Extensor Expansion of Foot

Description

Extensor expansion of the foot

Extensor apparatus of the toes

Name

• Extensor Expansion of the Foot
• Extensor Hood
• Extensor Hood Apparatus
• Aponeurosis Extensoria Pedis

General

• Runs across the dorsal surface of each toe
• Extensor tendons become incorporated into a fascial expansion

Proximal Aspect

• Sometimes called transverse lamina or extensor sling
• Fibrous sheath that encloses several tendons as they pass across the metatarsophalangeal joints
• Fibers are transversely orientated fibers that extend around the capsule of the metatarsophalangeal joint
• May be absent at the first metatarsophalangeal joint
• Extend around the toes to blend on the plantar aspect with the deep transverse metatarsal ligaments

Distal Aspect

• Sometimes termed extensor wing or hood
• Formed by obliquely oriented fibers
• Distally, the extensor expansion of foot divides into three bands near the Interphalangeal Joints of the Foot
• One central band that attaches to the base of the middle phalanx
• Two collateral bands that attach to the distal phalanx

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Clinical Significance

• Needs to be updated

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See Also

• Foot Anatomy Main
• Foot Pain Main
• Physical Exam Foot

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