Thompson test

Thompson test examines

A. Integrity of the Tympanic membrane

B. Integrity of the Achilles tendon

C. Integrity of the pupillary reflex

D. Integrity of the Vagotomy

Achilles Squeeze test:

Simmons Test, Thompson test

For Achilles tendon rupture. Squeezing the calf muscle fails to produce plantar flexion of the ankle joint.

Also called – Simmons Test, Thompson test

Thompson test procedure

Patient lies prone with his foot over the end of the table.

Alternatively, the patient could lie prone with his knee flexed to 90°.

The examiner squeezes the calf muscles, specifically the gastrocnemius – soleus complex, with his hand. Squeezing the calf should cause contraction of the Achilles tendon, resulting in plantar flexion.

If the Achilles tendon is completely ruptured, there will not be any apparent plantar flexion.

Complete Achilles tendon rupture

Additional clinical signs that may be observed to corroborate the diagnosis:

Inspection- with the patient prone and both ankles fully relaxed, the foot on the ruptured side hangs straight down due to the absence of the tendon tone

Palpable gap

There may be a palpable gap in the tendon, approximately 3-6cm proximal to the insertion into the calcaneus

Strength of the plantar flexion

The strength of the plantar flexion is markedly reduced

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