Anatomy of the tarsal tendons of the equine tibialis cranialis and peroneus tertius muscles.

This research article explores the structure and attachment points of tendons related to the tibialis cranialis and peroneus tertius muscles in horses. Particularly, it proposes that the peroneus tertius muscle could be involved in hock lameness, a condition that affects horses’ mobility.

Overview of Methodology

• This study used a dissection procedure to examine the tendons of the tibialis cranialis and peroneus tertius muscles.
• The study focused on examining the precise areas of tendon attachment as well as the arrangement of fibers within the tendons in a detailed manner.

Tendons’ Structure and Attachments Points

• The research focused on the dorsal and medial tendons of the tibialis cranialis, as well as the superficial lateral, deep lateral, dorsal, and medial tendons of the peroneus tertius (PT).
• It was observed that the dorsal and medial tendons of the PT have a direct attachment into the periosteum (a membrane that covers bones) of the central and 3rd tarsal bones and the 3rd metatarsal bone.

Implications on Hock Lameness

• The findings of this study suggested that the peroneus tertius muscle may play a role in the development of hock lameness in horses.
• Hock lameness is a common cause of hind limb lameness in horses and can significantly affect their performance.
• The direct connection of certain tendons to bones might influence the development of this condition. Their specific direction and location of attachment could increase stress on certain areas, leading to potential injury and lameness.

Conclusion

• The details from this study contribute to a better understanding of the equine musculoskeletal system, particularly in relation to hock lameness.
• The observed connection of the PT muscle with the key bones may present a possible area for further research and intervention in managing hock lameness in horses.