NCT07567404

Brief Summary

Procedures 10 years ago performed included intradiscal nucleoplasty (ACUTHERM) and intradiscal electrothermal therapy (IDET). At follow up MRI scans evaluated by two blinded specialists for disc degeneration were carried out. Intra- and interrater variability were accounted for. Baseline and 10-year post-procedure clinical parameters were compared.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
50

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jan 2022

Typical duration 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

Study Start

First participant enrolled

January 15, 2022

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2024

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2024

Completed
2 years until next milestone

First Submitted

Initial submission to the registry

April 15, 2026

Completed
20 days until next milestone

First Posted

Study publicly available on registry

May 5, 2026

Completed
Last Updated

May 5, 2026

Status Verified

May 1, 2026

Enrollment Period

2.2 years

First QC Date

April 15, 2026

Last Update Submit

May 3, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • degeneration of the punctured disc using Pfirrman's classificition

    Ordinal scale of disc deneration with 5 degrees (1=no degeration until 5=complete degeneration of the disc)

    10 years

Secondary Outcomes (1)

  • As secundary outcome pain by numeric rating scale (NRS), oswestry disability index (ODI) and SF-36 which were recorded at baseline and 10 years after intervention.

    10 years

Study Arms (1)

Intradiscal Procedure

Procedures 10 years ago performed included intradiscal nucleoplasty (ACUTHERM) and intradiscal electrothermal therapy (IDET).

Procedure: Intradiscal electrothermal Therapy

Interventions

Intradiscal heating for denervation of nerve ingrowth via flouroscopy

Intradiscal Procedure

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

To be included in the retrospective study, patients must have undergone one of the specified intradiscal procedures, successfully established contact, voluntarily agreed to participate, and demonstrated sufficient language proficiency to complete study assessments.

You may qualify if:

  • Patients eligible for early intradiscal procedures included those with low back pain (NRS \> 5) caused by discogenic pain due to disc degeneration or radicular pain due to disc protrusion and subsequent nerve root compression. All patients were required to have been resistant to conservative therapy. Diagnoses were based on patient history, physical examination, imaging studies, and, in some cases, provocative discography if discogenic pain could not otherwise be clearly identified.

You may not qualify if:

  • Perioperative complications.
  • Post-interventional lumbar spine surgery in the region to be examined.
  • Contraindications for a repeated MRI.
  • Metastases or infection of the spine since surgery.
  • Spinal canal stenosis.
  • A diagnosis of anxiety disorder, depression, or somatoform disorder since surgery, based on their medical history.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sportklinik, Klinikum Stuttgart

Stuttgart, 70374, Germany

Location

Related Publications (1)

  • Veihelmann A, Beck F, Huth J, Spetzger U, Schulze-Pellengahr C, Teske W. Minimal-invasive pain procedures are effective in different degenerative pain generators in CLBP: A prospective cohort study. Technol Health Care. 2024;32(6):4727-4741. doi: 10.3233/THC-241003.

    PMID: 39093100BACKGROUND

Related Links

Study Officials

  • Andreas Veihelmann

    Sportklinik Klinikum Stuttgart

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
OTHER
Target Duration
10 Years
Sponsor Type
NETWORK
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PhD, MD

Study Record Dates

First Submitted

April 15, 2026

First Posted

May 5, 2026

Study Start

January 15, 2022

Primary Completion

April 1, 2024

Study Completion

May 1, 2024

Last Updated

May 5, 2026

Record last verified: 2026-05

Locations