Research Information System
24. Ulusal Anatomi Kongresi, İstanbul, Turkey, 19 - 21 September 2024, no.43728, pp.113, (Summary Text)
Objective: It’s crucial to have a thorough understanding of the
anatomy and topography of the-superficial-branch-of-theradial-
nerve (SBRN), one-of-the-two terminal branches of
the-radial-nerve, to avoid complications during surgeries in
this area. This study aims to investigate the course of SBRN
and its branches and their relationship with adjacent structures.
Methods: The study was conducted on 20 upper extremities
(5-male, 6-female) fixed with formaldehyde, ethanol and glycerol
solution in the laboratory of Istanbul-University-
Cerrahpaşa, Cerrahpaşa-Faculty-of-Medicine, Department-of-
Anatomy. The distances between the points where SBRN surfaces
and branches to the fixed bony landmarks were measured
and recorded. Subsequently, the measurements were evaluated
using statistical methods.
Results: All extremities used in our study were included in the
Type-1-group according to the classification defined by İkiz
and Üçerler. The level where SBRN separated from the-radial-
nerve was distal to the-biepicondylar-line in 13 cases (65%)
and proximal to this line in 7 cases (35%). In all cases, SBRN
became superficial approximately 7.37 cm proximal to theradial-
styloid-process (RSP), then progressed distally in the
superficial fascia and divided into medial-lateral branches at an
average of 4.20 cm proximal to the-RSP. The lateral branch
(SBRN-3) reached the lateral aspect of the thumb, while the
medial branch bifurcated to innervate the first dorsal web
(SBRN-2) and extend distally to the middle phalanges of the
index and middle finger (SBRN-1).
Conclusion: Our results aligns with literature data and we didn’t
encounter rare variations. When cadavers are grouped by
gender; the ratio of the distance of the point where SBRN
becomes superficial to RSP to the forearm length was significantly
higher in men (0.33±0.03) than in women (0.29±0.09)
(p<0.05).