J.Jpn. Surg. Soc.. 60(10): 1637-1645, 1959

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STUDIES OF THE LEPROTIC MOTOR PARALYSIS REPORT NO. 1
OBSERVATION OF LEPROTIC MOTOR PARALYSIS BY MEANS OF MUSCULAR CHRONAXIMETRY.

The progress in anti-leprotics of various kinds improves remarkably on leprous symptoms, such as absorption of leprotic skin lesions, negative bacillus leprae, positive lepromin reaction etc., but leprotic motor paralysis is hardly recoverable except a very slight case for local symptom. Therefore, any countermeasure for reconstructive surgery of the case has to be done urgently by clinicians.
Regarding the treatment of leprotic motor paralysis, it is exceedingly necessary of fundamental observations for its occurrence frequency or the degree of the case.
However, up to now a very few literatures discribe about the aboves.
In order to make clear the above subject, I took chronaxie of leprous skeleton muscles out of 120 cases. Contrast 60 lepromatus cases and 60 tuberculoid cases except for any case at progressive form.
I used an EKO type chronaximeter. Classification for increasing degree of muscular chronaxie and regressive degeneration of muscles was made in accordance with Burguignon's methods.
The results were as follows :
1) Function of leprous skeleton muscles was kept by the following frequency :-
M. extensor digitorum communis ······· 97.9%
M. flexor digitorum sublimis················ 90.6%
M. tibials anterior·································· 64.2%
M. gastrocnemius ································ 94.2%
M. frontalis ··········································· 92.5%
M. orbicularis oculi······························· 82.5%
M. orbicularis oris superior ················· 91.2%
M. orbicularis oris inferior···················· 91.2%
M. zygomaticus major··························· 92.5%
M. temporalis········································ 100.0%
M. masseter ·········································· 100.0%
2) Regarding the above functions, there were no difference between lepromatus and tuberculoid cases.
3) The cases more than 69.8% of leprotic myoparalysis were suffered from permanent paralysis which were considered as regressive degeneration of muscular tissue.
4) Muscular function of leprotic myoparalysis can be recovered at early physical treatment .
5) Even though the above cases treated with at early stage, if no contraction of muscular chronaxie shows in 3-6 months after paralysis occurred or no return to its normal value in the above period, leprotic myoparalysis is to be diagnosed as permanency.
(Author's abstract)

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