Anatomical relations of the superficial sensory branches of the radial nerve: a cadaveric study with clinical implications

Abstract

BackgroundAnatomically, it is difficult to give a systematic description of the superficial branch of the radial nerve (SBRN). Our aim was to describe the exact relationship of the SBRN to fixed bony points of radial styloid and Lister's tubercle, and to the cephalic vein. We also compared our data with other international studies.MethodsThe study was a descriptive anatomical study. Twenty-five forearms were dissected. Measurements were made from predefined fixed reference points.ResultsThe mean distance to the point of emergence of the nerve from the radial styloid was 8.54 cm (SD = 1.32). The nerve branched at a mean distance of 5.57 cm (SD = 1.43) from the radial styloid. The mean distance to the point where the most medial and most lateral branches of the nerve crossing the wrist joint, measured from the Lister's tubercle were 2.51 cm (SD = 0.53) and 3.90 cm (SD = 0.64). In 17 specimens(68%) cephalic vein crossed the SBRN superficially once. Mean distance from the radial styloid to the most distal point where the vein crossed the nerve was 5.10 cm. Diffefrence between mean distance to the point of emergence and branching point, when compared with other international studies were not statistically significant. (P value > 0.05)ConclusionsWe recommend avoiding transverse incisions in the snuffbox region between 2.51 cm and 3.90 cm from the Listers tubercle. We also recommend avoiding cannulation of the cephalic vein in the distal forearm.

Vascular branches from cutaneous nerve of the forearm and hand: Application to better understanding raynaud's disease

“…1b). The landmarks and reference lines were determined by reference to the method described by Abrams et al (1992) and Samarakoon et al (2011).…”

Ramo Dorsal del Nervio Ulnar: un Aporte Significativo a la Inervación Sensitiva del Dorso de la Mano

“…Las caracterís-ticas de la comunicación observadas en todas las muestras, coinciden con el tipo I descrito por Loukas et al Similar resultado fue lo que describió Zaki (2006), al encontrar comunicación entre el RSNR y el RDNU en el 65% de los casos, sin embargo, no entrega detalles de las características del ramo comunicante. Por lo demás ninguno de los otros autores comoTellioglu et al (2000); Bianchi (2002); Ikiz & Uçerler (2004); Huanmanop et al(2007); Klitscher et al (2007); Robson et al (2008); Tryfonidis et al (2010); Samarakoon et al (2011);Casoli et al;Goto et al y Cavusoglu et al hicieron referencia a la existencia de la comunicación entre estos ramos. Se desconoce la existencia de estas diferencias tan notables, ya sea por tamaño de la muestra, variación individual de los cadáveres o método de detección.…”

Anatomical Snuffbox and it Clinical Significance: A Literature Review

“…These branches originated always distally to the tendon of extensor pollicis brevis muscle. Samarakoon et al (2011) dissected 25 wrists and forearms, and observed that in most of the samples (68%), the CV and the SBRN crossed each other at least once, and even twice. In a study by Robson et al (2008), the cephalic vein was closely related (<2 mm) with the SBRN in 80% of cases (20 of 25 dissections).…”