Change of Knee Phenotype After Total Hip Arthroplasty (THA-KP)

May 16, 2026 updated by: Nader Ahmed Sayed Abdelhamed

Evaluation of Knee Phenotype Following Total Hip Arthroplasty :A Prospective Cohort Study

this study evaluates changes in knee phenotype after total hip arthroplasty using radiographic assessment of coronal alignment in a prospective cohort of patients

Study Overview

Status

Recruiting

Conditions

Detailed Description

this prospective cohort study evaluates the effect of total hip arthroplasty on knee phenotype using pre and post operative full-length radiographic assessment coronal alignment parameters will be measured to assess changes in knee biomechanics following THA

Study Type

Observational

Enrollment (Estimated)

500

Contacts and Locations

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

Study Contact

Study Locations

  • Egypt
    • Asyut Governorate
      • Asyut, Asyut Governorate, Egypt, 71515
        • Recruiting
        • Department of orthopedic surgery faculty of medicine assiut university
        • Contact:

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

Yes

Sampling Method

Non-Probability Sample

Study Population

the study population will include any patient undergoing primary unilateral total hip arthroplasty for hip joint pathology .patient will be recruited consecutively from the orthopedic surgery department . all eligible patients will be assessed preoperatively and followed postoperatively with full length lower limb radiographs to evaluate changes in knee phenotype and coronal alignment

Description

Inclusion Criteria:

  • patients scheduled for primary unilateral total hip arthroplasty
  • patient with hip joint pathology indicated for THA ( osteoarthritis )
  • ability to provide informed consent
  • availability for pre and post- operative radiographic follow-up

Exclusion Criteria:

  • refusal to participate or withdraw consent
  • incomplete radiographic data or loss to follow up
  • previous surgery on the ipsilateral hip or knee
  • patients with neuromuscular disorders affecting alignment

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
knee phenotype change following total hip arthroplasty
Time Frame: Immediately postoperatively"
knee phenotype change will be assessed using full-length radiographs by comparing coronal alignment parameters before and after total hip arthroplasty
Immediately postoperatively"

Collaborators and Investigators

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

Sponsor

Nader Ahmed Sayed Abdelhamed

Investigators

  • Principal Investigator: mohamed kamal abdelnasser, MD professor orthopedic, faculty of medicine assiut univerisity
  • Principal Investigator: mohamed anter ali, MD Doctor orthopedic surgery, Assiut University

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 (Actual)

February 1, 2026

Primary Completion (Estimated)

February 1, 2028

Study Completion (Estimated)

August 1, 2028

Study Registration Dates

First Submitted

April 10, 2026

First Submitted That Met QC Criteria

May 16, 2026

First Posted (Actual)

May 19, 2026

Study Record Updates

Last Update Posted (Actual)

May 19, 2026

Last Update Submitted That Met QC Criteria

May 16, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • THA-Knee-phenotype-2026

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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