In vitro evaluation of nonrigid support systems for the equine metacarpophalangeal joint.

The study assesses the effectiveness of different types of external support systems for horse joints, particularly the metacarpophalangeal (MCP) joint. The study found that a contoured splint and a Dalmar tendon support boot were most useful for managing tendon or ligament injuries and during rehabilitation.

Objective of the study

• The main goal of this research was to determine the efficacy of different nonrigid support systems for the equine metacarpophalangeal joint in resisting extension.

Methodology

• The researchers used seven forelimbs of deceased horses to determine the effectiveness of various support techniques, including a simple gamgee bandage, a 3-layered bandage with and without a contoured palmar splint, a neoprene exercise boot, and an innovative carbon fibre composite exercise boot (Dalmar tendon support boot).
• Each of these support systems was tested for their ability to resist MCP joint extension under simulated loading conditions.

Results

• The findings of the study indicate that neither the gamgee bandage nor the neoprene exercise boot offered significant resistance to MCP joint extension.
• The 3-layered bandage and the contoured splint were found to provide significant support at MCP joint angles greater than or equal to 245 and 230 degrees, respectively.
• The Dalmar tendon support boot successfully resisted MCP extension at angles greater than or equal to 245 degrees and 225 degrees, depending on the setting used.

Implications

• The study suggests that the use of a contoured splint and the Dalmar tendon support boot are most efficient in managing tendon or ligament injuries in horses and during post-injury rehabilitation.
• The research provides valuable insights for veterinarians and others involved in the care of horses, informing them about the most effective forms of joint support during recovery from injury.