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Knee surgery may change ankle pain – small study investigates

NCT ID NCT05183750

Knowledge-focused Sponsor: Sohag University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study looked at 20 people with knee arthritis who had a surgery called high tibial osteotomy (HTO) to realign their knee. The goal was to see how the surgery changed ankle pain and ankle joint alignment. Researchers measured pain and bone angles before and after surgery. The study is complete, but because it is small and observational, it only helps us understand possible links, not prove a treatment works.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
high tibial osteotomy (surgical procedure)
What this could lead to
If successful, this could help doctors understand how knee surgery affects the ankle, potentially improving surgical planning and reducing ankle pain after knee realignment.
What could go wrong
This is a very small, completed study with only 20 participants. It does not test a new treatment, so results may not apply to everyone and cannot confirm any benefits.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

20 people

The number who actually took part.

Started

Dec 2021

Finished

Sep 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 55 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Symptomatic medial unicompartment knee arthritis * Active patients younger than 55 years * Good range of motion (ROM) . * Intact lateral compartment Exclusion Criteria: * Combined medial and lateral arthrosis. * Markedly decreased knee range of motion (arc of motion 10°). * Ligamentous instability. * Severe joint destruction (≥Ahlback grade III). * ≥55 years of age. * Advanced patellofemoral arthritis. * Rheumatoid arthritis. * Structural lower extremity deformities. * Previous operation at knee joint.

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Conditions

The condition(s) this trial relates to.

osteoarthritis, knee

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Investigate the change in the weight-bearing-line (WBL) ratio of the ankle joint and ankle joint line orientation after hto

Contacts and locations

Locations

  • Sohag univeristy- Faculty of medicine

    Sohag, 82511, Egypt

More trials for these conditions

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