NCT03585439

Brief Summary

This study aims to evaluate clinical and radiological outcomes of isthmic spondylolisthesis surgically treated with combined approach. The goal is to demonstrate that it is a safe and efficient technique to treat isthmic spondylolisthesis. There is very little literature concerning this procedure.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
87

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jun 2018

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 6, 2018

Completed
22 days until next milestone

Study Start

First participant enrolled

June 28, 2018

Completed
15 days until next milestone

First Posted

Study publicly available on registry

July 13, 2018

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 28, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 28, 2018

Completed
Last Updated

April 8, 2026

Status Verified

April 1, 2026

Enrollment Period

5 months

First QC Date

June 6, 2018

Last Update Submit

April 2, 2026

Conditions

Keywords

Isthmic spondylolisthesisvertebral fusioncombined approachcircumferential fusionALIFposterior fusion

Outcome Measures

Primary Outcomes (1)

  • Fusion status

    Every patient has a CT-Scan of the lumbar spine done to check fusion status. The interpretation is made by the surgeon who did the surgery and one independent reviewer.

    From 6 months to 1 year after surgery

Secondary Outcomes (8)

  • Restoration of the foraminal diameter

    3 months and 1 year after surgery

  • Correction of the spondylolisthesis-induced kyphosis after surgery

    3 months and 1 year after surgery

  • Segmental lordosis

    3 months and 1 year after surgery

  • Local Lordosis

    3 months and 1 year after surgery

  • Back pain

    Pre-operative, 3 months and 1 year after surgery

  • +3 more secondary outcomes

Study Arms (1)

Single cohort of operated patients

One group of patients: isthmic spondylolisthesis operated in our center using a double approach technique

Procedure: Observational study evaluating the results of an intervention for isthmic spondylolisthesis: surgical procedure with double approach: Anterior lumbar Interbody Fusion then postero-lateral fusion

Interventions

First in supine position, an ALIF is performed: with a Pfannenstiel incision, through a retroperitoneal approach, a discectomy is performed at the level of the spondylolisthesis then a cage is placed between the two vertebral bodies. Then, in prone position, a standard posterior approach is performed, pedicle screws are placed to achieve a postero-lateral fusion. A decompression may be associated.

Single cohort of operated patients

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Consecutive cohort of patients operated in our center from 2013 to 2017

You may qualify if:

  • All patients aged over 18 years
  • With isthmic spondylolisthesis at L4-L5 or L5-S1
  • Operated in our center with a double approach: Anterior lumbar interbody fusion then postero-lateral fusion
  • Consent for participation

You may not qualify if:

  • Pseudarthrosis L5-S1

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

CMC Ambroise Pare

Neuilly-sur-Seine, Île-de-France Region, 92200, France

Location

Related Publications (1)

  • Khalife M, Dauzac C, Lenoir T, Magrino B. Isthmic spondylolisthesis treated with circumferential arthrodesis (ALIF and posterior fixation): correction, fusion and indirect decompression. Acta Orthop Belg. 2021 Dec;87(4):787-794. doi: 10.52628/87.4.27.

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 6, 2018

First Posted

July 13, 2018

Study Start

June 28, 2018

Primary Completion

November 28, 2018

Study Completion

November 28, 2018

Last Updated

April 8, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations