Extensor digitorum longus

Action Extend the 2nd through 5th

toes, dorsiflex the ankle, evert the foot

Origin Proximal anterior shaft of

fibula and interosseous membrane

Insertion Middle and distal

phalanges of 2nd through 5th toes

Innervation Deep peroneal (L5-S1)

Extensor digitorum longus Supine

Palpating the distal tendon

Ask pt. to extend his toe

Follow the tendons toward ankle (converge into single bundle underneath extensor retinaculum)

Explore the belly b/w tibialis anterior and peroneal muscles

Test for extensor digitorum longus & brevis

Test for extensor digitorum longus & brevis

• Patient:Patient: Supine or sitting

• Fixation:Fixation: The examiner stabilize the foot in slight plantar flexion

• Test:Test: Extension of all joint of the 2nd through 5th digits

• Pressure:Pressure: Against the dorsal surface of the toes, in the direction of flexion

Extensor hallucis longus

Action Extend the 1st toe,

dorsiflex the ankle, invert the foot

Origin Middle anterior surface

of fibula and interosseus membrane

Insertion Distal phalange of 1st toe

Innervation Deep peroneal (L5-S1)

Extensor hallucis longus

Ask pt. to extend his first toe

Follow the tendon toward the ankle

Test for extensor hallucis longus & brevis

Test for extensor hallucis longus & brevis

• Patient:Patient: supine or sitting

• Fixation:Fixation: The examiner stabilizes the foot in slight plantar flexion

• Test:Test: Extension of the metatarsophalangeal and interphalangeal joint of the great toe

• Pressure:Pressure: Against the dorsal surface of the distal and proximal phalanges of the great toe in the direction of flexion

All flexors

Locate medial malleolus

Slide off the malleouls posteriorly and proximally into the space b/w the shaft of tibia and calcaneal tendon

Difficult isolate specific tendon

All flexor

“Tom, Dick AN’ Harry”

Test for flexor hallucis longus

Test for flexor hallucis longus

• Patient:Patient: Supine or sitting

• Fixation:Fixation: The examiner stabilizes the metatarsophalangeal joint in a neutral position and maintains the ankle joint approximately midway between dorsal and plantar flexion

• Test:Test: Flexion of the interphalangeal joint of the great toe

• Pressure:Pressure: Against the plantar surface of the distal phalanx, in the direction of extension

Muscles of the foot