fibularis brevis


Also found in: Wikipedia.

fibularis brevis

A muscle of the knee that arises from the distal two-thirds of the lateral fibula and the anterior and posterior crural intermuscular septa.

Action
Everts and plantarflexes foot.
 
Nerve
Superficial peroneal nerve.
 
Insertion
Lateral base of the 5th metatarsal.
References in periodicals archive ?
The lateral compartment is supplied by the superficial fibular nerve and normally contains just two muscles, fibularis brevis and fibularis longus.
The fusiform-shaped belly of the fibularis brevis muscle is situated deep to the larger fibularis longus muscle (Standring).
Routine dissection and study of a 74-year old Caucasian female cadaver by medical and physical therapy students in our Department revealed an anomaly in the insertion of the fibularis brevis muscle of the right leg.
Out of 14 cases [23, 37, 38] with an absent FT, 11 (78.5%) cases demonstrated replacement with a fibularis digiti quinti and 2 (14.3%) cases showed a tendon slip from fibularis brevis (PB).
Particularly within the tendons, the fibularis tertius and fibularis brevis are the most prevalent, with cases also noted at tibialis anterior, flexor digitorum longus, extensor digitorum longus, and tibialis posterior.
The fascicles to fibularis longus and fibularis brevis could not be distinguished separately after their anastomosis into the SF nerve because of interfascicular plexusing.
The Anatomical Basis of the Vascularized Fibularis Brevis Grafts
The fibularis brevis muscle was first classified as Type II then reclassified as Type IV (Mathes & Nahai; Yang, et al, 2005).
The distally pedicle fibularis brevis muscle flap is proved to be more helpful to cover these defects and can reach areas distal to the lateral malleolus (Eyssel & Dresing, 1989; Eren et al, 2001; Koski et al, 2005; Yang et al.).
(13,14) Additionally, as the PTT becomes dysfunctional there is an imbalance with its antagonist muscle the fibularis brevis. The dominating unopposed action of the fibularis brevis also contributes to the deformities mentioned above (medial longitudinal arch collapse, hindfoot valgus, and forefoot abduction).
The biaxial movements around the talus are induced mainly by five muscles (tibialis anterior, tibialis posterior, fibularis longus, fibularis brevis, and fibularis tertius).
As expected, the tibialis anterior and fibularis tertius ran anterior to the ML axis for dorsiflexion, whereas the tibialis posterior, fibularis longus, and fibularis brevis ran posterior to the axis for plantar flexion (Fig.