Dr. Kevin Yip

Dr Kevin Yip
Orthopaedic Surgeon
MBBS(UK), FRCS(EDIN), FAM(SING), FHKCOS(ORTHO)

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Squeezing

Squeezing: 1/-/11

Procedure.

Resist the subject’s attempt to squeeze your finger between index and middle fingers

Anatomical structures tested:

Muscle function:

• interosseus palmaris II
• Interosseus dorsalis II.

Squeezing: /II-IV

Procedure

Resist the subject’s attempt to squeeze your finger between middle and ring fingers.

Anatomical structures tested:

Muscle function:

• Interosseus dorsalis III
• Interosseus palmaris IV.

Squeezing: IV-V

Procedure.
Resist the subject’s attempt to squeeze your finger between ring and little fingers

Anatomical structures tested:

Muscle function:

• Interosseus dorsalis IV
• Interosseus palmaris V.

Common pathological situations:

• Pain is usually the result of a lesion in one of the dorsal interossei. The combination of positive tests shows which one is affected.
• Weakness may be one of the first signs of an amyotrophic lateral sclerosis or of
involvement of the T1 nerve root. It may also indicate a lesion of the ulnar nerve.

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