@article{article_516292, title={Morphometry of the anterior interosseous nerve: a cadaveric study}, journal={Anatomy}, volume={12}, pages={111–114}, year={2018}, author={Kibar, Sibel and Bilecenoğlu, Burak and Filgueira, Luis and Uz, Aysun}, keywords={anterior interosseous nerve,cadaver,morphometry}, abstract={<font color="#58595b" face="Frutiger-Bold" size="1"> <font color="#58595b" face="Frutiger-Bold" size="1"> <font color="#58595b" face="Frutiger-Bold" size="1"> </font> </font> </font> <p align="left"> <font face="Times New Roman" size="3"> <br /> </font> </p> <p style="margin:0cm 0cm 10pt;"> <font face="Calibri"> <b> <span lang="tr" style="line-height:115%;font-size:12pt;" xml:lang="tr">Objectives: </span> </b> <span lang="tr" style="line-height:115%;font-size:12pt;" xml:lang="tr"> ​Pathophysiology and etiology
of anterior interosseous nerve (AIN) syndrome are still controversial. This
anatomical​ ​dissection study aimed to understand the anatomy of AIN. </span> </font> </p> <p align="left"> <font face="Times New Roman" size="3"> <font face="Calibri"> <b> <span lang="tr" style="line-height:115%;font-size:12pt;" xml:lang="tr">Methods: </span> </b> <span lang="tr" style="line-height:115%;font-size:12pt;" xml:lang="tr"> From a random sample of
upper extremities of whole-body human cadavers (n=10), 20 upper extremities
were included​ ​in the study. Two of the cadavers were females and 8 were males
(age range 34–62 years). Specimens were dissected with​ ​the elbow in
extension, wrist in neutral position and forearm in pronation. After
superficial dissection, the pronator teres muscle​ ​was released, and the
branching pattern of the AIN and the separation of the nerve from the
interepicondylar line were​ ​recorded. The branches to the pronator teres,
flexor pollicis longus, flexor digitorum profundus and flexor digitorum
superficialis​ ​were recorded according to their distance from the
interepicondylar line. </span> </font> </font> </p> <p align="left"> <font face="Times New Roman" size="3"> <font face="Calibri"> <b> <span lang="tr" style="line-height:115%;font-size:12pt;" xml:lang="tr">Results: </span> </b> <span lang="tr" style="line-height:115%;font-size:12pt;" xml:lang="tr"> The AIN branched from
the main trunk 5.1 to 47.89 mm (mean 37.58±11.25 mm) distal to the
interepicondylar line.​ ​AIN gave off 1–4 branches to the pronator teres. The
first branch left the AIN 10.05–83.84 mm proximal and entered the muscle​
​23.49–43.72 mm distal to the interepicondylar line. AIN gave 1–4 branches to
the flexor pollicis longus, flexor digitorum profundus​ ​and flexor digitorum
superficialis at varying distances. The origin of the branches of AIN, as well
as the innervation by​ ​one or multiple branches for a muscle, was variable. </span> </font> </font> </p> <p align="left"> <font face="Times New Roman" size="3"> <font face="Calibri"> <b> <span lang="tr" style="line-height:115%;font-size:12pt;" xml:lang="tr">Conclusion: </span> </b> <span lang="tr" style="line-height:115%;font-size:12pt;" xml:lang="tr"> This study provides a
detailed map of the anterior interosseous nerve innervating flexor pollicis longus,
flexor​ ​digitorum profundus and flexor digitorum superficialis muscles, to
serve as a guide for location of AIN block in patients with​ ​upper extremity
spasticity and AIN syndrome. </span> </font> </font> </p> <p align="left"> <font face="Times New Roman" size="3"> <br /> </font> </p> <p style="margin:0cm 0cm 10pt;"> <span style="line-height:115%;font-size:12pt;"> <font face="Calibri">  </font> </span> </p> <p align="left"> <font face="Times New Roman" size="3"> </font> <br /> </p> <p align="left"> <br /> </p> <p> </p>}, number={3}, publisher={Society of Anatomy and Clinical Anatomy}