NCT01469806

Brief Summary

The primary objective of the Registry is to allow for tracking of FDA approved and/or cleared knees used in primary, revision, unicompartmental or partial total knee arthroplasty (TKA). Second, it is our desire to assist orthopaedic surgeons in obtaining and evaluating radiographic and functional outcomes data on their PFJ patients using current published guidelines. Third, within this Registry, subsets of data on newer technology are being collected for the purpose of future publications. The Patello-Femoral Joint Post Market Clinical (PFJ PMCF) study is one such subset.

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 Nov 2011

Longer than P75 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withdrawn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

First Submitted

Initial submission to the registry

October 24, 2011

Completed
8 days until next milestone

Study Start

First participant enrolled

November 1, 2011

Completed
9 days until next milestone

First Posted

Study publicly available on registry

November 10, 2011

Completed
11.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2023

Completed
Last Updated

September 27, 2016

Status Verified

March 1, 2012

Enrollment Period

11.9 years

First QC Date

October 24, 2011

Last Update Submit

September 26, 2016

Conditions

Outcome Measures

Primary Outcomes (1)

  • Long-term Device survivorship for publication

    10 Years

Secondary Outcomes (1)

  • Radiographic analysis of enrolled subjects

    10 years

Study Arms (1)

1 - PFJ

Patients who require primary partial knee arthroplasty of the patello-femoral joint.

Device: Zimmer Gender Solutions PFJ Knee Prosthesis

Interventions

Partial knee arthroplasty of the patello-femoral joint

1 - PFJ

Eligibility Criteria

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

Patient has patellofemoral joint(s) affected by disease process and /or injury and qualifying for primary unilateral or bilateral replacement of the femoral trochlea based a primary diagnosis

You may qualify if:

  • Patient is greater than 18 years of age;
  • Patient selection is without bias to race or gender;
  • Patient is in stable health and able to undergo surgery;
  • Patient has patellofemoral joint(s) affected by disease process and/or injury and qualifying for primary unilateral or bilateral replacement of the femoral trochlea based a primary diagnosis of at least one of the following:
  • Osteoarthritis
  • Traumatic Arthritis
  • Polyarthritis
  • Severe Chondrocalcinosis
  • Salvage of previously failed surgical attempts (e.g., arthroscopy, lateral release, cartilage transplantation)
  • History of patellar dislocation or patella fracture
  • Dysplasia-induced patellofemoral degeneration
  • Patient is willing and able to cooperate in prescribed post-operative therapy;
  • Patient is willing and able to complete scheduled follow-up evaluations as described in the Informed Consent;
  • Patient has participated in the Informed Consent process and has signed an IRB approved Informed Consent.
  • Patient has not history of previous prosthetic replacement device(s) of any type in the affected knee joint;
  • +1 more criteria

You may not qualify if:

  • Patient with an acute, chronic, local or systemic infection;
  • Patient is skeletally immature;
  • Patient is pregnant;
  • Patient is a prisoner, mentally incompetent or anticipated to be non-compliant. Patient has a known allergy to one of the constituents of the implant, e.g. cobalt, chromium, nickel, etc.;
  • Patient has Rheumatoid Arthritis (RA) AND an ulcer of the skin OR a history of recurrent breakdown of the skin;
  • Patient has neuropathic arthropathy, neuromuscular disorder, neurologic condition, vascular disorder, systemic disease and/or other condition that affects lower limb function and/or could contribute to prosthesis instability, prosthesis fixation failure, and/or complications in postoperative care;
  • Patient has a Body Mass Index (BMI) greater than 40;
  • Patient has insufficient native bone stock in the operative joint (e.g. osteoporosis, osteonecrosis, tumors, cysts, etc.). Note: Bone void fillers are NOT considered native bone stock, even if autograft is used;
  • Patient has severe instability, maltracking, or malalignment of the patella, patellofemoral, and/or tibiofemoral joints;
  • Patient has patellectomy of the affected joint, including previous patellectomy, patellectomy performed simultaneous to study PFA, or scheduled patellectomy;
  • Patient has insufficient menisci and/or ligament structures (e.g. non-functional/absent ACL and/or PCL);
  • Patient exhibits tibiofemoral degeneration and/or Outerbridge grade greater than or equal to 3 in EITHER:
  • one (medial or lateral) tibiofemoral compartment that is not treated with a simultaneous compatible Zimmer unicompartmental knee replacement; OR
  • both (medial AND lateral) tibiofemoral compartments, regardless of treatment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Arthritis

Condition Hierarchy (Ancestors)

Joint DiseasesMusculoskeletal Diseases
0

Study Design

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

Study Record Dates

First Submitted

October 24, 2011

First Posted

November 10, 2011

Study Start

November 1, 2011

Primary Completion

October 1, 2023

Study Completion

October 1, 2023

Last Updated

September 27, 2016

Record last verified: 2012-03

Data Sharing

IPD Sharing
Will not share