDY DIRECTOR
  • John W. Aldridge, MD

    Hampton Roads Orthopedics

    PRINCIPAL INVESTIGATOR
0

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

December 15, 2008

First Posted

December 16, 2008

Study Start

December 1, 2008

Primary Completion

January 1, 2012

Study Completion

January 1, 2012

Last Updated

September 1, 2022

Record last verified: 2022-08

Locations