What does Wartenberg sign indicate?

Wartenberg’s Sign refers to the slightly greater abduction of the fifth digit, due to paralysis of the abducting palmar interosseous muscle and unopposed action of the radial innervated extensor muscles (digiti minimi, digitorum communis ).

How do you cure Wartenberg sign?

A method of surgical correction is described for Wartenberg’s sign, or persistent abduction of the little finger, using a slip of the extensor digitorum communis of the ring finger. The transferred component can be either the central slip, or the ulnar slip extended by the connexus intertendineus to the little finger.

How do you test a Wartenberg sign?

Differentiation of the cause of Wartenberg’s sign is based on associated clinical findings in the history and examination and sometimes involves investigations including radiographs and/or MRI of the cervical spine, elbow/wrist/hand and/or nerve conduction studies and EMG.

What is finger abduction?

Abduction of the digits of the hand is defined as moving away from the midline of the hand, which is the middle digit. Abduction, then, spreads the fingers. Adduction of the fingers returns them toward the midline, or the middle finger. This brings the fingers together.

What is Guyon’s canal syndrome?

Guyon canal syndrome is a relatively rare peripheral ulnar neuropathy that involves injury to the distal portion of the ulnar nerve as it travels through a narrow anatomic corridor at the wrist. The ulnar nerve originates from C8-T1 and is a terminal branch of the brachial plexus.

Can the middle finger abduct?

In human anatomy, the dorsal interossei (DI) are four muscles in the back of the hand that act to abduct (spread) the index, middle, and ring fingers away from hand’s midline (ray of middle finger) and assist in flexion at the metacarpophalangeal joints and extension at the interphalangeal joints of the index, middle …

Can the middle finger adduct?

The palmar interosseous muscles adduct the fingers towards the middle finger. All three intrinsic groups of muscles pass palmar to the axis of the metacarpophalangeal joints, and therefore contribute to flexion there.

What is Supinator syndrome?

Supinator syndrome is a rare compression neuropathy of the upper limb affecting the deep branch of the radial nerve (DBRN) due to nerve compression located near or beneath the supinator muscle.

How do you check for finger abduction?

TECHNIQUE [SMALL FINGER ABDUCTION TEST (SFAT)] The patient is asked to actively abduct the small finger against resistance while the examiner simultaneously palpates for the FCU tendon at the ulnar side of the wrist crease (Figs.

What muscles do finger adduction?

The interossei muscles are intrinsic muscles of the hand located between the metacarpals. They consist of four (or three) palmar and four dorsal muscles that, respectively. These muscles are responsible for finger adduction and abduction.

How do you strengthen palmar interossei?

Hand grippers Hold the gripper in the hand and squeeze it together, hold for a few seconds, and release. Perform twelve repetitions for three sets in each hand. To make the exercise more challenging, squeeze the gripper together and hold for as long as possible.