NCT01620892

Brief Summary

The study seeks to evaluate the condition of patients 5 years after having undergone partial knee replacement for localized osteoarthritis of the knee. Participating patients will voluntarily undergo detailed evaluation of clinical and radiologic outcomes 5 years after surgery. The aims of the study are to describe the survivorship of the prostheses and the clinical results of patients, and to elucidate and describe the natural history disease of the untreated knee joint compartments after a partial replacement. Patients who were operated by the principal investigator 5 years previously will be invited to participate. The study is observational in nature; there is no element of experimentation or test of an intervention.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
159

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jun 2012

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2012

Completed
12 days until next milestone

First Submitted

Initial submission to the registry

June 13, 2012

Completed
2 days until next milestone

First Posted

Study publicly available on registry

June 15, 2012

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2015

Completed
Last Updated

January 10, 2019

Status Verified

January 1, 2019

Enrollment Period

2.8 years

First QC Date

June 13, 2012

Last Update Submit

January 8, 2019

Conditions

Keywords

unicondylar knee arthroplastypartial knee replacement

Outcome Measures

Primary Outcomes (1)

  • Time to revision of the partial total knee prosthesis

    Eligible participants are invited to enroll into this observational study after the 5-year anniversary of the index primary knee replacement procedure. The participant will be evaluated once to determine whether the original implant is in situ, or has been revised. Method of determination will include self-report of the participant, medical records review/verification, and radiographic examination of the prosthesis.

    5 to 7 years after original implantation

Study Arms (1)

Unicondylar knee replacement

This is a non-intervational, retrospective, observational study of a case series cohort of patients who received a particular surgical operation during a specified time period.

Eligibility Criteria

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

The potential study population consists of all patients who have undergone implantation of a specific unicondylar knee arthroplasty device under the care of the principal investigator between December, 2006 and December, 2008. This is a clinic-based sample of consecutive cases.

You may qualify if:

  • All individuals who have undergone unicondylar knee replacement of a single tibio-femoral compartment using iBalance prosthesis (Arthrex, Inc, Lakeland Florida) under the care of the principal investigator between December, 2006 and December, 2008 will be invited to participate in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Athens Orthopedic Clinic, P.A.

Athens, Georgia, 30606, United States

Location

MeSH Terms

Conditions

Osteoarthritis, Knee

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Officials

  • Ormonde M Mahoney, MD

    Athens Orthopedic Clinic, P.A.

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator, Orthopedic Surgeon

Study Record Dates

First Submitted

June 13, 2012

First Posted

June 15, 2012

Study Start

June 1, 2012

Primary Completion

April 1, 2015

Study Completion

April 1, 2015

Last Updated

January 10, 2019

Record last verified: 2019-01

Locations