NCT05270486

Brief Summary

There is a shallow learning curve with TELD (transforaminal endoscopic lumbar discectomy). The aim of this study is to assess the safety and efficacy of TELD assisted by electromagnetic navigation for treating lumbar disc herniation (LDH).

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Jun 2022

Status
unknown

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

January 29, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

March 8, 2022

Completed
3 months until next milestone

Study Start

First participant enrolled

June 1, 2022

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2022

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2023

Completed
Last Updated

March 8, 2022

Status Verified

February 1, 2022

Enrollment Period

7 months

First QC Date

January 29, 2022

Last Update Submit

February 26, 2022

Conditions

Keywords

electromagnetic navigationherniated disctransforaminal endoscopic lumbar discectomy

Outcome Measures

Primary Outcomes (2)

  • Change in Oswestry Disability Index (ODI)

    0% to 20%: minimal disability: The patient can cope with most living activities. Usually no treatment is indicated apart from advice on lifting sitting and exercise. 21%-40%: moderate disability: The patient experiences more pain and difficulty with sitting, lifting and standing. Travel and social life are more difficult and they may be disabled from work. Personal care, sexual activity and sleeping are not grossly affected and the patient can usually be managed by conservative means. 41%-60%: severe disability: Pain remains the main problem in this group but activities of daily living are affected. These patients require a detailed investigation. 61%-80%: crippled: Back pain impinges on all aspects of the patient's life. Positive intervention is required. 81%-100%: These patients are either bed-bound or exaggerating their symptoms.

    Preoperatively. 6 weeks, 3 months, 6 months and 12 months post-operatively

  • Change in Roland Morris Disability Questionnaire (RMDQ)

    This is a 24 item questionnaire. The patient is asked to tick a statement when it applies to him that specific day, this makes it possible to follow changes in time. The end score is the sum of the ticked boxes. The score ranges from 0 (no disability) to 24 (max. disability)

    Preoperatively. 6 weeks, 3 months, 6 months and 12 months post-operatively

Secondary Outcomes (3)

  • Back Pain Numerical Rating Score (BPNRS)

    Preoperatively. 6 weeks, 3 months, 6 months and 12 months post-operatively

  • Leg Pain Numerical Rating Score (LPNRS)

    Preoperatively. 6 weeks, 3 months, 6 months and 12 months post-operatively

  • Modified MacNab Criteria

    Preoperatively. 6 weeks, 3 months, 6 months and 12 months post-operatively

Study Arms (2)

Group A

group A undergoing TELD (transforaminal endoscopic lumbar discectomy) with electromagnetic navigation system

Procedure: Electromagnetic navigation system

Group B

group B undergoing TELD with X-ray fluoroscopy (gold standard)

Interventions

The aim of this study is to assess the safety and efficacy of TELD assisted by electromagnetic navigation for treating lumbar disc herniation (LDH).

Group A

Eligibility Criteria

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

20 consecutive patients, group A undergoing TELD with electromagnetic navigation system vs. group B undergoing TELD with X-ray fluoroscopy (gold standard). Parameters: gender, age, body mass index, neurological examination, comorbidities (diabetes, AHT, depression, smoking, work status, other joint problems), recurrence of disc herniation, follow-up time, pain evaluation on the day before surgery (numerical rating scale), herniation level, type of herniation (disc protrusion, disc prolapsed, disc extrusion or sequestered disc), duration of preoperative back pain/leg pain, use of analgesics (type and duration), preoperative Roland-Morris disability questionnaire, preoperative Oswestry Disability Index.

You may qualify if:

  • age≥18 and ≤80 years;
  • typical clinical symptoms and consistent imaging evidence of mono-radiculopathy LDH; or single level LSS combined with disc herniation
  • recalcitrant pain despite proper conservative therapy (including analgesics, NSAIDs, corticoids infusion under CT guidance and physical therapy) for at least 3 months before surgery and/or neurological deficit in the territory of the irritated nerve root
  • VAS pain ≥ 6/10
  • Absence of significant instability;

You may not qualify if:

  • serious underlying disease or mental illnesses
  • severe central stenosis, cauda equina syndrome, spinal instability, active infection, and serious calcified fragments
  • previous lumbar treatment with spinal surgery, ozone intervention, or radiofrequency ablation
  • unwilling or unable to participate in treatment and complete follow-up
  • Multi-level disc pathology
  • MRC paresis \<4/5
  • Pregnancy
  • participation in another clinical trial

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Intervertebral Disc Displacement

Condition Hierarchy (Ancestors)

Spinal DiseasesBone DiseasesMusculoskeletal DiseasesHerniaPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator, MD, PhD, Neurosurgeon

Study Record Dates

First Submitted

January 29, 2022

First Posted

March 8, 2022

Study Start

June 1, 2022

Primary Completion

December 31, 2022

Study Completion

December 31, 2023

Last Updated

March 8, 2022

Record last verified: 2022-02