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Robots take on knee surgery: a new trial for PCL fractures

NCT ID NCT07575256

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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares robot-assisted arthroscopic surgery to standard open surgery for fixing a type of knee fracture called a PCL avulsion. The goal is to see if the robot helps the bone heal more accurately and improves long-term knee function. The trial will enroll 22 adults with recent fractures and follow them after surgery.

What this could mean

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

Active substance
Robot-assisted arthroscopic surgery
What this could lead to
If successful, this could show that robot-assisted surgery leads to more precise bone alignment and better knee function recovery after a PCL avulsion fracture.
What could go wrong
This is a very small early study with only 22 participants, so results may not apply to everyone. The robot may not improve outcomes enough to justify its cost or complexity.

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

About 22 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

May 2026

An estimate. Start dates often move.

Expected to finish

Dec 2030

An estimate. End dates often move.

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 years and older

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: * Age ≥ 18 years * Acute closed tibial avulsion fracture, with surgery performed within 3 weeks of injury ③ Radiographically confirmed Meyers-McKeever classification Type II or III fracture ④ Absence of absolute contraindications to surgical intervention ⑤ Provision of voluntary, written informed consent prior to enrollment Exclusion Criteria: * Pathological fractures or complex ipsilateral injuries, including concomitant fractures at other anatomical sites. * Prior ipsilateral knee joint surgery. ③. Significant vascular or neurological compromise. * Acute meniscal tears, acute anterior cruciate ligament (ACL) ruptures, or acute injuries to the medial or lateral collateral ligaments. * Compromised local soft tissue integrity, including open fractures. ⑥. Withdrawal from the study or loss to follow-up despite having provided written informed consent.

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As listed by the trial registrant

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

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

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Contacts and locations

Locations

  • Beijing Tsinghua Changgung Hospital

    Beijing, Beijing Municipality, 102218, China

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