Microendoscopic Lumbar Discectomy: A Study of 100 Cases

• Conditions: Lumbar Disc Herniation
• Interventions: Procedure: micro endoscopic discectomy

• Registration Number: NCT03359564
• Lead Sponsor: Peking University People's Hospital

Brief Summary

Evaluate the outcome of micro endoscopic discectomy (MED) by tubular retractors on safety and efficacy of the technique.

Detailed Description

Evaluate the outcome of micro endoscopic discectomy (MED) by tubular retractors on safety and efficacy of the technique.Patients who underwent surgery for herniated disc using the tubular retractors. The results were evaluated by using VAS (Visual Analog Scale 0-5) for back and leg pain and ODI (Oswestry Disability Index). Patients were followed up at intervals of 1 week, 6 weeks, 3 months, 6 months, 12 months and 2 years after surgery.

Study Timeline

• Status Verified: 2017-11
• Study First Submitted: 2017-11-26
• Study First Submitted QC: 2017-11-30
• Last Update Submitted: 2017-11-30
• Study First Posted: 2017-12-02
• Last Update Posted: 2017-12-02
• Study Start: 2018-01-01
• Primary Completion: 2021-12-31
• Study Completion: 2021-12-31

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 100

Inclusion Criteria

• Patients with at least 6 weeks of conservative treatment with positive nerve root tension signs, radicular pain
• Patients are diagnosed with lumbar disc herniation by MRI
• Patients who underwent surgery for herniated disc using the tubular retractor

Exclusion Criteria

• Patients with large central disc herniation, chronic discogenic pain, discitis, multi-level disease, presence of instability or history of lumbar surgery

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
micro endoscopic discectomy	micro endoscopic discectomy	the patients with lumbar disc herniation

Primary Outcome Measures

Name	Time	Method
Oswestry Disability Index	2 years after operation	The efficacy of surgery were evaluated by using Oswestry Disability Index.

Secondary Outcome Measures

Name	Time	Method
Oswestry Disability Index	preoperative evaluation and 1 week, 6 weeks, 3 months, 6 months, 12 months after operation	The efficacy of surgery were evaluated by using Oswestry Disability Index.
Visual Analog Scale	preoperative evaluation and 1 week, 6 weeks, 3 months, 6 months, 12 months and 2 years postoperative follow-up	The efficacy of surgery were evaluated by using Visual Analog Scale for back and leg pain.