NCT01462240

Brief Summary

This is a prospective multicenter study of the LPS-Flex Porous Femoral Components when used in primary total knee arthroplasty. The purpose of the study is to obtain short-, mid-, and long-term clinical outcomes and implant survivorship data for the NexGen LPS-Flex Porous Femoral components.

Trial Health

15
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started May 2008

Typical duration for all trials

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withdrawn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

May 20, 2008

Completed
3.4 years until next milestone

First Submitted

Initial submission to the registry

October 24, 2011

Completed
7 days until next milestone

First Posted

Study publicly available on registry

October 31, 2011

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2012

Completed
Last Updated

August 24, 2021

Status Verified

August 1, 2021

Enrollment Period

3.8 years

First QC Date

October 24, 2011

Last Update Submit

August 20, 2021

Conditions

Keywords

arthritis

Outcome Measures

Primary Outcomes (1)

  • Survivorship

    Based on frequency of adverse events, serious adverse events, adverse device effects, serious adverse device effects and unanticipated adverse device effects or removal of the device summarized using a Kaplan-Meier method and presented with rates (as percentages) and confidence intervals.

    10 Years

Secondary Outcomes (1)

  • Pain and Functional Performance

    10 years

Study Arms (1)

1 - LPS Flex Pororus Femoral Components

Patients suffering from severe knee pain and disability.

Device: LPS Flex Porous Femoral Components

Interventions

Porous femoral components in total knee arthroplasty

1 - LPS Flex Pororus Femoral Components

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Each investigator will screen from this patient populatin patients suffering from severe knee pain and disability who meet the inclusion/exclusion criteria for study participation.

You may qualify if:

  • Patient 18-75 years of age, inclusive;
  • Patient qualifies for a total knee arthroplasty based on physical exam and medical history including at least one of the following: rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis, collagen disorders, avascular necrosis of the femoral condyle;
  • Post-Traumatic loss of joint configuration, particularly when there is patellofemoral erosion, dysfunction or prior patellectomy;
  • Moderate valgus, varus, or flexion deformities;
  • Patient has undergone a study related informed consent process;
  • Patient is willing and able to provide written consent;
  • Patient is willing and able to cooperate in the required post-operative therapy;
  • Patient is willing and able to complete scheduled follow-up evaluations.

You may not qualify if:

  • Patient has previous history of infection in the affected joint and/or a local or systemic infection that could affect the prosthetic joint;
  • Insufficient bone stock on femoral or tibial surfaces;
  • Skeletal immaturity;
  • Neuropathic arthropathy;
  • Osteoporosis or any loss of musculature or neuromuscular disease that compromises the affected limb;
  • Stable, painless arthrodesis in a satisfactory functional position;
  • Severe instability secondary to the absence of collateral ligament integrity;
  • Patient has rheumatoid arthritis and an ulcer of the skin or a history of recurrent breakdown of the skin because of their risk of postoperative infection is greater;
  • Patient has a known sensitivity or allergy to one or more of the implanted materials;
  • Patient is pregnant or considered a member of a protected population (e.g., prisoner, mental incompetence, unable to understand what clinical trial participation entails, etc.)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

OsteoarthritisArthritis, RheumatoidCollagen DiseasesArthritis

Condition Hierarchy (Ancestors)

Joint DiseasesMusculoskeletal DiseasesRheumatic DiseasesConnective Tissue DiseasesSkin and Connective Tissue DiseasesAutoimmune DiseasesImmune System Diseases

Study Officials

  • Kacy Arnold, RN, MBA

    Zimmer Biomet

    STUDY DIRECTOR
0

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
RETROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 24, 2011

First Posted

October 31, 2011

Study Start

May 20, 2008

Primary Completion

March 1, 2012

Study Completion

March 1, 2012

Last Updated

August 24, 2021

Record last verified: 2021-08

Data Sharing

IPD Sharing
Will not share