Köhler disease
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Köhler disease (also spelled "Kohler" and referred to in some texts as Kohler disease I)[1] is a rare bone disorder of the foot found in children between six and nine years of age. The disease typically affects boys, but it can also affect girls. It was first described in 1908 by Alban Köhler (1874–1947), a German radiologist.[2][3] Dr. A. Köhler noted that children with foot pain displayed characteristics, within their x-rays, of irregularity in growth and development of the tarsal navicular bone in the foot. Furthermore, Köhler disease is known to affect five times more boys than girls and typically, only one foot is affected. The disease was then found to belong to a group of conditions called osteochondroses, which disturb bone growth at ossification centres which occurs during bone development.
Köhler disease | |
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Other names | Aseptic necrosis of the tarsal bone, Kohler's Disease of the Tarsal Navicular, Osteochondritis of tarsal/metatarsal bone |
Skeleton of foot. Medial aspect. | |
Specialty | Orthopedics |
Usual onset | 6-9 years old |
Treatment | Below knee cast, rest, NSAIDs, analgesics |
Prognosis | Good, with very few complications if treated |
It is caused when the navicular bone temporarily loses its blood supply. As a result, tissue in the bone dies and the bone collapses. When treated, it causes no long-term problems in most cases although rarely can return in adults. As the navicular bone gets back to normal, symptoms typically abate.