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. 2022 Mar 10;5(1 Suppl):e163(1-8).
doi: 10.1097/OI9.0000000000000163. eCollection 2022 Mar.

Animal models in compartment syndrome: a review of existing literature

Dillon C O'Neill  1 , Emily A Treu  1 , Chance McCutcheon  2 , Justin M Haller  3
Affiliations

Animal models in compartment syndrome: a review of existing literature

Dillon C O'Neill et al. OTA Int. .

Abstract

Objective: Extremity compartment syndrome (ECS) is a morbid condition resulting in permanent myoneural damage. Currently, the diagnosis of compartment syndrome relies on clinical symptoms and/or intracompartment pressure measurements, both of which are poor predictors of ECS. Animal models have been used to better define cellular mechanisms, diagnosis, and treatment of ECS. However, no standardized model exists. The purpose of this study was to identify existing animal research on extremity compartment syndrome to summarize the current state of the literature and to identify weaknesses that could be improved with additional research.

Methods: A MEDLINE database search and reverse inclusion protocol were utilized. We included all animal models of ECS.

Results: Forty-one studies were included. Dogs were the most commonly used model species, followed by pigs and rats. Most studies sought to better define the pathophysiology of compartment syndrome. Other studies evaluated experimental diagnostic modalities or potential treatments. The most common compartment syndrome model was intracompartment infusion, followed by tourniquet and intracompartment balloon models. Few models incorporated additional soft tissue or osseous injury. Only 65.9% of the reviewed studies confirmed that their model created myoneural injury similar to extremity compartment syndrome.

Conclusions: Study purpose, methodology, and outcome measures varied widely across included studies. A standardized definition for animal compartment syndrome would direct more consistent research in this field. Few animal models have investigated the pathophysiologic relationship between traumatic injury and the development of compartment syndrome. A validated, clinically relevant animal model of extremity compartment syndrome would spur improvement in diagnosis and therapeutic interventions.

Keywords: animal model; compartment syndrome; ischemia; muscle injury; reperfusion; review.

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Conflict of interest statement

The authors have no conflicts of interest to disclose.

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