1988 Volume 43 Issue 3 Pages 724-735
We examined the relationship between muscle injection of drugs into the quadriceps and its contracture.
Subjects were children who had received medication at a clinic during the period from January 1967 to December 1970. Among the patients of the clinic, a high incidence of quadriceps contracture had been observed during the period.
As basic data, we took the results of interviews with the subjects, the results of clinical examinations for quadriceps contracture, and medical records of the subjects which had been kept in the clinic.
The following results were obtained.
1) There were no abnormalities among the subjects who had never been injected in the quadriceps muscle. The incidence and the severity of quadriceps contracture were closely related to the total amount of the drugs injected into the muscles.
2) The total numbers of injections of the following drugs were significantly larger in subjects with symptoms of contracture than in subjects without any symptoms.
The drugs were Terramycin (Ox-tetracycline), Obelon (Sulpyrin, Aminopropyrin, Theoclate diphenyl pyralin), Chloromycetinsol (Chloramphenicol), Atarax-P (Hydroxyzin hydrochloride), Gammavenin (immuno-Globlin), Panvitan (Vitamin A-D), 10%-Pantocin (Pantethine) and Phenobarbital (Phenobarbital natrium).
3) It was revealed by means of quantification theory type II analysis that the main attributable factors of muscle contracture might be the age when the subjects had been injected for the first time, the total number of Terramycin+Obelon injections, and the experience of injection of 10% Pantocin or Phenobarbital, but sex and the year of the beginning of injection might be ignored.
Discrimination based on these results between the two groups, a normal group and a moderate or more severe symptomatic group showed reasonable sensitivity and specificity.
