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Knee replacement showdown: which implant helps you recover faster?

NCT ID NCT07595861

Knowledge-focused Sponsor: Ondokuz Mayıs 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at 40 people who had knee replacement surgery to see if the type of implant affects recovery. One group got a cruciate-retaining implant, the other a posterior-stabilized implant. Researchers measured pain, function, fear of movement, quality of life, and how much patients 'forgot' about their new knee at 3 and 6 months after surgery. The goal is to help doctors choose the best implant for each patient.

What this could mean

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

Active substance
knee replacement surgery (cruciate-retaining or posterior-stabilized implant)
What this could lead to
If successful, this study could help surgeons choose the best implant type for faster recovery and better long-term function after knee replacement.
What could go wrong
This is a small, completed observational study with only 40 participants. Results may not apply to all patients, and the study does not test a new drug or treatment.

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.

Participants

40 people

The number who actually took part.

Started

Apr 2025

Finished

Jul 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.

Who is studied

The study population consisted of patients aged between 50 years and 65 years who were scheduled to undergo primary unilateral total knee arthroplasty at a single orthopedic center. All participants were Turkish-speaking, fully oriented, and capable of completing patient-reported outcome measures. The cohort included individuals who received surgery under standardized perioperative and postoperative care protocols. Patients with revision arthroplasty, neurological or neuromuscular disorders affecting gait, cognitive impairment, psychiatric disease, or major perioperative complications were not included in the study population.

Ages

50 to 65 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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 unilateral total knee arthroplasty (TKA). * Ability to read and understand Turkish. * Full orientation in person, place, and time. * Voluntary participation with informed consent. * Surgery performed at the same institution under standardized perioperative and postoperative care protocols. Exclusion Criteria: * Revision total knee arthroplasty. * Presence of neuromuscular or neurological disorders affecting gait (e.g., stroke, Parkinson disease, myopathies). * Cognitive impairment or diagnosed psychiatric disorders that may interfere with questionnaire completion or participation. * Perioperative complications such as excessive bleeding, infection, prosthesis dislocation, or deep venous thrombosis.

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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.

Cruciate ligament reconstruction Patient reported outcome measurements Total knee anthroplasty

Contacts and locations

Locations

  • Ondokuz Mayis University

    Samsun, Atakum, 55270, Turkey (Türkiye)

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