Panayiotopoulos C P, Scarpalezos S
Acta Neurol Scand. 1977 Dec;56(6):579-86. doi: 10.1111/j.1600-0404.1977.tb01463.x.
The development of the extensor digitorium brevis (EDB) muscle was studied in 39 healthy subjects, 27 patients with progressive proximal spinal muscular atrophy, 20 patients with limb-girdle muscular dystrophy and three with facioscapulohumeral muscular dystrophy. The EDB muscle is spared and usually hypertrophic in patients with muscular dystrophy, whereas it is often atrophic and weak in patients with spinal muscular atrophy. It is proposed that the degree of development of the EDB muscle can be used as a clinical sign in the differential diagnosis of progressive muscular atrophies.
对39名健康受试者、27名进行性近端脊髓性肌萎缩症患者、20名肢带型肌营养不良症患者以及3名面肩肱型肌营养不良症患者的趾短伸肌（EDB）发育情况进行了研究。在肌营养不良症患者中，趾短伸肌未受影响且通常肥大，而在脊髓性肌萎缩症患者中，该肌肉常萎缩且无力。有人提出，趾短伸肌的发育程度可作为进行性肌萎缩症鉴别诊断的一项临床体征。
