Thompson test; midcalf squeeze test

Introduction

No plantar flexion noted on squeezing calf with rupture of Achilles tendon.

Indications

• test for Achilles tendon rupture

Procedure

• with the patient in the prone position, examine the posterior aspect of both heels
• asymmetry may show a less demarcated Achilles tendon border
• squeeze the belly of the gastrocnemius (thickest part of calf) on the unaffected side; this should result in plantar flexion of the foot
• squeeze the belly of the gastrocnemius on the affected side; no plantar flexion of the foot is a positive test

Notes

• pain just above the ankle with a midcalf squeeze test suggests tibiofibular syndesmosis ligament injury

More general terms

• physical examination technique

Additional terms

• Achilles tendon rupture/tear