Which type of cast would you expect to restrict lateral movement of the ankle while allowing normal flexion?

The type of cast that effectively restricts lateral movement of the ankle while allowing for normal flexion is known as a Delbert cast. This specific casting technique is designed to provide stability to the ankle joint, particularly focusing on limiting movements that could cause further injury, such as inversion or eversion, which are lateral movements of the foot. Additionally, the Delbert cast maintains the functional range of motion in flexion, allowing the patient to perform necessary activities while still providing sufficient support.

Understanding the particular purpose of each type of cast is vital in orthopedics. Other casting options may not prioritize lateral stabilization with the same degree of effectiveness or allow for the desired motion freely. For example, casts like the Munster cast focus on immobilizing the fractures in the forefoot while restricting the ankle's mobility, which could limit flexion. Similarly, a Dehne cast is often used for immobilization purposes, limiting mobility that may not be as selective in allowing flexion. Serial casts are used primarily for progressive conditions and involve changing casts over time to gradually improve limb positioning, but they are not designed specifically for restricting lateral movement while allowing flexion.

In summary, the Delbert cast uniquely offers the desired balance of support and mobility, making it the appropriate choice