Sever's disease involves a lesion to the heel that appears mostly as a result of excessively twisting the ankle. The injury is particularly prevalent in children over 10 and other younger athletes because the heel bone, muscles and tendons are still developing - the bone faster than the muscles - and the condition strikes a growing part of the bone called the calcaneal apophysis. In older people an injury of this sort generally results in a stress fracture.
Sever?s disease is common, and typically occurs during a child?s growth spurt, which can occur between the ages of 10 and 15 in boys and between the ages of 8 and 13 in girls. Feet tend to grow more quickly than other parts of the body, and in most kids the heel has finished growing by the age of 15. Being active in sports or participating in an activity that requires standing for long periods can increase the risk of developing Sever?s disease. In some cases, Sever?s disease first becomes apparent after a child begins a new sport, or when a new sports season starts. Sports that are commonly associated with Sever?s disease include track, basketball, soccer, and gymnastics. Children who are overweight or obese are also at a greater risk of developing this condition. Certain foot problems can also increase the risk, including. Over pronating. Kids who over pronate (roll the foot inward) when walking may develop Sever?s disease. Flat foot or high arch. An arch that is too high or too low can put more stress on the foot and the heel, and increase the risk of Sever?s disease. Short leg. Children who have one leg that is shorter than the other may experience Sever?s disease in the foot of the shorter leg because that foot is under more stress when walking.
Sharp pain will be present in the affected heel (or both heels), especially while running or walking. Pain can be heightened following activity. The area will be tender to the touch and usually becomes inflamed or reddened. It may also be painful to press on the heel with a finger from the back or to squeeze the sides together; the latter is particularly common. You might notice stiffness in some of the surrounding muscles, making regular movements more difficult to achieve. This and the pain can manifest physically in abnormal practices like tiptoeing or limping. In some cases a lump can be detected on the back of the heel, though it may be so small as to defy detection.
Your Podiatrist or Physiotherapist will assist in diagnosing the injury and the extent of the damage. From this, they will develop a management plan which may include rest or activity modification, soft tissue treatment such as massage and stretching, correction of biomechanics through heel raises or orthoses and the progression through a series of specific strengthening exercises.
Non Surgical Treatment
The initial treatment is rest, relieve the pain and treat the underlying cause. The foot and ankle should be rested so that the apophysis it is not being continually ?injured?. A small heel (sorbothane heel insert) raise can used to raise the heel and take the stretch off the Achilles tendon. It may be sufficient to stop your child playing sport but some children require a short period of bed or couch rest. Some children find resting very difficult and require the use of braces or plasters or boots to slow them down. Using crutches is advised. Severs is usually caused by tight muscles. A stretching program should be followed usually supervised by a physiotherapist. The stretching program may need to be undertaken up to 5 times a day. If flat feet are a problems orthotics (insoles) should be used. The pain should be controlled by rest (limiting activity) and ice (icing the painful area 3-4 times a day - making sure the skin is not burnt), Simple pain killers can be used such as paracetamol as well as anti-inflammatory tablets and cream. Severs disease usually goes away with time. When your child stops growing, the pain and swelling should go away because the growing (weak) area fuses and becomes solid bone which is very strong.
The surgeon may select one or more of the following options to treat calcaneal apophysitis. Reduce activity. The child needs to reduce or stop any activity that causes pain. Support the heel. Temporary shoe inserts or custom orthotic devices may provide support for the heel. Medications. Nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, help reduce the pain and inflammation. Physical therapy. Stretching or physical therapy modalities are sometimes used to promote healing of the inflamed issue. Immobilization. In some severe cases of pediatric heel pain, a cast may be used to promote healing while keeping the foot and ankle totally immobile. Often heel pain in children returns after it has been treated because the heel bone is still growing. Recurrence of heel pain may be a sign of calcaneal apophysitis, or it may indicate a different problem. If your child has a repeat bout of heel pain, be sure to make an appointment with your foot and ankle surgeon.