NCT01340144

Brief Summary

Analyze clinical data for a group of subjects implanted with a new surgical device designed to reduce the incidence of patellar crepitus following PCL-substituting TKA and compare that to a control group of subjects implanted with a TKA design known to have an incidence of patellar crepitus of approximately 5%.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
1,250

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Apr 2011

Typical duration for all trials

Status
completed

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

April 1, 2011

Completed
19 days until next milestone

First Submitted

Initial submission to the registry

April 20, 2011

Completed
2 days until next milestone

First Posted

Study publicly available on registry

April 22, 2011

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2014

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2014

Completed
6 months until next milestone

Results Posted

Study results publicly available

March 5, 2015

Completed
Last Updated

March 25, 2015

Status Verified

March 1, 2015

Enrollment Period

3.2 years

First QC Date

April 20, 2011

Results QC Date

February 19, 2015

Last Update Submit

March 4, 2015

Conditions

Keywords

total knee replacementpatellar crepitusReplacement of knee joint

Outcome Measures

Primary Outcomes (1)

  • Evaluate for the Incidence of Patellar Crepitus Requiring Non-operative vs. Operative Treatment of Both the Study and Control Groups at a Minimum of 12 Months Following the TKA (Total Knee Arthroplasty) Procedure in Each Subject.

    The incidence of patellar crepitus and clunk will be statistically compared between the study (PFC Sigma HP PS TKA) and control (PFC Sigma PS TKA groups). Based on a strength analysis to determine a theoretical reduction in the incidence of patellar crepitus from 5% to 2%, a study group of 625 subjects in both the control and study ggroups will be required. Each group will also be statistically analyzed using the following variables: overall crepitus incidence, incidence of crepitus requiring only non-operative treatment vs. those requiring operative treatment to manage this complication.

    Two years after TKA (Total Knee Arthroplasty) procedure

Study Arms (2)

PFC Sigma PS TKA

one group received primary TKA using the PFC Sigma PS TKA

PFC Sigma HP PS TKA

One group received primary TKA using the PFC Sigma HP PS TKA.

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Colorado Joint replacement clinic

You may qualify if:

  • subjects that received primary total knee replacement

You may not qualify if:

  • Did not return for follow - up appointments Required any post operative manipulation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Results Point of Contact

Title
Raymond Kim, MD
Organization
Colorado Joint Replacement

Study Officials

  • Raymond Kim, MD

    Porter Adventist Hospital

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 20, 2011

First Posted

April 22, 2011

Study Start

April 1, 2011

Primary Completion

June 1, 2014

Study Completion

September 1, 2014

Last Updated

March 25, 2015

Results First Posted

March 5, 2015

Record last verified: 2015-03