Comparison of Transphyseal Screws and Eight Plates in Hemiepiphysiodesis for Coronal Knee Deformities: Short-Term Results

April 21, 2026 updated by: Hossam Hosny Omar, Sohag University

Management of Coronal Deformities Around the Knee With Hemiepiphysiodesis Using Transphyseal Screws Versus Eight Plates , Short Term Results

Coronal angular deformities of the lower limbs, such as bow legs and knock-knees, are frequently observed in childhood. While many cases are considered normal and resolve on their own, when these deformities become significant and progressive, they can disrupt the quality of life, leading to gait disturbances, pain, and in severe instances, joint instability. Additionally, these deformities may have indirect effects on other joints like the hip and ankle, and most importantly, they increase the risk of early osteoarthritis in the knee .

It is generally accepted that a significant deformity that persists up to preadolescence will not correct spontaneously. Physiological alignment of the lower limb is crucial for the symmetrical distribution of weight over the surfaces of the joints, especially the knee. Indeed, severe coronal malalignment has been linked to knee pain, altered gait, and occasionally patellofemoral problems .

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

60

Phase

  • Not Applicable

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

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

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Both gender (males and females)
  2. Children ≥3 years old and growing children 2 years at least remaining in growth ( skeletal immature)
  3. Cases with progressive knee deformities around knee at any side.

Exclusion Criteria:

  • 1. Physeal closure.

    2. Physiological deformity in younger ages that could be managed conservatively ( age < 3 years )

    3. Cases with metabolic or chronic illness conditions unresolved.

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Go for transphyseal screws
Procedure: hemiepiphysiodesis
Hemiepiphysiodesis is a safe, effective, and minimally invasive method for correcting angular deformities in growing children. The two main techniques-transphyseal screw and eight-plate-both rely on guided growth principles but differ in mechanics, control, and risk profile. Careful patient selection, timing, and follow-up are key to achieving optimal results.
Active Comparator: Go for eight plates
Procedure: hemiepiphysiodesis
Hemiepiphysiodesis is a safe, effective, and minimally invasive method for correcting angular deformities in growing children. The two main techniques-transphyseal screw and eight-plate-both rely on guided growth principles but differ in mechanics, control, and risk profile. Careful patient selection, timing, and follow-up are key to achieving optimal results.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
correction of deformity
Time Frame: 6 months after surgery
6 months after surgery

Collaborators and Investigators

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

Sponsor

Sohag 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 (Estimated)

May 1, 2026

Primary Completion (Estimated)

September 1, 2026

Study Completion (Estimated)

April 1, 2027

Study Registration Dates

First Submitted

April 15, 2026

First Submitted That Met QC Criteria

April 21, 2026

First Posted (Actual)

April 23, 2026

Study Record Updates

Last Update Posted (Actual)

April 23, 2026

Last Update Submitted That Met QC Criteria

April 21, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • Soh-Med-26-3-3MS

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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