MPTA on Full Standing and Rosenberg Views in Patients Undergoing High Tibial Osteotomy

March 21, 2026 updated by: Ahmed Gad Elkariem Farrag, Assiut University

Comparing Medial Proximal Tibial Angle Measurements on Full-leg Standing Radiographs and The Rosenberg View in Patients Undergoing High Tibial Osteotomy

-Comparison of MPTA on both Full-leg Standing and Rosenberg Radiographs .

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

The medial open wedge high tibial osteotomy (MOW-HTO) is awidely and successfully performed treatment for medial compartment osteoarthritis (OA) of the knee joint .

The primary goal of MOW-HTO is to alleviate mechanical stress onthe medial compartment of the knee joint by shifting the weight-bearing line (WBL) toward the lateral compartment .

Correct alignment is essential for achieving long-term success and favorable outcomes, making accurate preoperative planning crucial.

Accepted gold standard for preoperative coronal plane assessment of lower limb alignment are full-leg standing radiographs (FLSR) .

Measurement variables in the coronal plane include the mechanical lateral proximal femoral angle (mLPFA), mechanical lateral distal femoral angle (mLDFA), mechanical medial proximal tibial angle and mechanical lateral distal tibial angle.

However, alignment measurements are influenced by factors such as knee flexion, rotation, and loading conditions .

Identifying these factors prior to surgery is crucial to minimizing the risk of surgical error.

Posteroanterior weight-bearing radiographs taken with the knee in 45 degrees of flexion, commonly referred to as the Rosenberg view (RB), are routinely used preoperatively . This imaging technique not only facilitates the assessment of the severity of knee OA but also aids in evaluating the degree of soft tissue laxity contributing to varus alignment-a factor increasingly recognized for its clinical significance .

For knowledge, one study has investigated how knee alignment parameters used for planning of HTO differ when measured using the RB .

The invistegator hypothesize that the medial proximal tibial angle (MPTA) does not differ when measured on RB radiographs compared with FLSR. Being a widely accessible and commonly used imaging technique, if confirmed, this finding would suggest that the RB could serve as a com-plementary modality for preoperative planning for MOW-HTO.

Study Type

Observational

Enrollment (Estimated)

49

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

  • Name: Ahmed Gadelkarem Farrag, Resident Doctor
  • Phone Number: +20 01009372187
  • Email: agad6126@gmail.com

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

N/A

Sampling Method

Non-Probability Sample

Study Population

Outpatient clinics and inpatient ward of Orthopedics & Trauma Surgery Department , Asyut University Hospitals , Faculty of Medicine

Description

Inclusion Criteria:

  • All patients were screened for medial compartment OA of either the left or right knee joint.
  • Availability of preoperative full-length standing radiograph and Rosenberg view.
  • Completeness of patient records .
  • Patient consent

Exclusion Criteria:

  • Insufficient patient records .
  • Previous ligamentous surgery or osteotomies .
  • Known neuromuscular or metabolic disorder .
  • Absence of a radiographic reference ball.

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
Time Frame
Difference in medial proximal tibial angle (MPTA) measurments in both the Rosenberg view and full-leg standing radiographic position
Time Frame: Baseline
Baseline

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 (Estimated)

October 1, 2026

Primary Completion (Estimated)

August 1, 2028

Study Completion (Estimated)

October 1, 2028

Study Registration Dates

First Submitted

March 17, 2026

First Submitted That Met QC Criteria

March 21, 2026

First Posted (Actual)

March 25, 2026

Study Record Updates

Last Update Posted (Actual)

March 25, 2026

Last Update Submitted That Met QC Criteria

March 21, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Comparison of MPTA in two view

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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