Crural Fascia Detail

fascia cruris detail

The crural fascia is the deep fascia enclosing the leg, forming the anterior, posterior, peroneal, and deep posterior compartments with their intermuscular septa. It is continuous superiorly with the fascia lata and inferiorly with the extensor and flexor retinacula.

An expanded entry for Crural Fascia.

Anatomical Data

Boundaries & Contents

Location	Investing deep fascia of the leg
Boundaries	Fused to the anteromedial surface of the tibia Continuous above with the fascia lata and below with the ankle retinacula Gives off the anterior, posterior and transverse intermuscular septa
Contents	Contents of the four leg compartments

Biomechanics

Function & Actions

Forms the outer wall of the four leg compartments and gives partial origin to the muscles beneath it in the upper leg.

Clinical Relevance

Clinical Notes

Acute leg compartment syndrome from tibial fracture, reperfusion, or exercise produces raised compartment pressure requiring four-compartment fasciotomy through medial and lateral incisions.

Pathology

Common Injuries & Conditions

Acute Leg Compartment Syndrome

Raised pressure in one or more of the four leg compartments after fracture or vascular injury requiring emergency four-compartment fasciotomy.

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