Greenwich Lumbar Stenosis SLIP Study (SLIP)

December 2, 2015 updated by: Greenwich Hospital

Greenwich Lumbar Stenosis SLIP Study: A Multi-center, Randomized, Prospective Clinical Trial Comparing Spinal Laminectomy to Laminectomy With Instrumented Pedicle Screw Fusion for Lumbar Stenosis With Grade I Spondylolisthesis

The purpose of the study is to determine the proper use of lower back screws and rods (instrumentation) and bony fusion in subjects with one level of degenerative spinal narrowing (stenosis) compressing nerves to the legs with one spinal bone slipping forward on another (spondylolisthesis). There are two types of operations that surgeons perform for this problem. Some spinal surgeons remove some bone in the back (laminectomy) to decompress the nerves. Other surgeons perform a laminectomy (decompression) as above, but feel that it is also important to strengthen the back by placing screws and rods into the spine and adding more bone to obtain a new bridge of bone away from the nerves (decompression with instrumented fusion). This study aims to test the hypothesis that adding instrumented fusion to a decompression for this spinal problem will improve long term patient outcomes.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

There is considerable debate among spinal surgeons regarding the optimal surgical procedure for lumbar spinal stenosis with a grade I spondylolisthesis. The major question is whether or not instrumented pedicle screw fusion should be undertaken when a decompressive laminectomy is performed to relieve neural compression. This multi-center, randomized, prospective clinical study aims to address this question by testing the hypothesis that adding instrumented fusion to a decompression for this spinal problem will improve long-term patient outcomes.

Study Type

Interventional

Enrollment (Actual)

66

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Connecticut
      • Greenwich, Connecticut, United States, 06830
        • Greenwich Hospital
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Massachusetts General Hospital
      • Burlington, Massachusetts, United States, 01805
        • Lahey Clinic
    • Ohio
      • Cleveland, Ohio, United States, 44195
        • Cleveland Clinic Spine Institute
    • Rhode Island
      • Providence, Rhode Island, United States, 02903
        • Rhode Island Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Symptomatic lumbar spinal stenosis and single level grade I spondylolisthesis (3-14 mm)

Exclusion Criteria:

  • History of previous lumbar spinal surgery in region of stenosis
  • Gross spinal instability (defined as greater than 3 mm motion on flexion/extension studies)
  • Serious medical illness (ASA Class III or higher)
  • Spondylolisthesis greater than 14 mm or associated with spondylolysis

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: 1
Lumbar Laminectomy without Fusion
Procedure: Lumbar Laminectomy
Removal of bone to decompress spinal nerves
Active Comparator: 2
Lumbar Laminectomy with Pedicle Screw Instrumented Fusion
Procedure: Lumbar Laminectomy with Instrumented Pedicle Screw Fusion
Removal of bone to decompress spinal nerves with placement of spinal screws and extra bone to strengthen the spine

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
SF-36 (physical component summary score)
Time Frame: 2 year
2 year

Secondary Outcome Measures

Outcome Measure
Time Frame
Oswestry Disability Index
Time Frame: 2 year, 3 year, 4 year
2 year, 3 year, 4 year
Major Complication rate
Time Frame: 30 days
30 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Greenwich Hospital

Investigators

  • Study Director: Zoher Ghogawala, MD, Yale University School of Medicine (Greenwich Hospital)
  • Study Director: Edward C Benzel, MD, Cleveland Clinic Spine Institute (Cleveland Clinic Foundation)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2002

Primary Completion (Actual)

September 1, 2009

Study Completion (Actual)

October 1, 2014

Study Registration Dates

First Submitted

April 26, 2005

First Submitted That Met QC Criteria

April 25, 2005

First Posted (Estimate)

April 26, 2005

Study Record Updates

Last Update Posted (Estimate)

December 3, 2015

Last Update Submitted That Met QC Criteria

December 2, 2015

Last Verified

December 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • GH-SLIP-384

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Spinal Stenosis

Clinical Trials on Lumbar Laminectomy

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Netherlands

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe