Muscles of the compartment swell inside a tight compartment because of unexpected overuse that might impede venous return resulting in accumulation of more fluid in the compartment with unyielding walls.Shin splints also appear in trained runners who don’t warm up. Anterior tibial compartment syndrome/shin splints (Fresher’s syndrome): It happens because of overexertion of the muscles of the anterior compartment particularly when the untrained men who lead a sedentary life are requested to walk or run for long distances.If normal, its tendon can be viewed and palpated.

To analyze tibialis anterior medically, request the patient to stand on heels or dorsiflex the foot against resistance.

It functions as an inverter of the foot at the midtarsal and subtalar joints.

It’s the leader dorsiflexor of the foot in the ankle joint.

Now it enters medially underneath the inferior group of inferior extensor retinaculum to be added on to the inferomedial side of the base of the very first metatarsal bone and adjacent part of the medial cuneiform. It pierces the medial part of superior extensor retinaculum and the upper group of inferior extensor retinaculum. The muscle fibres converge below to create a tendon that is related to the lower 1/3rd of the lateral surface of the tibia.

Adjoining part of the interosseous membrane.

Upper 2/3rd of the lateral surface of the tibia and adjoining part of the lateral condyle of the tibia.

It’s the most medial and superficial dorsiflexor of the foot, which is located against the lateral surface of the tibia. It’s a spindle-shaped multipennate muscle. * MP: metatarsophalangeal, ** PIP = proximal interphalangeal, *** DIP = distal interphalangeal. Lower 1/4th of the anterior surface of the fibulaĭorsal surface (medial part) of the base of the 5th metatarsal bone Extension of MP*, PIP**, and DIP*** joints of the lateral four toesġ. Middle and distal phalanges of the lateral four toes by four tendonsĢ. Whole of the upper 1/4th and medial part of the middle 2/4th of the anterior surface of the fibula Extension of the phalanges of the big toe Middle 2/4th (posterior part) of the medial surface of the shaft of fibulaīase (dorsal surface) of the distal phalanx of the big toeġ. Maintenance of the medial longitudinal arch of the footġ. Adjoining medial surface of the base of the 1st metatarsalģ.

Distal part of the lateral condyle of the tibiaġ.

Adjacent part of the interosseous membraneģ. Upper 2/3rd of the lateral surface of the tibiaĢ. Tibialis anterior (it has spindle-shaped multipennate belly)ġ. Origin, Insertion, and Actions of The Muscles of The Anterior Compartment of The Leg Muscle All are supplied by the deep peroneal nerve and dorsiflex. With the exception of the Tibialis anterior which appears from tibia, all the muscles of the anterior compartment of the leg originate from the Fibula. Muscles of The Anterior Compartment of The Leg Nerve: Deep peroneal nerve (anterior tibial nerve).Muscles: 4 muscles (tibialis anterior, extensor hallucis longus, extensor digitorum longus, and peroneus tertius).

Compartments of leg vessels