Peroneus Brevis Tendon Variant Insertion on the Calcaneus.

Area of Science:

• Orthopedics
• Radiology
• Anatomy

Background:

• The peroneus brevis tendon typically inserts at the lateral aspect of the fifth metatarsal base.
• Anatomical variations can influence foot and ankle biomechanics and pain presentation.

Observation:

• A case study of a 24-year-old male with non-traumatic ankle pain revealed an unusual insertion of the peroneus brevis tendon.
• Magnetic resonance imaging (MRI) confirmed the tendon's insertion on the calcaneal peroneal tubercle.

Findings:

• The study identified a congenital variant insertion of the peroneus brevis tendon onto the calcaneal peroneal tubercle.
• This variant was observed in one additional case during a review of 200 ankle MRI examinations.
• Absence of the peroneus brevis tendon distal to the calcaneus was noted in the primary case.

Implications:

• Understanding this peroneal tendon variant is crucial for accurate diagnosis of non-traumatic ankle pain.
• Radiologists and orthopedic surgeons should consider this anatomical variation during imaging and clinical assessment.
• This variant may necessitate specific management strategies for associated ankle pain and dysfunction.