Knee Posterior Femoral Condylar Offset and Tibial Slope of the Egyptian Population (knee)

August 4, 2018 updated by: MBMady, Assiut University
this study is to compare the posterior condylar offset , posterior condylar offset ratio and tibial slope of Egyptian population with Asian and Western results.These results may be important to examine if contemporary total knee arthroplasty components match the anatomy of Egyptian populations or they are significantly different with the need of different prosthesis designs and geometrics.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Lateral knee x rays will be collected from the registry system of Assiut University Hospital through Paxera pacs system . Posterior condylar offset, posterior condylar offset ratio and tibial slope will be measured from the x rays.

In the sagittal plane, the femoral long axis will be drawn with equal distance to the anterior-posterior edges of the femoral shaft. One line will be drawn parallel to the anterior femoral shaft cortex and another parallel to the posterior femoral shaft cortex. A third line will be drawn parallel to the posterior femoral shaft cortex line, but tangent to the most posterior femoral condyles to represent the posterior condylar tangent line. The anterior-posterior dimension of the distal femur is defined as the distance between the anterior femoral shaft cortex line and the posterior femoral condyle tangent line . The posterior femoral condyle offset (PCO) is determined as the distance between the posterior femoral shaft cortex line and the posterior femoral condyle line, that is noted as PCO .The posterior femoral condyle offset ratio (PCOR) is calculated as the ratio of the posterior femoral condyle offset and the anterior-posterior dimension of the distal femur, i.e., PCO/ACP.

Tibial slope will be measured as follows; the tangent to the medial tibial plateau is considered to be the proximal reference line. This is the line connecting the highest anterior and posterior points of the medial plateau. The second reference is the axis of the tibia, defined as a line through the middle of the shaft at 10 and 20 cm. The angle between these two lines is the tibial slope.

Data of the cases will be collected as name, age and gender. The results will be collected and will be compared with those of Asian and Western results. These results may be important to examine if contemporary TKA components match the anatomy of Egyptian populations or they are significantly different with the need of different prosthesis designs and geometrics.

Study Type

Observational

Enrollment (Anticipated)

300

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

all adult cases who have proper lateral knee x ray on the registery system of Assiut University Hospital , will be collected. These x rays will be used in this study as posterior condylar offset, posterior condylar offset ratio and tibial slope will be measured on these x rays

Description

Inclusion Criteria:

  • Proper lateral knee x ray of adult cases

Exclusion Criteria:

  • 1. Improper x ray projection
  • 2. Retained hardware
  • 3. Malunited distal or upper tibia fracture

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

  • Observational Models: Ecologic or Community
  • Time Perspectives: Retrospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Measure posterior condylar offset in the Egyptian population
Time Frame: one year
posterior condylar offset will be measured in a sample of the egyptian people to get the mean measure of posterior condylar offset in the egyptian people
one year

Collaborators and Investigators

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

Sponsor

Assiut 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)

September 1, 2018

Primary Completion (Anticipated)

September 1, 2019

Study Completion (Anticipated)

December 1, 2019

Study Registration Dates

First Submitted

July 28, 2018

First Submitted That Met QC Criteria

August 4, 2018

First Posted (Actual)

August 9, 2018

Study Record Updates

Last Update Posted (Actual)

August 9, 2018

Last Update Submitted That Met QC Criteria

August 4, 2018

Last Verified

August 1, 2018

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • knee measures

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

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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