pronator quadratus

pronator quadratus

 

PRONATOR QUADRATUS :

pronator-quadratus

pronator-quadratus

Pronator quadratus is a square shaped muscle on the distal forearm
that acts to pronate the hand.

the anterior side of the arm, it is innervated by a branch of the median nerve,
the anterior interosseous nerve .

Arterial blood comes via the interosseous artery.

 

ORIGIN : anteromedial surface of the ulna

 

INSERTION : anterolateral surface of the radius

 

NERVE SUPPLY : median nerve

 

ACTION/EXERCISE : Pronation of the Forearm

pronator quadratus action

pronator quadratus action

CLINICAL IMPORTANCE : complete repair of the pronator quadratus defined as full and
stable replacement of the periphery of the pronator quadratus back to its original position,
is not always possible upon conclusionof the operation.

In some Postoperative incomplete pronator quadratus repair
with regards to range of motion, grip strength, and complications are not well documented.