Large Doses of Methylprednisolone Combined With Gabapentin in Total Knee Arthroplasty

November 28, 2020 updated by: Henryk Liszka, Jagiellonian University

The Impact of Pre-emptive Large Doses of Methylprednisolone Combined With Gabapentin on Pain Treatment and Convalescence After Total Knee Arthroplasty in Elderly: A Double-blind Randomized Study

The aim of the study was to assess whether administration of gabapentin and methylprednisolone as "pre-emptive analgesia" in a group of patients above 65 years of age would be effective in complex pain management therapy following total knee arthroplasty (TKA). For the study investigators will qualify one hundred seventy, above 65 years old patients. The participants will be double-blind randomized into two groups: the study and controls The study group will receive as "pre-emptive" analgesia a single dose of 300 mg oral gabapentin and 125 mg intravenous methylprednisolone, while the others placebo. Perioperatively, all the patients will receive opioid and nonopioid analgesic agents calculated for 1 kg of body weight. Investigators will measure the levels of inflammatory markers (leukocytosis, C-reactive protein - CRP), pain intensity level at rest (numerical rating scale - NRS), the life parameters and all complications.

Study Overview

Detailed Description

The aim of the study was to assess whether administration of gabapentin and methylprednisolone as "pre-emptive analgesia" in a group of patients above 65 years of age would be effective in complex pain management therapy following total knee arthroplasty (TKA).170 patients operated on due to unilateral TKA will be double-blinded randomized into two groups: the study and the controls. Exclusion criteria are: clinical situation that 1/ restricted glucocorticoid administration: diabetes type 1 and 2, CRP levels above normal values (≥5 mg/l), chronic steroid treatment, peptic ulcers treated in the past 30 days and 2/and the chronic pain in the course of gonarthrosis, high intensity requiring use opioids.

The participants of the study will be subjected to the standardized procedure of subarachnoid anesthesia with subsequent unilateral femoral nerve block at the operated side, followed by the surgical procedure - unilateral TKA. The study group will receive as "pre-emptive" analgesia a single dose of 300 mg oral gabapentin and 125 mg intravenous methylprednisolone, while the others placebo. Prior to anesthesia induction, the patients receive: anti-infection prophylactics intravenous cephazolin 2.0 g, for hemostasis control - tranexamic acid 1.0 g, an anti-emetic agent - ondansetron 8 mg. Fluid supply (crystalloids) will be standardized: 12 ml/kg in the first hour of surgery and 6 ml/kg in the following hours, packed red blood cells if blood loss exceeded 600 ml and hemoglobin concentration <10g/l during the time of operation. Pain management will be carried out based on the results of the NRS scales at rest. Every 6 hours NRS will be checked and intravenous PCA (patient-controlled analgesia) oxycodone hydrochloride, if pain was ≥4 points NRS or intravenous paracetamol, metamizole, if the pain was 2 - 4 NRS points will be administered, all pain medications will be calculated for 1 kg of body weight. In keeping with the ERAS (Enhanced Recovery After Surgery) protocol, on the day of surgery the patients will receive orally fluids and meals, will be mobilized and rehabilitated.

The study was approved by the institutional review board (nr 1072.6120.11.2020). Oral and written informed consent to participate in the study will be collected from all participants of the study. The statistical analysis of the groups will be performed to asess the demographic dates, life parameters, general condition in keeping with the ASA (American Society of Anesthesiology), POSSUM (Physiologic and Operative Severity Score for the enUmeration of Mortality and Morbidity) score, total dose of analgesic medications administered parenterally calculated for 1 kg of body mass in response to value of NRS at rest on day 0, time of administration the first dose, and duration of peripheral nerve block. On the day of surgery and on subsequent days, determinations will be made of glycemia levels and inflammatory markers: C-reactive protein (CRP) and leukocytosis levels.

Study Type

Interventional

Enrollment (Actual)

160

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 Locations

    • Malopolska
      • Krakow, Malopolska, Poland, 30688
        • University Hospital in Krakow

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

65 years and older (Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • patients over 65 years old operated on unilateral total knee arthroplasty

Exclusion Criteria:

  • diabetes type 1 and 2,
  • CRP levels above normal values (≥5 mg/l),
  • chronic steroid treatment,
  • peptic ulcers treated in the past 30 days,
  • chronic pain in the course of gonarthrosis,

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 Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Study Group
The study group will receive as "pre-emptive" analgesia a single dose of 300 mg oral gabapentin and 125 mg intravenous methylprednisolone.
The study group will receive as "pre-emptive" analgesia a single dose of 300 mg oral gabapentin and 125 mg intravenous methylprednisolone.
The study group will receive as "pre-emptive" analgesia a single dose of 300 mg oral gabapentin and 125 mg intravenous methylprednisolone.
Placebo Comparator: Controls group
The controls group will receive placebo orally - a tablet without any pharmacological properties, intravenously - saline solution.
The controls group will receive placebo orally - a tablet without any pharmacological properties, intravenously - normal saline solution
The controls group will receive placebo orally - a tablet without any pharmacological properties, intravenously - normal saline solution

