Sever?s disease is the most common cause of heel pain in children aged 9 to 14. Sever?s disease results from stress placed on the growth plate of the heel bone. An excessive amount of running or other activities can cause inflammation around the growth plate, which results in pain. Rest, ice and orthotics and proper shoes are usually prescribed.
A child is most at risk for this condition when he or she is in the early part of the growth spurt in early puberty. Sever?s disease is most common in physically active girls eight to ten years old and in physically active boys ten to twelve years old. Soccer players and gymnasts often get Sever?s disease, but children who do any running or jumping activity may be affected. Sever?s disease rarely occurs in older teenagers, because the back of the heel has finished growing by the age of fifteen.
Sever’s disease causes pain and tenderness in the back and bottom of the heel when walking or standing, and the heel is painful when touched. It can occur in one or both feet.
Physical examination varies depending on the severity and length of involvement. Bilateral involvement is present in approximately 60% of cases. Most patients experience pain with deep palpation at the Achilles insertion and pain when performing active toe raises. Forced dorsiflexion of the ankle also proves uncomfortable and is relieved with passive equinus positioning. Swelling may be present but usually is mild. In long-standing cases, the child may have calcaneal enlargement.
Non Surgical Treatment
Your physiotherapist will guide you and utilise a range of pain relieving techniques including joint mobilisations for stiff ankle or subtalar joints, massage or electrotherapy to assist you during this pain-full phase. Your physiotherapist will identify stiff joints within your foot and ankle complex that they will need to loosen to help you avoid overstress. A sign that you may have a stiff ankle joint can be a limited range of ankle bend during a squat manoeuvre. Your physiotherapist will guide you. Your foot arch is dynamically controlled via important foot arch muscles, which be weak or have poor endurance. These foot muscles have a vital role as the main dynamically stable base for your foot and prevent excessive loading through your plantar fascia. Any deficiencies will be an important component of your rehabilitation. Your physiotherapist is an expert in the assessment and correction of your dynamic foot control. They will be able to help you to correct your normal foot biomechanics and provide you with foot stabilisation exercises if necessary.
Stretching exercises can help. It is important that your child performs exercises to stretch the hamstring and calf muscles, and the tendons on the back of the leg. The child should do these stretches 2 or 3 times a day. Each stretch should be held for about 20 seconds. Both legs should be stretched, even if the pain is only in 1 heel. Your child also needs to do exercises to strengthen the muscles on the front of the shin. To do this, your child should sit on the floor, keeping his or her hurt leg straight. One end of a bungee cord or piece of rubber tubing is hooked around a table leg. The other end is hitched around the child’s toes. The child then scoots back just far enough to stretch the cord. Next, the child slowly bends the foot toward his or her body. When the child cannot bend the foot any closer, he or she slowly points the foot in the opposite direction (toward the table). This exercise (15 repetitions of “foot curling”) should be done about 3 times. The child should do this exercise routine a few times daily.