Abstract

Aims and objectives: The aim of this integrative review is to provide current, evidence-based anesthetic recommendations for the use of clonidine as an adjuvant to bupivacaine for patients undergoing total knee arthroplasty (TKA) under spinal anesthesia.

Methods: Articles published between 1993 and 2018 were critically appraised for validity and reliability of the studies. It is important to note that literature was searched for publications between 1993 and 2022, however nothing relevant to this topic was published between 2019-2022.

Results: Clonidine is a selective partial alpha 2 receptor agonist.1 When administered in the intrathecal space, clonidine has been shown to be an effective analgesic for pain associated with surgery. Spinal clonidine causes a 30% prolongation of sensory and motor block of local anesthetics.1 Intrathecal clonidine appears to have anti-hyperalgesia properties.1 There is evidence to suggest that clonidine intensifies spinal analgesia from bupivacaine, thereby reducing the incidence of tourniquet pain. In addition to providing intraoperative analgesia, there is evidence to suggest that intrathecal clonidine reduces postoperative pain scores.

Conclusion: Based on this integrative review it appears that the use of intrathecal clonidine results in overall increased density and duration of spinal anesthesia and decreased postoperative pain scores. However, additional evidence is necessary in order to develop an exact guideline of intrathecal clonidine dosages to achieve the desired effects. Therefore, the author recommends further research on the use of intrathecal clonidine as an adjuvant to bupivacaine in patients undergoing TKA under spinal anesthesia.

Authors

Jennifer Maloy

Author Details

Jennifer Maloy, DNAP, CRNA

Sigma Membership

Non-member

Type

Other Graduate Paper

Format Type

Text-based Document

Study Design/Type

Literature Review

Research Approach

Translational Research/Evidence-based Practice

Keywords:

Intrathecal Clonidine, Total Knee Athroplasty, Mechanism of Action, Tourniquet Pain, Urinary Retention, Pain Reduction, Opioid Consumption

Advisor

Pecka, Shannon

Degree

Doctoral-Other

Degree Grantor

Bryan College of Health Sciences

Degree Year

2023

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

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Review Type

Faculty Approved: Degree-based Submission

Acquisition

Proxy-submission

Full Text of Presentation

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