|
Year |
2002 |
|---|---|
|
Question Number |
222. |
|
Category |
Foot and Ankle |
Question
A 14-year-old girl sustains an injury to the ankle region in a fall while snowboarding. An axial CT scan is shown in Figure 63. Which of the following ligaments is attached to the fracture fragment?
1- Deltoid
2- Anterior tibiofibular
3- Anterior talofibular
4- Posterior tibiofibular
5- Posterior talofibular
Figures
Answer (click for answer)
Preferred Response: 2
The CT scan shows a fragment of bone avulsed off the anterior lateral portion of the distal tibia. This is the origin of the anterior tibiofibular ligament.
Ligament Origin Insertion
Deltoid: Tibionavicular Med Mal Navicular tuberosity
Tibiocalcaneal Med Mal Sustentaculum tali
Posterior Tibiotalar Med Mal Inner side of talus
Deep Med Mal Medial surface of talus
Anterior tibiofibular Ant Lat Tibia Anterior Fibula (Lat Mal)
Anterior talofibular Lat Mal Transversely to anterior talus
Posterior tibiofibular Post Lat Tibia Posterior Fibula (Lat Mal)
Posterior talofibular Lat Mal Transversely to posterior talus
Reference: Crawford AH: Fractures and dislocations of the foot and ankle, in Green DP, Swiontkowski MF (eds): Skeletal Trauma in Children. Philadelphia, PA WB Saunders, 1994, pp463-466.
Nunley JA: Fractures and fracture-dislocations of the ankle, in Coughlin MJ, Mann RA (eds): Surgery of the Foot and Ankle, ed 7. St Louis MO, Mosby Publishers, 1999, p 1407.