When to Test Myotomes?

Myotome testing is an essential part of neurological examination when suspecting radiculopathy. Muscle strength in a particular myotome may help in identifying at which level a nerve root compromised.

When should I test myotomes and dermatomes?

When a doctor tests for nerve root damage in a patient, he or she will often test the myotomes or dermatomes for the nerves assigned to that location. A dermatome is tested for abnormal sensation, such as hypersensitivity or lack of sensitivity.

How long do you hold a myotome test?

A myotome is a muscle supplied by a particular nerve root level. These are assessed by performing isometric resisted tests of the myotomes L1–S1 in middle range, held for approximately three seconds.