Lundeen R O, Latva D, Yant J
J Foot Surg. 1983 Summer;22(2):142-4.
In 80% of a random sample the extensor ossis metatarsi hallucis was present. In 90% of these occurrences it arose off the medial aspect of the extensor hallucis longus tendon and coursed distally, medially, and inferiorly an average of 4.0 cm., inserting into the sling portion of the extensor apparatus. Variation of this insertion occurred in 10% of the cases in which the sling portion of the extensor apparatus continued to illustrate fibers of the extensor ossis metatarsi hallucis inserting into it. There is little variation in the occurrence of this tendon between the sexes. The frequency of occurrence of the extensor ossis metatarsi hallucis from this study supports a theory that this tendon should be considered to occur as a rule rather than an exception, and because the previously suggested name of extensor hallucis capsularis is not biomechanically sound, perhaps the tendon merely be termed the secondary extensor hallucis longus.
在随机抽取的样本中，80%存在拇短伸肌。在这些出现拇短伸肌的情况中，90%起自拇长伸肌腱的内侧，向远侧、内侧和下方走行，平均长度为4.0厘米，止于伸肌装置的吊带部分。在10%的病例中，伸肌装置的吊带部分仍显示有拇短伸肌纤维插入，出现了这种止点的变异。该肌腱在两性中的出现情况差异不大。本研究中拇短伸肌的出现频率支持这样一种理论，即该肌腱应被视为通常存在而非例外情况，并且由于之前建议的拇囊伸肌这一名称在生物力学上不合理，或许该肌腱可仅称为副拇长伸肌。
