Sever’s disease (calcaneal apophysitis) is a common condition affecting active children between 8 and 14 but occasionally as young as 6. The condition presents as pain at the back and side of the calcaneus, where the calf muscles attach to the heel at the growth plate (apophysis). It is said to account for 2-16% of musculoskeletal attendance of children at sports clinics.
When the muscles and tendons pull at the growth plate, the repeated motion can cause inflammation and swelling in this region, resulting in pain at the back of the heel. With management, symptoms often resolve within a few months and rarely causes lasting problems.
The cause of Severs disease is unknown but is linked to growth spurts, particularly during puberty. During growth, the muscles and bones grow at different rates, which can cause the muscles and tendons to become tight, pulling at the growth plate. Symptoms can be exacerbated by sports and activities as these can require increased demand on the muscles.
It often presents as pain or tenderness in one or both heels. You may also notice:
The symptoms typically improve with rest.
Diagnosis does not usually require testing or a scan. A Qualified healthcare professional will consider age and lifestyle and then complete a physical assessment, focusing on the heel.
There are various approaches to the management of Severs, which can include:
Physiotherapy is often the starting point for a home exercise program to stretch and strengthen the calf muscles. By stretching and mobilizing the large calf muscles, the traction or pull of the Achilles on the heel bone will be reduced.
Orthotic interventions to alter the biomechanical factors is often suggested to provide pain relief. These often either attempt to cushion the heel or alter the biomechanical function of the foot.
Cushioning is thought to help by reducing the repetitive forces at impact when the foot strikes the ground. Often this takes the form of a gel or silicone heel cup.
Silicone Heel Pad
Heel Cups
Functional Foot Orthoses can also be used to attempt to alter the foot's function. A foot that is pronated with a valgus calcaneus can influence the forces applied by the Achilles tendon. It is felt that ensuring an efficient windlass mechanism during stance can decrease the Achilles pull. These can either be Custom made, modular or Stock insoles and will be dependent on clinical assessment as to what is most appropriate.
Sense Insoles
By providing support to the arch and influencing the foot's position, these forces can be reduced to a more tolerable level with the aim to reduce pain.
If you wish your child to be assessed by one of our clinicians, we offer clinics at our Head Office in Glasgow and a satellite clinic in Edinburgh.