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Muscular Atrophy in the Hemiplegic Thigh in Patients After Stroke

Metoki N, Sato Y, Satoh K, Okumura K, Iwamoto J: Muscular atrophy in the hemiplegic thigh in patients after stroke. Am J Phys Med Rehabil 2003;82:862–865. Objectives This study evaluated muscular atrophy in the hemiplegic limbs by assessing the muscle volume of the thighs in stroke patients. Design Muscle volume of the bilateral thighs was determined by computed tomographic scanning in 50 hemiplegic patients after stroke. Results The average muscle volume in the hemiplegic side was significantly lower than that in the nonhemiplegic side. When the patients were divided into the two groups aged <65 yr old and ≥65 yr, age-dependent reduction in the muscle volume was significant only in the nonhemiplegic side. In addition, the ratio of the muscle volume in the hemiplegic side to that in the nonhemiplegic side was significantly lower in the older group than in the younger group. Muscle volume in both hemiplegic and nonhemiplegic sides correlated positively with Barthel index and negatively with patient age. Conclusion Muscle volume decreases in the hemiplegic side in stroke patients.