Abstract
Category:TraumaIntroduction/Purpose:Improved body-armor and mine resistant vehicles have improved battlefield survivability, but now nearly 50% of casualties have a musculoskeletal extremity injury. The purpose of the current study was to evaluate current SAM splint techniques utilized for a distal Tib/Fib fracture verse a new one-step spray on foam immobilization technique.Methods:A cadaveric model with a distal third combined tibia-fibula fracture was used for testing. The specimens were placed in an austere environment and participants immobilized the injury with standard equipment (SAM splint, 6in Ace wrap). The test group immobilized the injury with a one-step in-situ spray on foam splint.Results:Twenty-one military Joint Special Operations Command (JSOC) medical personnel (11 Medics, 4 PAs, 6 Physicians) participated with an average of 7.7 years as a provider and 25.4 months deployed in a combat theater. Each participant was observed and scored by a single orthopedic foot and ankle surgeon using a Likert scale based on 10 splinting criteria. Standard SAM splinting resulted in an average score of 32.2 (range, 5-50), with significant deficiencies in fracture traction (1/5), fracture motion (2.9/5), protection of neurovascular structures (3/5), and soft tissue manipulation (3/5). The average time to completion was (203 sec), with one splint failure. The spray on foam splinting technique yielded a significantly higher score of 48.5 while completing the task significantly faster at 68 sec with no failures.Conclusion:JSOC medical personnel demonstrated overwhelming success in immobilizing a complex extremity fracture with a SAM splint. Testing demonstrated the inherent inability of the SAM splint to provide longitudinal traction while simultaneously allowing excessive fracture motion and potential injury to the soft tissues. In addition, our spray-on foam proof of concept technique eliminated motion and provided traction by allowing in-situ application with adequate rigidity.
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