麻痺の臨牀的研究（第1編）

緒論

　神經系疾患の一つの症牀である運動麻痺は臨牀上極めて重要なる症状であつて，其の存在は運動脱落及び其部に現はれる異常位置により認識せられ，其の程度は患者に極力運動を命じ，其の運動に對して自己の腕を以て抵抗しつゝ検すれば概略を知り得るも斯かる方法は極めて粗略にして麻痺の程度の差僅少なる際の判別は困難で正確を期し難い。麻痺を電氣學的に取扱つた研究は多數あるが，これを力學的に取扱つた研究は見當らない。私は指力測定裝置及足力測定裝置を考案し此等の裝置を使用して昭和23年11月以來清水外科及整形外科入院患者及外來患者116名及健常者230名に就て指力及足力を測定したので茲に其成績を報告する。

1. The author devised an apparatus for measure-ment of the finger power based on the princi- ple that the load and elongation of the helical spring are in linear relation.

2. The static flexor power and the static ex-tensor power of the second to the fifth fingers were measured on 230 normal persons from 6 to 74 years of age (122 males and 108 females).

These were classified into three groups ac-cording to the age, the arithmetical mean of each group being regarded as the standard value.

The grip power and the circumferences ofthe forearm and the upper arm were mesur-ed at the same time.

3. The static flexor and the static extensor power of the four fingers, the grip power, the circumferences of the forearm and the upper arm were measured on 101 cases with nervous disorders and on 15 general surgical cases without nervous disorders.

4. By the use of this apparatus one can easily measure the finger power and know whether paralysis is present at all or how far paralysis extends.

The degree of paralysis can be well and quantitatively demonstrated by the author's "decrement of muscle power" (standard value-measured value/standard value ×100).

5. The chronological mesurement on one patient shows the change and the conditions of paralysis quantitatively and serves well to determine indications for operations and prognosis and to evaluate the operative results.