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Wallis Interspinous Dynamic Stability System for Lumbar Disc Herniation: a Prospective Study

NCT01824108 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 80

Last updated 2013-04-04

No results posted yet for this study

Summary

Lumbar disc herniation is usually treated by discectomy alone. Nonfusion system such as Wallis interspinous implants have also been successfully used in disc degenerative diseases. However, the superiority of a discectomy with Wallis in comparison to a discectomy alone for primary lumbar disc herniation has yet to be determined.The aim of our study is to investigate whether lumbar discectomy combined with the Wallis device provides better radiographic and clinical short-term outcome than posterior lumbar discectomy alone.

Conditions

  • Lumbar Disc Herniation

Interventions

PROCEDURE

Lumbar discectomy

All the patients were in prone positions on the operation table and received general anesthesia. A midline incision was made and paravertebral muscles were dissected unilaterally. Disc excision and nerve root decompression were initially accomplished through a unilateral transflaval approach. Then the wound was closed with a suction drain.

PROCEDURE

Lumbar discectomy combined with Wallis interspinous dynamic stability system

The Wallis interspinous implant is placed after a lumbar discectomy. Interspinal ligaments of operated segment were removed and supraspinal ligament were retained. And then the proper size of Wallis implant was mounted underneath the supraspinous ligament and secured to the spine with the attached Dacron bands,above and below the corresponding spinous processes.

Sponsors & Collaborators

  • Guangdong Provincial People's Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2008-07-31
Primary Completion
2012-10-31
Completion
2012-10-31

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01824108 on ClinicalTrials.gov