Simple shoe wedge may fix stiff knees after replacement

NCT ID NCT07620145

Completed Symptom relief Sponsor: University of North Carolina, Charlotte Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This pilot study tested a simple shoe wedge worn under the toes to help people straighten their knee after total knee replacement. Eight adults with a stiff knee (unable to fully straighten it) wore the wedge during walking for 4 weeks. The goal was to see if the wedge could reduce the knee stiffness without needing more surgery or anesthesia. This early study aims to guide future, larger research.

What this could mean

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

Active substance: anterior heel wedge (a shoe attachment worn under the toes)
What this could lead to: If it works, this could offer a simple, non-surgical way to improve knee straightening after knee replacement, avoiding additional surgery or anesthesia.
What could go wrong: This is a very small pilot study with only 8 participants and no comparison group. The device may not work for everyone, and results may not apply to a broader population.

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

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As listed by the trial registrant

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

KNEE FLEXION CONTRACTURE TOTAL KNEE ARTHROPLASTY (TKA)

Contacts and locations

Locations

UNC Charlotte

Charlotte, North Carolina, 28269, United States

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