NCT03634046

Brief Summary

Lumbar disc herniation (LDH) is a common and frequently-occurring disease giving rise to low back pain and (or) leg pain. There are about 1.5 million people with LDH-related pain, accounting for 10% of outpatients each year in China. The mechanism of LDH-related pain is that the degeneration causes the protrusion of the intervertebral disc directly to the lower lumbar nerve root or spinal cord, and the chemical stimulation plays a key role in it. Currently, LDH treatments are mainly divided into conservative treatment, surgical treatment and minimally invasive treatment. The minimally invasive technique is a new technology that has been arising in recent years, with small wound, little bleeding and quick recovery. It mainly includes collagenase dissolving, laser decompression, radiofrequency ablation, etc. Intervertebral disc radiofrequency ablation is an early application of minimally invasive technique with a wide range of applications in a long time. The percutaneous transforaminal endoscopic discectomy (PTED) is a new technique, which is applied in clinics with shorter time, and the implementation and efficacy of the technique need to be further discussed. A case-control clinical trial is designed to compare the efficacy and safety of PTED with radiofrequency ablation in the treatment of LDH. Main outcome is Visual Analogue Scale for leg pain, secondary outcomes are Oswestry disability index, quality of life assessment, Burns Depression Checklist, recovery rate, complications, operation time and radiation exposure time, etc. The follow-up time points are 7 days, 1 month, 6 months and 12 months post-operation.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2016

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

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

Study Start

First participant enrolled

January 1, 2016

Completed
2.5 years until next milestone

First Submitted

Initial submission to the registry

July 17, 2018

Completed
1 month until next milestone

First Posted

Study publicly available on registry

August 16, 2018

Completed
16 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2018

Completed
25 days until next milestone

Study Completion

Last participant's last visit for all outcomes

September 26, 2018

Completed
Last Updated

August 16, 2018

Status Verified

August 1, 2018

Enrollment Period

2.7 years

First QC Date

July 17, 2018

Last Update Submit

August 14, 2018

Conditions

Keywords

Lumbar Disc HerniationLow Back PainPercutaneous Transforaminal Endoscopic DiscectomyRadiofrequency Ablation

Outcome Measures

Primary Outcomes (1)

  • Changes on the Visual Analogue Scale for Leg Pain

    Draw a line of 100 mm on the paper, the end of the horizontal line is 0, indicating no pain; The other end is 10, which is a very serious pain; The middle section shows varying degrees of pain. Let the patient draw a mark on the horizontal line to indicate the extent of the pain.

    Baseline, 7 days, 1 month, 6 months and 12 months post-operation.

Secondary Outcomes (6)

  • Changes on the Oswestry Disability Index (ODI)

    Baseline, 7 days, 1 month, 6 months and 12 months post-operation.

  • Changes on 36-Item Short-Form Quality of Life Questionnaire (SF-36)

    Baseline, 7 days, 1 month, 6 months and 12 months post-operation.

  • Changes on Burns Depression Checklist

    Baseline, 7 days, 1 month, 6 months and 12 months post-operation.

  • Changes on the Visual Analogue Scale for Back Pain

    Baseline, 7 days, 1 month, 6 months and 12 months post-operation.

  • Complications

    through study completion, up to 1year of follow-up.

  • +1 more secondary outcomes

Study Arms (2)

PTED group

EXPERIMENTAL

Percutaneous transforaminal endoscopic discectomy (PTED). Use German Joimax company production of intervertebral foramen mirror operation system, the prone position, by preoperative X-ray locating the skin into the needle point, intervertebral level away from the spine line 8 \~ 10 cm, 18 g needle insertion, the Kambin security triangle directly through the middle of pathological changes of intervertebral disc. After the success of the puncture, remove the needle core, injection of contrast agent, methylene blue (9:1) mixture disk imaging, replace the godet, slight rotation step by step to insert the expansion sleeve, X-ray perspective to determine work under the correct position. Radiofrequency ablation is used to form nucleus pulposus and fibrous ring and stop bleeding.

Procedure: Percutaneous transforaminal endoscopic discectomyProcedure: Radiofrequency ablation

RA group

ACTIVE COMPARATOR

Radiofrequency ablation (RA). Patients in prone position, local infiltration anesthesia, the puncture point for lesion clearance level, is apart from the spine line distance is 8 to 10 cm, in the perspective of the C-shaped arm X-ray machine; After the puncture needle was reached, the needle core was removed and the radiofrequency head was pierced through the puncture channel to the nucleus pulposus. In accordance with the method of melt into the shrinking exit, the intensity of the treatment by band 2, increased to 3 file again, according to the needle round mouth of 2, 4, 6, 8, 10, 12 o'clock to this process is repeated six times.

Procedure: Radiofrequency ablation

Interventions

The same as the descriptions in experimental group.

PTED group

The same as the descriptions in active comparator group.

PTED groupRA group

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Lumbar intervertebral disc herniation has been treated with conservative treatment of \> for 3 months, or can only temporarily improve symptoms to relieve pain, but can not be maintained for a long time, aged between 18 and 60;
  • The symptoms and signs of lumbar intervertebral disc herniation are obviously consistent with those of CT or MRI;
  • The protrusion size was \< 8.0mm, and imaging examination showed the protrusion of intervertebral disc, mild or moderate protrusion, without calcification, dissociation, and osseous spinal stenosis;
  • Patients have a strong desire to treat, and understand radiofrequency thermal coagulation ablation and intervertebral endoscopic treatment of possible risk patients;
  • Conservative treatment is ineffective and the surgical treatment is rejected.

You may not qualify if:

  • Patients with spinal fractures, tumors and intervertebral discs have skin infections that affect the puncture;
  • The combination of mental illness or cognitive dysfunction;
  • Patients with serious diseases such as active tuberculosis or heart, lung, liver and kidney;
  • Abnormal bleeding or coagulation function caused by various reasons;
  • Menstrual period and lactation period;
  • No informed consent is signed.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

FirstXianJiaotongU

Xi'an, Shaanxi, 710061, China

Location

MeSH Terms

Conditions

Intervertebral Disc DisplacementLow Back Pain

Interventions

Radiofrequency Ablation

Condition Hierarchy (Ancestors)

Spinal DiseasesBone DiseasesMusculoskeletal DiseasesHerniaPathological Conditions, AnatomicalPathological Conditions, Signs and SymptomsBack PainPainNeurologic ManifestationsSigns and Symptoms

Intervention Hierarchy (Ancestors)

Radiofrequency TherapyTherapeuticsAblation TechniquesSurgical Procedures, Operative

Study Officials

  • Yingang Zhang, MD

    First Affiliated Hospital, Medical College of Xi'an Jiaotong University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The outcome assessor do not know all the information about the data origin and the group.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Subjects were recruited comparatively into two groups (percutaneous transforaminal endoscopic discectomy (PTED) group and Radiofrequency Ablation (RA) group). The follow-up time points are 7 days, 1 month, 6 months and 12 months post-operation in both groups, respectively.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 17, 2018

First Posted

August 16, 2018

Study Start

January 1, 2016

Primary Completion

September 1, 2018

Study Completion

September 26, 2018

Last Updated

August 16, 2018

Record last verified: 2018-08

Data Sharing

IPD Sharing
Will not share

Locations