Scintigraphy for diagnosis of avulsions of the origin of the suspensory ligament in horses: 51 cases (1980-1993).

The research focuses on exploring the usefulness of scintigraphy and radiography in the diagnosis of avulsions of the origin of the suspensory ligament in horses by comparing initial and retrospectively reviewed images.

Introduction and Method

• The analysis involved a review of medical records of 34 horses diagnosed with avulsion of the suspensory ligament that were admitted to a veterinary teaching hospital between the years 1980 and 1993.
• The research team compared initial findings as reported in the medical records to a retrospective review of the images in order to evaluate the effectiveness of scintigraphy and radiography.
• Another set of 30 horses were used as controls; they had scintigraphic lesions of a certain area, but had not been diagnosed with avulsions of the suspensory ligament.

Findings

• The scintigraphy procedure, which detects inflamed or damaged parts of the body by injecting a radioactive substance and using a scanner to produce image, revealed increased uptake in all horses sampled.
• However, radiographic evaluation, a technique that uses radiation to view the interior of an object, was only able to suggest avulsion in 67% of the horses initially and 86% on retrospective review.

Interpretation and Conclusions

• The study found the interpretation of scintigraphy to be more repeatable and sensitive as a diagnostic method compared to radiography.
• Although scintigraphy was observed to be more effective in identifying inflammation within a specific region, it could not independently confirm a diagnosis of avulsion without concurrent radiography.
• The specificity of scintigraphy in the diagnosis of avulsion of the suspensory ligament was determined to be only 41% based on the results of this study. Therefore, it seems that a combination of both diagnostic methods is needed to ensure accurate diagnosis.