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Back surgery showdown: which fusion technique works best?

NCT ID NCT00869882

Disease control Sponsor: University Hospital, Bordeaux 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at 60 adults with degenerative spondylolisthesis, a condition where a spine bone slips forward causing pain. All patients needed spinal fusion surgery. The researchers compared two surgical methods: one that fuses the back of the spine only, and another that also fuses the front via the back. The goal was to see which approach leads to better bone fusion, pain relief, and fewer complications.

What this could mean

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

Active substance
surgical procedure (spinal fusion with or without additional interbody fusion)
What this could lead to
If successful, this could help surgeons choose the best surgical approach for better fusion and pain relief in patients with degenerative spondylolisthesis.
What could go wrong
This is a small, completed trial with only 60 participants. Results may not apply to all patients, and surgery carries risks like infection, bleeding, or nerve damage.

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

60 people

The number who actually took part.

Start date

Jun 2009

Finished

Nov 2013

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 74 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: * Adults aged less than 75, * Having been informed about clinical trial objectives and risk, * Covered by health insurance system, * Suffering from degenerative spondylolisthesis (whatever the grade and intervertebral disc height) needing one-level surgical fusion due to either invalidating lombalgia/radiculalgia despite 6-month optimal medical treatment and/or motor neurological symptoms. Exclusion Criteria: * Previous lumbar fusion, * Previous spine traumatism, * Presence of at least one major contraindication to surgery and/or general anaesthesia (ie, non controlled coagulopathy, active infection, or serious underlying disease, auto-immune affection). * Presence of at least one contraindication to either TLIF or GPLI, * Severe radiological osteoporosis. * Active cancer at time of inclusion into the study. * Unlikely to comply with the requirements of the study and/or to complete the study for psychological, social, familial or geographical reasons. * Under any administrative or legal supervision.

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Conditions

The condition(s) this trial relates to.

spondylolisthesis spondylosis

As listed by the trial registrant

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

Degenerative spondylolisthesis

Contacts and locations

Locations

  • Service de chirurgie orthopédique, Hôpital Pellegrin Tripode

    Bordeaux, 33076, France

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