Private company

Dynasplint Systems

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Company based in Severna Park1

Dynasplint Systems, Incorporated (DSI) is a company that designs, manufactures and sells dynamic splints that are used for range of motion rehabilitation. The corporate headquarters are located in Severna Park, Maryland and it is considered a major employer in Anne Arundel County. Products are Made in the US in Stevensville, Maryland.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Dynasplint Systems, Incorporated (DSI) is a company that designs, manufactures and sells dynamic splints that are used for range of motion rehabilitation. The corporate headquarters are located in Severna Park, Maryland and it is considered a major employer in Anne Arundel County. Products are Made in the US in Stevensville, Maryland. There is a national sales force throughout the US as well as a presence in Canada and Europe.2

The story

Dynasplint was founded in 1981 by physical therapist, George R. Hepburn, PT and is the pioneer and recognized market leader in dynamic splinting. The need was recognized for longer periods of stretching to keep range of motion (ROM) gains made in therapy and to make further gains to resolve joint stiffness. In 1981, the Dynasplint was conceived to continue the work of the physical therapist at home.

This spring-loaded dynamic splint is worn at rest for six to eight hours at a time, and employs adjustable low load prolonged duration stretch technology (LLPS) to achieve a permanent change in shortened connective tissues. Conversely, when a joint is stretched quickly by high intensity short duration (HISD) some range of motion may be gained but rebounding will occur.

From Wikipedia’s article on Dynasplint Systems, shared under CC BY-SA 4.0.4

Products and brands

The Equine/Camelid and Small Animal Dynasplint Systems aids in treating congenital and acquired angular and flexural deformities. Congenital deformities are present at birth, and acquired deformities develop at some stage of the growing period. Acquired deformities manifest differently depending on the age of the horse.

The Equine Dynasplint systems are also being integrated into treatments for laxity and suspensory ligament injuries. Suspensory ligament injuries are common in athletic horses. The suspensory apparatus includes the suspensory ligament that extends down from the back of the knee to the fetlock joint, the two sesamoid bones at the back of the fetlock joint, and the various ligaments connecting these bones to each other and to the pastern bone. These structures are crucial for supporting the horse's weight and acting as shock absorbers for the leg.

From Wikipedia’s article on Dynasplint Systems, shared under CC BY-SA 4.0.4