Peroneus longus

Anatomy pictures

Fibularis/Peroneus longus

Fibularis/Peroneus brevis

Fibularis/Peroneus tertius

Referred pain pattern

Muscle type

• Phasic
  • Weakens when overactivated

Symptoms

• Weak ankles, with frequent ankle sprains
• Entrapment of fibular nerve
• Foot drop
• Longstanding pain after earlier ankle fractures

Muscular attachments

Videos

Short version

Detailed version

Myofascial lines

Lateral line

• Splenius capitis / sternocleidomastoideus
• External and internal intercostals
• Lateral oblique
• Gluteus maximus
• Tensor fascia latae
• Iliotibial tract/abductors
  • Gluteus maximus
  • Gluteus medius
  • Gluteus minimus
• Anterior ligament of head of fibula
• Peroneal muscles

Spiral line

• Splenius capitis and cervicis
• Rhomboideus major and minor
• Serratus anterior
• External oblique, abdominal aponeurosis, linea alba
• Internal oblique
• Tensor fascia latae
• Iliotibial tract
• Tibialis anterior
• Peroneus longus
• Biceps femoris
• Sacrotuerous ligament
• Sacrolumbar fascia
• Erector spinae

Anatomy

Position

• Superficial
• Distal tendon that runs underneath the foot is located deep

Origin

• Lateral condyle tibiae
• Caput fibula
• Proximal 1/2 of lateral aspect of fibula
• Septum intermusculare
• Deep fascia of septum intermusculare

Insertion

• Os cuneiforme, medial aspect
• 1. metatarsal, lateral aspect of basis

Main function

• Tarsal-joint
  • Evertion
• Ankel
  • Plantarflexion

Nerve innervation

• Segmental
  • L5-S1
• Peripheral
  • Superficial aspect of peroneal nerve

Arterial supply

• Fibular artery