DPM Sports Medicine & Athletic Foot Injuries Flashcards

Peroneal tendon subluxation is typically caused by injury to which structure?

Answer: Superior peroneal retinaculum

The superior peroneal retinaculum restrains the peroneal tendons in the retromalleolar groove; its rupture or avulsion allows tendon subluxation.

Which condition describes pain along the medial tibial border due to repetitive stress, common in runners?

Answer: Medial tibial stress syndrome (shin splints)

Medial tibial stress syndrome (shin splints) involves periostitis along the posteromedial tibial border from overload of the tibialis posterior and soleus attachments.

A Lisfranc injury involves disruption at which anatomical region?

Answer: Tarsometatarsal joint complex

Lisfranc injuries involve ligamentous or bony disruption of the tarsometatarsal joint complex, often missed on initial evaluation.

Which finding on weight-bearing radiograph is the key diagnostic sign of a Lisfranc injury?

Answer: Widening between the first and second metatarsal bases

Widening of more than 2 mm between the first and second metatarsal bases on weight-bearing X-ray is pathognomonic for Lisfranc ligament disruption.

Which vitamin deficiency is most strongly associated with increased risk of stress fractures in athletes?

Answer: Vitamin D

Vitamin D deficiency impairs calcium absorption and bone mineralization, significantly increasing stress fracture risk in athletes.

What is the primary concern when treating plantar fasciitis with corticosteroid injection?

Answer: Plantar fascia rupture and fat pad atrophy

Repeated corticosteroid injections into the plantar fascia risk plantar fascia rupture and fat pad atrophy, leading to chronic heel pain.