Homan's sign

Calf pain elicited by passive dorsiflexion of the foot with the knee extended, historically regarded as an unreliable clinical sign of deep venous thrombosis of the lower extremity.

Causes

• Vascular causes

  • Deep venous thrombosis (DVT)

  • Superficial thrombophlebitis

• Neurological causes

  • Sciatic nerve compression

  • Lumbar intervertebral disc herniation

  • Lumbar radiculopathy

• Musculoskeletal causes

  • Gastrocnemius muscle spasm/strain

  • Ruptured Baker's cyst

• Cellulitis

• Achilles tendon disorders

• Compartment syndrome

• Venous insufficiency