Thompson test is Basically , done for integrity of Achilles tendon , by squeezing the calf by the therapist .
To see the function of plantarflexion .
Other tests are also available for the integrity and alignment of Achilles tendon.
Clinical relevant anatomy ?
Basically there are 2 main muscle forming the Achilles tendon .
That is Gastrocnemius and Soleus and also plantaris.
Gastrocnemius has 2 heads arising from posterior surface of femur that is condyles of femur.
Soleus arises from the Posterior aspect of tibia and some part of fibuka as well.
Plantaris arises from distal lateral posrtion of linea aspera.
This joint serves a connection between posterior knee and ankle.
And responsible for proper biomechanical alignment of these 2 joints.
Soleus and gastrocnemius combine down to form Achilles Tendon .
Tendon connects muscle to bone . They are inelastic fibrous connective tissue. They are mainly collagen fibres , elongated cells.
Also read about:- Dial Test
Purpose of Thompson Test ?
The purpose of this test ,to find out the tear in Achilles tendon .
So if there is tear in Achilles Tendon, less plantarflexion or in some cases no plantarflexion.
Action of Achilles Tendon ?
Basically, it mains function is of plantarbflexion while squeezing the calf muscles .
Also, its function is the integrity of ankle joint.
Technique for this standing flexion test?
To perform this test, take the patient in prone position.
Check the alignment of
The ankle would be hanging down the cough , for the alignment of Achilles Tendon.
The clinician should put the hands on beneath the foot.
Then, the Therapist would squeeze the calf and see if plantarflexion is present or not.
Evaluation of Thompson test ?
So, in thompson test, if the Achilles Tendon is ruptured then there would be no plantarflexion.
It is still possible for deep plantar flexors and plantaris to cause plantar flexion at ankle joint.
When the foot hangs down and if Achilles is ruptured then then the foot hangs down in straight.
And if knee rotates more than 10 ° of external rotation at foot when knee is flexed at 30° , then there is problem in popletius corner.
Relevancy of this test?
Not that much evidence has been found for this test.
So basically, the crux is that research and reports suggested that this test is not relevant .
The main scientist who performed this thompson test and did research about it was Simmonds – Thompson .
But there mechanism Is not completely clear .
Then the study conducted by Scott and his colleagues cam up with other findings .
Also Douglas and his colleagues came up with different findings.
So overall , cruz was that Thompson test was not that relevant.
So all the articles suggested that it is not relevant but more further studies are required to prove its relevancy.