Shoulder joint luxation in large animals: 14 cases (1976-1997).

The research article focuses on the diagnosis, treatment, and outcomes for large animals with shoulder joint luxations, analyzing data collected over a span of two decades.

Study Methods

• The study makes use of a retrospective approach, using data collected over 21 years, from 1976 to 1997.
• It includes a diverse range of large animals: 5 horses, 3 goats, 1 calf, 1 sheep, 1 Himalayan tahr, 1 pot-bellied pig, 1 reindeer, and 1 white-tailed deer.
• Information collected from medical records and radiographs included patient characteristics, medical history, physical examination results, type of dislocation, method of treatment, and the eventual outcome.
• The authors also followed up with pet owners and referring veterinarians for additional data.

Key Findings

• The study found an overrepresentation of goats, sexually intact male animals, and animals less than one year old compared to the general hospital population during the studied period.
• Closed reduction, a non-surgical method of resetting a dislocated bone, was attempted on three animals and was successful in one case.
• Open reduction with internal stabilization, which is a surgical intervention, was attempted on four animals, including one that had initially attempted closed reduction. This approach resulted in long-term joint stabilization in three animals.

Treatment Outcomes and Prognosis

• Despite the success of treatments in some cases, the overall results were found to be poor, with issues like osteoarthritis and chronic lameness being significant challenges.
• Three animals received no treatment, and the poor prognosis led to the euthanization of five animals.
• The authors concluded that large animals with shoulder dislocations and additional fractures tended to have a poorer prognosis than those with only shoulder joint luxation.