Bilateral patellar agenesis in dog: A case report

Area of Science:

• Veterinary Medicine
• Orthopedics
• Genetics

Background:

• Bilateral patellar agenesis is an extremely rare congenital condition.
• It is characterized by the absence of both patellas, potentially leading to secondary bone, muscle, and postural alterations.
• Hypotheses suggest a genetic basis with dominant inheritance patterns.

Observation:

• This case report focuses on a mixed-breed male puppy diagnosed with bilateral patellar agenesis.
• Diagnostic evaluation was based on imaging examinations.
• The condition has not been previously documented in the canine species.

Findings:

• The puppy presented with bilateral patellar agenesis, a condition previously unreported in dogs.
• Imaging revealed the absence of both patellas, indicating a significant developmental anomaly.
• Associated skeletal and muscular alterations were noted, consistent with secondary changes.

Implications:

• This report establishes the first documented instance of bilateral patellar agenesis in canines.
• It highlights the potential for genetic factors and developmental abnormalities in canine skeletal development.
• Further research into canine congenital conditions and their genetic underpinnings is warranted.