Association Between Sagittal Patellar Offset and Anterior Knee Pain in Total Knee Arthroplasty

April 18, 2020 updated by: Orkhan Aliyev, Bezmialem Vakif University

Association Between Sagittal Patellar Offset and Anterior Knee Pain After Multiradius Total Knee Replacement.

The aim of this study to evaluate whether the position of the sagittal patellar offset is a predictive factor for anterior knee pain in subjects having undergone bilateral multiradius total knee replacement.

Study Overview

Status

Not yet recruiting

Conditions

Detailed Description

A prospective, observational study. A total of to 80 subjects requiring bilateral multiradius knee arthroplasty will be enrolled. Anterior femoral offset, femoral diameter and patellar offset will be measured by orthopaedic surgeons. In addition, Visual Analogue Scale Score, Oxford Knee Score, WOMAC, SF12 and SF36 will be evaluated postoperative in patients long-term follow up to see if there is a relationship between anterior femoral offset and anterior knee pain.In the direct lateral knee joint radiograph, the distance between the two parallel axis extending from both cortices of the femur is measured as "femoral diameter".The remaining length between the anterior axis and the maximum peak at the anterior of the prosthesis is considered as an "anterior femoral offset"[1]. Sagittal patellar offset defined by us as the ratio of the anterior femoral offset to the remaining distance between the maximum anterior point of the patella and the posterior vertex in the direct lateral knee joint radiography.

Study Type

Observational

Enrollment (Anticipated)

80

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years to 100 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Patients undergoing total knee arthroplasty due to severe gonarthrosis

Description

Inclusion Criteria:

  • Patients over 50 years of age with primary severe gonarthrosis who will undergo total knee replacement

Exclusion Criteria:

  • Patients with severe gonarthrosis, with a history of malignancy, with severe extraarticular deformity, with posttraumatic and septic arthritis sequel

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
anterior patellar offset ratio
Time Frame: minimum 1 year
The distance between the anterior cortex of the femur and the maximum peak at the anterior of the prosthesis is considered as an "anterior femoral offset"[1].Sagittal patellar offset defined by us as the ratio of the anterior femoral offset to the remaining distance between the maximum anterior point of the patella and the posterior vertex in the direct lateral knee joint radiography.
minimum 1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Bezmialem Vakif University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

April 23, 2020

Primary Completion (Anticipated)

April 23, 2025

Study Completion (Anticipated)

July 23, 2025

Study Registration Dates

First Submitted

April 16, 2020

First Submitted That Met QC Criteria

April 16, 2020

First Posted (Actual)

April 20, 2020

Study Record Updates

Last Update Posted (Actual)

April 21, 2020

Last Update Submitted That Met QC Criteria

April 18, 2020

Last Verified

April 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 19590

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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