Pronator Quadratus
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Description[edit | edit source]
Pronator Quadratus is a deep-seated,short, flat quadrilateral muscle with parallel running fibres.[1] Muscle has a mean length of 6 cm and mean width of 3.5 cm, the pronator quadratus muscle is confined in a small closed compartment, delimited by the distal side of the interosseous membrane dorsally and by its own fascia on the volar surface.[2]The muscle has been neglected to a great extend in the anatomical and functional literature.The study confirms,that the muscle consist of two head different head- Superficial head which is prime mover in forearm pronation, and the deep head which is dynamic stabilizer of radioulnar joint.[3]
Origin[edit | edit source]
Muscle arises from the oblique ridge on the anterior surface of the distal fourth of the Ulna.[1]
Insertion[edit | edit source]
Muscle is inserted in lateral border and anterior surface of the distal fourth of the radius.[1]
Nerve[edit | edit source]
Artery[edit | edit source]
Function[edit | edit source]
Clinical relevance[edit | edit source]
Assessment[edit | edit source]
Treatment[edit | edit source]
Resources[edit | edit source]
- ↑ 1.0 1.1 1.2 Choung PW, Kim MY, Im HS, Kim KH, Rhyu IJ, Park BK, Kim DH. Anatomic characteristics of pronator quadratus muscle: a cadaver study. Annals of rehabilitation medicine. 2016 Jun;40(3):496.
- ↑ Créteur V, Madani A, Brasseur JL. Pronator quadratus imaging. Diagnostic and Interventional Imaging. 2012 Jan 1;93(1):22-9.
- ↑ Stuart PR. Pronator quadratus revisited. Journal of Hand Surgery. 1996 Dec;21(6):714-22.
