Complete fractures of the third metacarpal or metatarsal bone in horses: 25 cases (1980-1996).

This research focuses on evaluating the treatment methods of third metacarpal (MC) or metatarsal (MT) bone fractures in horses and identifying factors that could impact the recovery outlook. The study finds that despite common beliefs, such fractures do not always lead to a poor prognosis and certain efforts like proper case selection, strong fracture stabilization and infection prevention can boost success rates.

Methodology

• The researchers conducted a retrospective case study on 25 horses with fractures in the third MC or MT bone. These fractures were treated using internal fixation, external coaptation, or both.
• Medical records from the Veterinary Medical Data Base of horses treated for these specific fractures at Texas A&M University from 1980 to 1994 and Purdue University from 1980 to 1996 were reviewed for the study.
• Information regarding the animal’s individual characteristics, results of physical and radiographic examinations, treatment details, and subsequent outcome were collected meticulously.
• For those horses which had radiographic evidence of bone healing, long-term follow-up information was obtained via telephonic contact with the horse owners or the veterinarians who referred them to the study.

Results

• The researchers found that factors such as the horse’s age, sex, weight, and specific limb affected did not have an evident relation to the outcome. But, it was noted that the horses affected by such fractures were generally younger than the overall hospital population.
• Out of the total, 17 horses had open fractures when referred to the study. Post-surgery, the most frequent complication was infection, with open fractures having a higher likelihood of getting infected.
• Nonunion in an infected fracture turned out to be the most frequent reason for postoperative failure. This occurred in 7 horses from the study group.
• Long-term follow-up was available for 16 horses, and out of these, 11 had not experienced any complications linked to the surgical repair of their fractures.

Conclusion

• Despite the common notion, the researchers concluded that fractures of the MC or MT bone in horses do not always lead to a grim prognosis.
• They highlighted that making the right selection of cases, ensuring firm stabilization of the fracture, along with measures to prevent or treat any post-surgery infection, can significantly enhance the success rate.