Cralley J C, Schuberth J M, Fitch K L
Anat Anz. 1982;152(2):189-97.
The deep band of the plantar aponeurosis is a variable structure formed by fibers from both the medial and lateral portions of the plantar aponeurosis. This band courses directly to the plantar ligament of the fourth metatarsophalangeal joint. Proximally it is superficial. Distally it passes deep to the tendons of the flexor digitorum longus to attach at the metatarsophalangeal joint. The second plantar and third and fourth dorsal interosseous muscles as well as the transverse head of adductor hallucis have attachments to the deep aponeurotic band. This band becomes taut when the proximal phalanx of the fourth toe is extended. No recent references to this structure could be found. The function of the deep band of the plantar aponeurosis is unknown, although the anatomical arrangement may make it important in stabilizing the fourth ray of the foot during locomotion.
足底腱膜深层是一种可变结构，由足底腱膜内侧和外侧部分的纤维形成。该束带直接走向第四跖趾关节的足底韧带。在近端它位于浅层。在远端它穿过趾长屈肌腱的深面，附着于跖趾关节。第二足底肌、第三和第四背侧骨间肌以及拇收肌横头均附着于腱膜深层束带。当第四趾近节趾骨伸展时，该束带会拉紧。目前尚未发现关于该结构的最新参考文献。尽管其解剖结构可能使其在运动过程中对稳定足部第四跖骨至关重要，但足底腱膜深层束带的功能尚不清楚。