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pain intensity assessed by NRS
Time Frame: change in every 6 hours on day 0
The level of postoperative pain measured in the numerical rating scale (NRS) at rest (minimum 0 - no pain, maximum 10 - the maximum of pain).
change in every 6 hours on day 0
the dose of parenteral analgesics agents
Time Frame: 24 hours
Dose of oxycodone hydrochloride in mg/kg body weight, paracetamol in mg/kg body weight, metamizole in g/kg body weight
24 hours
C-reactive protein (CRP) level
Time Frame: change in 0,1,2,3 days after surgery
C-reactive protein (CRP) level measured in mg/l
change in 0,1,2,3 days after surgery
Leukocytosis level
Time Frame: change in 0,1,2,3 days after surgery
Leukocytosis level measured in µL
change in 0,1,2,3 days after surgery
Adverse effects
Time Frame: 0 day after surgery
The occurrence of adverse effects that would delay early rehabilitation, possible complication development, perioperative mortality to the POSSUM scale, comorbidities
0 day after surgery
Adverse effects
Time Frame: 1 day after surgery
The occurrence of adverse effects that would delay early rehabilitation, possible complication development, perioperative mortality to the POSSUM scale, comorbidities
1 day after surgery
Adverse effects
Time Frame: 2 day after surgery
The occurrence of adverse effects that would delay early rehabilitation, possible complication development, perioperative mortality to the POSSUM scale, comorbidities
2 day after surgery
Adverse effects
Time Frame: 3 day after surgery
The occurrence of adverse effects that would delay early rehabilitation, possible complication development, perioperative mortality to the POSSUM scale, comorbidities
3 day after surgery
Adverse effects
Time Frame: 14 day after surgery
The occurrence of adverse effects that would delay early rehabilitation, possible complication development, perioperative mortality to the POSSUM scale, comorbidities
14 day after surgery

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Duration of femoral nerve blockade
Time Frame: on the day of surgery
The time of femoral nerve block
on the day of surgery
Blood glucose level
Time Frame: change in 0,1,2,3 days after surgery
The level of glucose in blood in mmol/l
change in 0,1,2,3 days after surgery

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Mean age
Time Frame: the day of surgery
Mean age in years
the day of surgery
Mean hospitalization time
Time Frame: from admission to hospital till 14 days after surgery
Mean hospitalization time in days
from admission to hospital till 14 days after surgery
Mean postoperative hospitalization time
Time Frame: change from 0 till 14 days after surgery
Mean postoperative hospitalization time in days
change from 0 till 14 days after surgery
Postoperative Mean Arterial Pressure (MAP)
Time Frame: change in 0,1,2,3 days after surgery
Postoperative Mean Arterial Pressure (MAP) measured in mmHg
change in 0,1,2,3 days after surgery
Postoperative pulse
Time Frame: change in 0,1,2,3 days after surgery
Postoperative pulse (x/min)) measured in x/min
change in 0,1,2,3 days after surgery
Postoperative saturation (Sp02) of the arterial blood
Time Frame: change in 0,1,2,3 days after surgery
Postoperative saturation (Sp02) of the arterial blood measured in %
change in 0,1,2,3 days after surgery
Physiological and Operative Severity Score for the enUmeration of Mortality and morbidity (POSSUM) morbidity
Time Frame: the day of the surgery
Physiological and Operative Severity Score for the enUmeration of Mortality and morbidity (POSSUM) morbidity measured in %
the day of the surgery
Physiological and Operative Severity Score for the enUmeration of Mortality and morbidity (POSSUM) mortality
Time Frame: the day of the surgery
Physiological and Operative Severity Score for the enUmeration of Mortality and morbidity (POSSUM) mortality measured in %
the day of the surgery
Physiological and Operative Severity Score for the enUmeration of Mortality and morbidity (POSSUM) physiological score
Time Frame: the day of the surgery
Physiological and Operative Severity Score for the enUmeration of Mortality and morbidity (POSSUM) physiological score measured in points (minimum 12, maximum 96)
the day of the surgery
American Society of Anesthesiology Score (ASA)
Time Frame: the day of the surgery
American Society of Anesthesiology Score (ASA), grade I-IV
the day of the surgery

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 (Actual)

June 1, 2019

Primary Completion (Actual)

January 1, 2020

Study Completion (Actual)

May 1, 2020

Study Registration Dates

First Submitted

November 21, 2020

First Submitted That Met QC Criteria

November 28, 2020

First Posted (Actual)

December 4, 2020

Study Record Updates

Last Update Posted (Actual)

December 4, 2020

Last Update Submitted That Met QC Criteria

November 28, 2020

Last Verified

November 1, 2020

More Information

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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