Combined Intrathecal Dexmedetomidine and Adductor Canal Block for Analgesia After Total Knee Arthroplasty

NCT ID: NCT06837844

Last Updated: 2025-02-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

75 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-02-20

Study Completion Date

2025-08-01

Brief Summary

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The aim of this work is to evaluate the effect of combined intrathecal dexmedetomidine and adductor canal block for analgesia after total knee arthroplasty (TKA).

Detailed Description

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Effective postoperative pain management is essential for improving patient outcomes following knee surgery, facilitating early mobilization, and reducing the risk of complications.

The adductor canal block (ACB) is a nerve block of Hunters canal, which includes the saphenous and vastus medialis nerves. Additionally, other sensory nerves, such as the femoral nerve, medial cutaneous nerve, and both the anterior branch and terminal end of the posterior branch of the obturator nerve to some extent as it enters the distal part of the canal are blocked by the ACB.

Dexmedetomidine (DXM) a highly selective α2 adrenergic agonist with sedative, anxiolytic, analgesic, sympatholytic and antihypertensive effects.

Conditions

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Intrathecal Dexmedetomidine Adductor Canal Block Analgesia Total Knee Arthroplasty

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Group ITD

Patients will receive 15mg in 3ml hyperbaric bupivacaine intrathecally with 5 μg in 0.5ml dexmedetomidine + adductor canal block using 20 ml saline 0.9% at the end of surgery

Group Type EXPERIMENTAL

Intrathecal Dexmedetomidine

Intervention Type DRUG

Patients will receive 15mg in 3ml hyperbaric bupivacaine intrathecally with 5 μg in 0.5ml dexmedetomidine + adductor canal block using 20 ml saline 0.9% at the end of surgery

Group ACB

Patients will receive 15mg in 3ml hyperbaric bupivacaine intrathecally with 0.5ml saline 0.9% + adductor canal block using 20 ml bupivacaine 0.25% at the end of surgery.

Group Type ACTIVE_COMPARATOR

Adductor Canal Block

Intervention Type DRUG

Patients will receive 15mg in 3ml hyperbaric bupivacaine intrathecally with 0.5ml saline 0.9% + adductor canal block using 20 ml bupivacaine 0.25% at the end of surgery.

Group ITD+ACB

Patients will receive 15mg in 3ml hyperbaric bupivacaine intrathecally with 5 μg in 0.5ml dexmedetomidine + adductor canal block using 20 ml bupivacaine 0.25% at the end of surgery.

Group Type EXPERIMENTAL

Intrathecal Dexmedetomidine + Adductor Canal Block

Intervention Type DRUG

Patients will receive 15mg in 3ml hyperbaric bupivacaine intrathecally with 5 μg in 0.5ml dexmedetomidine + adductor canal block using 20 ml bupivacaine 0.25% at the end of surgery.

Interventions

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Intrathecal Dexmedetomidine

Patients will receive 15mg in 3ml hyperbaric bupivacaine intrathecally with 5 μg in 0.5ml dexmedetomidine + adductor canal block using 20 ml saline 0.9% at the end of surgery

Intervention Type DRUG

Adductor Canal Block

Patients will receive 15mg in 3ml hyperbaric bupivacaine intrathecally with 0.5ml saline 0.9% + adductor canal block using 20 ml bupivacaine 0.25% at the end of surgery.

Intervention Type DRUG

Intrathecal Dexmedetomidine + Adductor Canal Block

Patients will receive 15mg in 3ml hyperbaric bupivacaine intrathecally with 5 μg in 0.5ml dexmedetomidine + adductor canal block using 20 ml bupivacaine 0.25% at the end of surgery.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Age from 18 to 75 years.
* Both sexes.
* American Society of Anesthesiology (ASA) physical status I-II.
* Scheduled for total knee arthroplasty under spinal anesthesia.

Exclusion Criteria

* Patients with neurological or intellectual disability.
* History of allergy to local anesthetics or dexmedetomidine .
* Infection at the injection site.
* Prolonged use of analgesic or sedative medications.
* Coagulation abnormalities.
* Pregnancy.
* Obesity \[body mass index (BMI) \> 30 kg/m2\].
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Kafrelsheikh University

OTHER

Sponsor Role lead

Responsible Party

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Sherif Kamal Arafa

Assistant Professor of Anesthesiology, Surgical Intensive Care and Pain Management Department, Faculty of Medicine, KafrElsheikh University, KafrElsheikh, Egypt.

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Kafrelsheikh University

Kafr ash Shaykh, Kafrelsheikh, Egypt

Site Status RECRUITING

Countries

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Egypt

Central Contacts

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Sherif K Arafa, MD

Role: CONTACT

00201005714014

Facility Contacts

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Sherif K Arafa, MD

Role: primary

00201005714014

Other Identifiers

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MKSU 50-1-7

Identifier Type: -

Identifier Source: org_study_id

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