What is the most common component of elbow dysplasia?

What is the most common component of elbow dysplasia?

• A. Fragmented medial coronoid process
• B. Lateral humeral condyle osteoarthritis
• C. Ununited anconeal process
• D. Radial head subluxation

Answer: (A)

The main idea here is that elbow dysplasia most often presents with fragmentation of the medial coronoid process. In many dogs, this inner portion of the ulna develops small fragments or degenerates, which disrupts the smooth articulation with the humerus. That damage leads to pain, reduced motion, and early osteoarthritis in the elbow. Other abnormalities—such as an ununited anconeal process, osteoarthritis of the lateral humeral condyle, or radial head subluxation—can occur in elbow dysplasia but are less common as the primary or most frequent defect. They may contribute to symptoms, but the fragmented medial coronoid process is the single most common component driving the condition.

The main idea here is that elbow dysplasia most often presents with fragmentation of the medial coronoid process. In many dogs, this inner portion of the ulna develops small fragments or degenerates, which disrupts the smooth articulation with the humerus. That damage leads to pain, reduced motion, and early osteoarthritis in the elbow.

Other abnormalities—such as an ununited anconeal process, osteoarthritis of the lateral humeral condyle, or radial head subluxation—can occur in elbow dysplasia but are less common as the primary or most frequent defect. They may contribute to symptoms, but the fragmented medial coronoid process is the single most common component driving the condition.