Smiley Face Shaped Rod Technique Versus Instrumented Posteriolateral Fusion in Treatment of Isthmic Lumbar Spondylolisthesis

September 21, 2020 updated by: Najib Mohammed AL-shaea, Assiut University
Aim of research is to investigates clinical, surgical and radiological outcome of vertebral pars intetarticularis repair by used smile face shape rod technique and bone grafting and comparing that with posteriolateral fusion with used traditional transpedical screw and rod fixation in management of isthmic spondylistheisis

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Isthmic spondylolisthesis is considered to represent a fatigue fracture of the pars interarticularis of the neural arch, The clinical symptom is activity-related back pain in young and athletic patients . The cause of Isthmic spondylolisthesis in these patients is repetitive stress of the pars interarticularis with subsequent microfracture, which in turn may lead to a bony defect and cause progressive spondylolisthesis in up to 25% of cases. Surgical intervention is indicated for patients who are not responsive despite adequate period of conservative management such as activity modification , physical therapy, and occasionally bracing .

Techniques for repair of a pars defect include Scott wiring , a Buck screw , a pedicle screw and hook , multiple segment fixations or a U-rod . After repair, radiographic healing rates range from 67 percent to 90 percent; asymptomatic and return to sports rates range from 80 percent to 90 percent.

These methods have achieved variable success .In Buck screw fusion surgery,it is not effect on flexion and axial rotation of the spine but bone healing is compromised.

Stabilization with wiring and titanium cable had less success rate than other methods and requires the use of lumbar brace or prolonged immobilization.

The pedicle screw-vertebral plate hook system may complicated by injury to the dural sac or nerves ensues.

Multiple segment fixation with pedicle screws and rods has good success of stabilization but it is effect on flexion and axial rotation of the spine, and may cause degenerative change in adjacent normal segments.

Smiley face shaped rod technique is new method used for repair of isthmic spodylolisthesis using pedical screw on effected segment and smiley face rod revolve around spinal process to stabilization of pars interarticularis of the same segment so it preserve axial rotation and flexion of spin also avoid degenerative change in adjacent levels.

Study Type

Interventional

Enrollment (Anticipated)

30

Phase

  • Not Applicable

Contacts and Locations

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

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

14 years to 71 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. age above 18 years old
  2. Both sex
  3. failure of conservative treatment for 3months
  4. fit for surgery

Exclusion Criteria:

  1. age less than 18
  2. Not fit for surgery
  3. pathological fracture of pars
  4. assosciated pathology like disc degeneration, spinal canal stenosis, spondylolisthesis grad 2,3and 4

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: N/A
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
change pain
Time Frame: pain assess one week postoperation
assessment of pain change one week postoperation by using visual analog scale (AVS) and MacNabs chart to assess degree of change
pain assess one week postoperation
radiological fusion of pars defect
Time Frame: 6 month postoperative
using CT scan for fusion percentage assess at 6 month of postoperation.
6 month postoperative

Collaborators and Investigators

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

Sponsor

Assiut University

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 (Anticipated)

October 1, 2020

Primary Completion (Anticipated)

October 1, 2022

Study Completion (Anticipated)

December 1, 2022

Study Registration Dates

First Submitted

September 16, 2020

First Submitted That Met QC Criteria

September 21, 2020

First Posted (Actual)

September 22, 2020

Study Record Updates

Last Update Posted (Actual)

September 22, 2020

Last Update Submitted That Met QC Criteria

September 21, 2020

Last Verified

September 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • isthmic spondylolisthesis

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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 Isthmic Spondylolisthesis

Clinical Trials on smiley face shape rod

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Mozambique

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe