The Effect of Using Autologous Platelet Rich Plasma on Posterior Lumbar Interbody Fusion

August 24, 2017 updated by: Ahmed Abdelazim Abdelrahim Hassan, Assiut University

The Effect of Using Autologous Platelet Rich Plasma on Posterior Lumbar Interbody Fusion : a Randomized Comparative Trial

the study aims to determine the effect of using Autologous platelet rich plasma on both the quality & rate of posterior lumbar interbody fusion & its outcome on the Patient regarding postoperative lumbar pain & functional outcome

Study Overview

Detailed Description

The study will be submitted for approval by the Ethics Committee of Faculty of Medicine, Assiut University, and written informed consent will be obtained from all patients prior to enrollment. The study population will be selected from patients attending the Department of Orthopedics and Trauma surgery, Assiut University hospitals.

Sixty patients will be selected for the study and will be randomized into two group one receiving posterior lumbar interbody fusion with Autologous platelet rich plasma and the other group will receive posterior lumbar interbody fusion without Autologous platelet rich plasma.

Methodology pre-operative preparation: Prior to the operation the selected patients will perform lumbar spine Computarised tomography and X ray films. Both the visual analogue scale of pain and the Oswestry disability index will be collected from the patients

Autologous platelet rich plasma preparation:

Autologous Platelet rich plasma is obtained using a two-stage centrifugation process.

Whole blood sample will be drawn from the participant and be collected in a sterile tube containing anticoagulant (sodium citrate 3.8% or Ethylenediaminetetraacetic acid ). The tube will be centrifuged at 160xg relative centrifugal force (about 1000 round per minute) for 10 min in a centrifugal apparatus. The first spin will separate platelet poor plasma at the top from red blood cells at the bottom and platelet rich plasma above (mixed with the white blood cells in the buffy coat). The Platelet poor plasma, Platelet rich plasma and a few red blood cells will be aspirated into a new tube, mixed and in the second spin, the tube will be centrifuged at 400xg relative centrifugal form (about 1500 round per minute) for another 10 minutes. The upper section will consist of Platelet poor plasma and the Platelet rich plasma will be collected at the bottom of the tube in the form of pellet. Then, Platelet poor plasma and Platelet rich plasma will be aspirated and mixed (discarding the upper portion). Prior to treatment calcium chloride 3% will be added to activate platelets immediately before its application to avoid coagulation of the specimen (for every 1.5 milliliter plasma, 1 milliliter calcium chloride 3% is added).

Surgery:

A posterior lumbar interbody fusion with posterior pedicle screw fixation will be performed through a midline posterior approach. Trans-pedicular screws will be placed under fluoroscopic guidance, followed by discectomy. The vertebral body endplates will be prepared by curetting until point bleeding was seen.

Autologous cancellous bone chips will be harvested unilaterally from the iliac wing, approached through the midline posterior incision. The bone chips will be steeped in the plasma solution until clotting occurred visually (approximately 10 minutes). In the control group, the bone chips will be filled with autologous bone in the same way and were implanted after approximately 10 minutes without incubation in a plasma solution.

Study Type

Interventional

Enrollment (Anticipated)

60

Phase

  • Phase 4

Contacts and Locations

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

Study Contact

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

20 years to 70 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Spondylolisthesis.
  • Degenerative disc disease requiring posterior lumbar interbody fusion not responding to medical treatment for 1 year.
  • Age between 20 & 70 years.
  • Single or multiple level fusions.

Exclusion Criteria:

  • Previous lumbar spine surgery.
  • Other lumbar spine pathology
  • severe osteoporosis
  • Chronic use of steroid or non-steroidal anti-inflammatory drugs (more than one year)
  • Patients younger than 20 years old.
  • Patients older than 70 years old.
  • Immunocompromised patients (eg. Chronic renal failure)

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: PARALLEL
  • Masking: SINGLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: posterior lumbar interbody fusion + platelet rich plasma
the addition of autologous platelet rich plasma to the bone graft
adding autologous platelet rich plasma to the bone graft harvested from the patient
ACTIVE_COMPARATOR: posterior lumbar interbody fusion
bone graft alone
performing posterior lumbar interbody fusion without using platelet rich plasma

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
bridging trabecular bone scale
Time Frame: from 3 to 6 month post-operative
the degree of bridging bone across the fused vertebral bodies
from 3 to 6 month post-operative

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
visual analogue of pain
Time Frame: from 3 to 6 month post-operative
the amount of pain sensed by the patient pre and post-operative
from 3 to 6 month post-operative
the Oswestry disability index
Time Frame: from 3 to 6 month post-operative
the functional outcome on the patient
from 3 to 6 month post-operative

Collaborators and Investigators

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

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)

November 1, 2017

Primary Completion (ANTICIPATED)

January 1, 2019

Study Completion (ANTICIPATED)

May 1, 2019

Study Registration Dates

First Submitted

August 23, 2017

First Submitted That Met QC Criteria

August 24, 2017

First Posted (ACTUAL)

August 25, 2017

Study Record Updates

Last Update Posted (ACTUAL)

August 25, 2017

Last Update Submitted That Met QC Criteria

August 24, 2017

Last Verified

August 1, 2017

More Information

Terms related to this study

Other Study ID Numbers

  • Platelet rich plasma

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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.

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