Imaging features of avulsion injuries.

Area of Science:

• Orthopedics
• Radiology
• Sports Medicine

Background:

• Avulsion injuries are frequent in organized sports, particularly among adolescents.
• These injuries can present imaging findings that mimic serious conditions like neoplasm and infection.

Purpose of the Study:

• To evaluate imaging features of acute and chronic avulsion injuries across various joints.
• To aid in distinguishing avulsion injuries from more severe pathologies.

Main Methods:

• Radiographic evaluation of acute, subacute, and chronic avulsion injuries.
• Assessment of computed tomography (CT) and magnetic resonance (MR) imaging utility.

Main Results:

• Acute avulsion injuries may show bone fragments; subacute injuries can exhibit aggressive lysis and sclerosis.
• Chronic injuries may present as bone masses, resembling neoplastic or infectious processes.
• CT is useful for equivocal findings or non-acute phases; MR excels in soft tissue evaluation.

Conclusions:

• Characteristic imaging features aid in diagnosing avulsion injuries.
• Familiarity with musculotendinous anatomy is crucial for accurate interpretation.
• Distinguishing avulsion injuries from neoplasm and infection is key for appropriate management.