Treatment of a second carpal bone fracture by removal under ultrasonographic guidance in a horse.

This research involves the removal of an unusual second carpal bone fracture in a horse using ultrasonographically assisted, minimally invasive technique. Despite issues of osteoarthritis and partial involvement of the medial collateral ligament, the horse returned to its normal activities after treatment.

Background of the Study

• The study examines a unique case of a second carpal bone fracture (C2) in an 11-year old crossbred Warmblood gelding (a type of horse). This particular type of fracture was unusual due to its location at the palmaromedial aspect of the bone, and it spanning the height of C2.

Methodology

• The researchers used an ultrasonographically assisted, minimally invasive arthrotomy technique to remove the slab (fracture fragment) from the horse’s carpal.
• The horse was first situated in a manner conducive to the operation. The fracture area was identified using accurate ultrasonography.
• Ultrasonographically guided needles were used to demarcate the area around the fracture.
• Once the fracture was properly marked, the slab was removed through an arthrotomy procedure.

Results and Conclusion

• The removal of the fracture fragment was successful via the minimally invasive arthrotomy procedure.
• Post-treatment, the horse returned to its normal activities and experienced no apparent distress or discomfort, suggesting that the operation was successful.
• The researchers concluded that perioperative ultrasonography was an effective method for conducting such operations, even in situations where previously unforeseeable challenges could arise, such as unusual fracture locations, pancarpal osteoarthritis, or involvement of the medial collateral ligament.

Implications of the Study

• The study provides evidence that ultrasonographic guidance can be used to accurately deal with C2 articular bony fragments that might not be visible using arthroscopy.
• This approach is particularly useful in minimizing the operative invasion, which can lead to quicker recovery times for the animal.