Kohler disease

What causes Kohler disease?

The exact underlying cause of Kohler disease is unknown. However, some scientists suspect that it may be caused by excessive strain on a certain bone of the foot (tarsal navicular bone) and its associated blood vessels before the bone is completely ossified (hardened).

Bone ossification usually begins at age 18-24 months in girls and at age 24 to 30 months in boys. As the child grows, their foot is required to support more weight. Ossification of the tarsal navicular bone often occurs more slowly than the other bones of the foot. Consequently, surrounding bones may compress it and its blood vessels resulting in osteonecrosis and ischemia (a loss of blood supply).

Last updated on 05-01-20

How is Kohler disease diagnosed?

A diagnosis of Kohler disease is suspected based on the presence of characteristic signs and symptoms. An x-ray of the foot can be used to confirm the diagnosis and evaluate the progression of the condition.

Last updated on 05-01-20

Is Kohler disease hereditary?

The exact underlying cause of Kohler disease is currently unknown. Although some scientists have suggested that genetic factors may play a role in the development of Kohler disease, no disease-causing gene has been identified.

Last updated on 05-01-20

How common is Kohler disease?

Kohler disease is considered a rare condition. To our knowledge, there are currently no accurate estimates of its prevalence. The condition is much more common in boys than girls. However, girls with this condition are often younger than affected boys; this is presumably due to the earlier onset of ossification (the hardening of bones) in girls.

Last updated on 05-01-20

What is osteochondrosis?

Kohler disease is considered a type of osteochondrosis, which refers to a group of conditions that affect immature skeletal systems. In people affected by osteochondrosis, an ossification center undergoes degeneration (breakdown) followed by calcification. An ossification center is a point within a developing bone where bone formation (ossification) begins. Osteochondrosis most commonly affects the epiphyses of long bones in children.

Last updated on 05-01-20

What is Kohler disease?

Kohler disease is a condition that affects a bone at the arch of the foot called the tarsal navicular bone. X-rays show that this bone is initially compressed and later breaks into pieces before healing and hardening back into bone. It occurs most frequently in children between the ages of 5 and 10 years. Signs and symptoms of the condition include swelling, redness and/or tenderness of the affected foot which can lead to a limp or abnormal gait (style of walking). Although the exact underlying cause of Kohler disease is unknown, some scientists suspect that it may be caused by excessive strain on the tarsal navicular bone and its associated blood vessels before the bone is completely ossified (hardened). The condition typically resolves on its own with or without treatment; however, pain relievers, rest, avoidance of weight-bearing activities, and/or casting may be recommended to help manage symptoms.

Last updated on 05-01-20

What is osteonecrosis?

Osteonecrosis is a medical term that refers to bone death caused by reduced blood flow to the bones of the joints. This condition can occur in virtually any bone of the body; however, the upper leg, upper arm, knee, shoulder and ankle are the most commonly affected. Although men and women of all ages can develop this condition, it generally occurs in people between the ages of thirty and fifty.

The National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), part of the National Institutes of Health (NIH), offers printed materials on osteonecrosis which includes information on its symptoms, causes, and treatment. You can view this information at the link below.
http://www.niams.nih.gov/Health_Info/Osteonecrosis/osteonecrosis_ff.asp

More information on osteonecrosis can be found at the following link from MedlinePlus, the National Library of Medicine Web site designed to help you research your health questions.
http://www.nlm.nih.gov/medlineplus/ency/article/007260.htm

Last updated on 05-01-20

What is the long-term outlook for people with Kohler disease?

The long-term outlook (prognosis) for people with Kohler disease is usually excellent. Symptoms can last from a few days to two years; however, most cases resolve within a year. People affected by the condition typically recover all function of the affected foot and have no lasting consequences.

Last updated on 05-01-20

How might Kohler disease be treated?

Kohler disease typically resolves over time with or without treatment. However, pain relievers, rest and avoidance of weight-bearing activities can help alleviate some of the symptoms. In some cases, a plaster walking cast and/or arch supports may also be recommended.

Last updated on 05-01-20


Connect with other users with Kohler disease on the RareGuru app

Do you have information about a disease, disorder, or syndrome? Want to suggest a symptom?
Please send suggestions to RareGuru!

The RareGuru disease database is regularly updated using data generously provided by GARD, the United States Genetic and Rare Disease Information Center.

People Using the App

Join the RareGuru Community

To connect, share, empower and heal today.

People Using the App