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Related to peroneus: Peroneus tertius


(pĕr″ō-nē′ŭs) [Gr. perone, pin]
One of three muscles of the leg that act to move the foot.

peroneus brevis

The muscle arising from the distal two thirds of the lateral fibula and attaching to the styloid process of the base of the fifth metatarsal. The peroneus brevis assists in plantar flexion of the foot and eversion of the ankle.

peroneus longus

The muscle arising from the lateral tibial condyle and the upper two thirds of the fibula and inserting on the lateral aspect of the first metatarsal and the associated portion of the first cuneiform. The peroneus longus is the primary contributor to the plantar flexion of the foot and the eversion of the ankle.

peroneus tertius

The muscle arising from the anterior portion of the distal one third of the tibia and the adjacent portion of the interosseous membrane and attaching on the dorsal surface of the fifth metatarsal. The peroneus tertius is a secondary contributor to ankle dorsiflexion and eversion. This muscle is absent in a significant proportion of the population.


Any one of the muscles that take origin from the FIBULA and are inserted into the bones of the foot. The peroneal muscles assist in walking and in everting the raised foot.


; peronei peroneal muscles (longus [PL] and brevis [PB]) of lateral compartment of lower limb; action eversion of subtalar joint and plantarflexion of foot at ankle joint; PL and PB tendons lie within a common synovial sheath, within the retrofibular groove at the posterior aspect of the lateral malleolus, and enter the foot deep to the superior peroneal retinaculum (creating a point of ischaemic stress, leading to chronic degeneration and degenerative changes in PL and PB tendons; see subluxing peroneal tendons); PL and PB common tendon sheath divides to form individual sheaths at lateral side of foot
References in periodicals archive ?
In this position, a pulling force from the lateral cord of the plantar aponeurosis along with tension from the peroneus brevis tendon causes a longitudinal and torsional strain.
The peroneus longus tendon rupture with the fractured os peroneum was detected at the peroneal tubercle.
The MR imaging appearance of longitudinal split tears of the peroneus brevis tendon.
Hastanin yakinmalarinin baslangicindan 2 ay sonra yapilan ilk igne EMG bulgulari Spontan aktivite Kas PKD Fibrilasyon L Tibialis Anterior + + L Peroneus Longus + + + + + L Gastroknemius - - L Biseps femoris (kisa basi) + + + L Semimembranosus - - Motor Unite Potansiyeli Tam kasi Kas Sure Amplitud Polifazi L Tibialis Anterior Normal Normal + + Hafif seyrelme L Peroneus Longus Normal + Normal Ileri seyrelme L Gastroknemius + Normal + Submaksimal L Biseps femoris (kisa basi) Normal + + Seyrelme L Semimembranosus Normal Normal Normal Submaksimal Tablo 2.
The peroneus brevis tendon is split and transferred through the fibula and into the calcaneus, thus providing a more anatomic reconstruction.
Gabison and Gentile (22) describe a case of acute foot drop after ankle sprain, in which the peroneus longus muscle was ruptured.
Mick C, Lynch F: Reconstruction of the peroneal retinaculum using the peroneus quartus: a case report.
Needle electromyography (EMG) showed marked denervation potentials and a reduced recruitment pattern especially in the right tibialis anterior, peroneus longus and biceps femoris muscles.
In another study following a fatigue exercise simulating high-heeled gait, habitual high-heel shoe wearers showed low-level endurance of the peroneus longus muscle and an imbalance in muscle activity between the lateral and medial heads of gastrocnemius [21].
11) The anterior compartment contains the tibialis anterior, extensor hallicus longus, extensor digitorum longus, and peroneus tertius.
Futbolculari kinezyolojik bant, elastik olmayan teyp ve bantsiz olarak 3 kez sarsma testine tabii tutmuslar ve bu test sirasinda peroneus longus kasinin aktivitesini degerlendirmislerdir.
In backward-leaning postures, the vasti were active in roughly equal amounts to provide knee extension moments and the tibialis anterior and peroneus tertius were active to provide a dorsiflexion moment.