What common condition can be treated with an SMO?

The choice of flexible pes planus as a condition that can be treated with a supramalleolar orthosis (SMO) is particularly fitting due to the design and functionality of the device. An SMO is specifically engineered to provide support to the subtalar joint and the midfoot, promoting better alignment and stability while allowing for some natural movement.

Flexible pes planus is characterized by a flattening of the arch of the foot that is noticeable when standing but may revert to a more normal arch when sitting. This condition can lead to discomfort or potential alignment issues further up the kinetic chain if not addressed. An SMO helps to reinforce the foot structure, encouraging proper foot mechanics during weight-bearing activities without being overly restrictive.

In contrast, other conditions listed, such as moderate hypertonia or severe equinovarus, typically require interventions that might include more rigid orthotic devices or structural modifications due to the severity of the muscle tone or specific deformities. Flaccid paralysis often necessitates different support strategies as the lack of muscular control can result in a need for more comprehensive accommodations rather than the subtle supportive role of an SMO. Thus, for the treatment of flexible pes planus, the SMO serves as an effective solution, helping to