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New measuring arm aims to prevent leg length discrepancy after hip replacement

NCT ID NCT07595510

Knowledge-focused Sponsor: Lodz University of Technology 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Updated 1 time

Summary

This study tested a device called NaviFast 6D, a miniature measuring arm used during hip replacement surgery to help surgeons check leg length and hip offset. Researchers compared measurements from the device to standard X-ray measurements in 84 adults undergoing hip replacement. The goal was to see if the device could reduce differences in leg length after surgery compared to usual care.

What this could mean

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

Active substance
NaviFast 6D Measuring Arm (device)
What this could lead to
If successful, this device could help surgeons better match leg lengths during hip replacement, potentially reducing post-surgery leg length differences.
What could go wrong
This was a small, completed study focused on measurement accuracy, not long-term outcomes. The device may not improve patient satisfaction or function.

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

84 people

The number who actually took part.

Started

May 2023

Finished

Aug 2024

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

20 to 85 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: * Patients scheduled for primary total hip arthroplasty. * Male or female patients. * Age 20 to 85 years. * No previous surgical procedures in the affected hip joint. * Ability and willingness to provide informed consent for participation in the clinical investigation. Exclusion Criteria: * Lack of informed consent to participate in the clinical investigation. * Pregnancy. * Femoral neck fracture. * Pertrochanteric femoral fracture. * Pseudarthrosis of the femoral neck. * Traumatic or post-traumatic changes of the proximal femur or acetabular region. * Bone neoplasm. * Bone infection. * Advanced osteoporosis.

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Conditions

The condition(s) this trial relates to.

Leg Length Inequality osteoarthritis, hip

As listed by the trial registrant

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

Hip osteoarthritis Total hip arthroplasty (THA)

Contacts and locations

Locations

  • Military Clinical Hospital in Lublin

    Lublin, Lublin Voivodeship, Poland

  • Pabianice Medical Center

    Pabianice, Łódź Voivodeship, Poland

  • University Orthopaedic and Rehabilitation Hospital

    Zakopane, Poland

  • Wojewódzki Szpital Zespolony im. L. Perzyny

    Kalisz, Greater Poland Voivodeship, Poland

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