Moore KL, Agur AMR, Dalley AF. This chapter will focus on the shaft of the tibia and fibula with respect to fracture management and leg length discrepancy. This is called talar shift and the ankle joint is unstable. Typical MRI appearances of a stress fracture, although in an uncommon location - the inciting events for this patient are not known. ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. Loading images... Oblique Further more clearly delineated the distal fibular fracture (Weber B) and also demonstrate a posterior malleolus fracture. In this article we will focus on detection of fractures, that may not be so obvious at first sight. The lateral malleolus is longer, larger and more posterior than the medial malleolus. ADVERTISEMENT: Supporters see fewers/no ads, Please Note: You can also scroll through stacks with your mouse wheel or the keyboard arrow keys. See Maisonneuve fracture. Bone scintigraphy 2 weeks later shows stress fractures of the distal fibula on both sides. Last's anatomy, regional and applied. They tend to causes fractures that are higher up the fibula and the rotational component of the injury may cause syndesmosis tears. Mathes S, Nahai F. Reconstructive Surgery; Principles, Anatomy and Technique. The ankle is a pseudo-ball-and-socket joint; the talus is the ball and the distal tibia and fibula act as the socket. Fractures of the lateral and medial malleolus are common in soccer and basketball players. The medial posterior surface is concave. The syndesmosis is a strong ligament that pulls the tibia and fibula together just above the distal tibiofibular joint. Two further secondary ossification centers are for the upper and lower fibula end. Its lower third surface faces posteriorly. Distal Tibia Ankle Fracture Lateral Malleolus Physeal Fracture Distal Fibula ... Ogden JA, McCarthy SM: Radiology of post-natal skeletal development. Design: Retrospective Case Series. Distally it turns laterally to form the posterior wall of the triangle. Distal fibula fractures are the most common type at the ankle and are usually the result of an inversion injury with or without rotation. Hence on a true lateral radiograph of the ankle, it is posterior to the medial malleolus. Inclination of this surface can vary from horizontal to 45º 2. It is commonly raised as a flap for reconstructive surgery. The lateral part of the fibular neck accommodates the common peroneal nerve. It is not directly involved in the transmission of weight but is important for ankle stability and acts as a source for numerous muscle attachments. Avulsion fractures of the proximal fibula may occur from a blow to the anteromedial tibia in knee extension or knee hyperextension with an internally rotated tibia. ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. Management decisions are based on the interpretation of the AP and lateral X-rays. Cited 2016. Publicationdate 2012-08-23. 2009: 88-94. Young patients present following injuries in relatively high-energy trauma (e.g. Further ossification centers may occur. Patients should have a plain film, if there is malleolar tenderness and: An ankle x-ray (AP and lateral views) are usually all that is needed to make a diagnosis.