Kienböck's disease

Japanese: キーンベック病 - きーんべっくびょう
Kienböck's disease

Also known as lunate softening, this is a disease in which the lunate bone in the hand undergoes necrosis and softening. It was first described in 1910 by Austrian radiologist Robert Kienböck (1871-1953). It is most common in men aged 18 to 30, and is most commonly seen in people whose occupations require frequent use of the wrist (carpenters, farmers, etc.). There is pain when moving the wrist, and the pain goes away when the wrist is rested without being used. There is tenderness in the lunate bone on the dorsal side of the wrist, and although it rarely worsens suddenly, it progresses chronically and gradually restricts dorsiflexion and palmar flexion of the hand.

Although resting and heat therapy and massage are used to improve local blood circulation, complete recovery is difficult. Surgical treatment is often required. It is necessary to see an orthopedic specialist.

[Takashi Nagai]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

月状骨(げつじょうこつ)軟化症ともいい、手の月状骨が壊死(えし)に陥り軟化する疾患で、1910年オーストリアの放射線学者キーンベックRobert Kienböck(1871―1953)が初めて記載した。18~30歳くらいの男性に多く、手関節をよく使う職業の人(大工や農民など)に多くみられる。手関節を動かすと痛みがあり、手関節を使わず休ませると痛みはなくなる。手関節の背側で月状骨に圧痛があり、急に増悪することは少ないが、慢性に経過して手の背屈や掌屈がだんだん制限されてくる。

 安静にして局所の血行をよくするために温熱療法やマッサージなどを行うが、完治しにくい。しばしば手術的治療が必要となる。整形外科専門医の受診が必要である。

[永井 隆]

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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