Normative Ulnar Nerve Conduction Study: Comparison of Two Measurement Methods

Haghighat, Shila; Mahmoodian, Amir Ebrahim; Kianimehr, Lida

doi:10.4103/abr.abr_91_16

Cited by 1 publication

(1 citation statement)

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“…So, in this study, the early screening of ulnar nerve entrapment among cell phone users was planned. The mean motor conduction velocity recorded in this study among cell phone users was around 56 ± 4.9 m/second, which was lower than the normative data reported by Haghighat et al (2018) [ 12 ]. Prolonged latency (>4 seconds for both S1 and S2) and the lowered conduction velocity of the ulnar nerve indicate nerve compression.…”

Section: Discussioncontrasting

confidence: 84%

Ulnar Nerve Entrapment Among Cell Phone Users: Cell Phone Elbow (Cubital Tunnel Syndrome)

Ukkirapandian,

VP,

Pawar

et al. 2024

Cureus

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Introduction Cell phone usage has tremendously increased, and to make usage comfortable, accessories such as Bluetooth earphones are available. But still, most people use cell phones for a long period of time by flexing their elbows near their ears. When the users flex the elbow to hold the phone near the ear, this results in increased pressure over the ulnar nerve since the ulnar nerve runs superficially at the level of the elbow. The extensive pressure over the ulnar nerve may result in nerve compression, which results in cubital tunnel syndrome, recently called the cell phone elbow. Hence, this study was undertaken to assess the ulnar nerve function among cell phone users in relation to the duration of usage. Materials and methods Young healthy volunteers (n = 30) aged between 20 and 25 years were selected for the study in order to prevent age-related neuropathic changes. After getting a history of mobile phone usage, the subjects were asked about neural symptoms such as tingling, numbness, and pain while using cell phones. Ulnar nerve function was assessed by Froment's sign and Wartenberg's sign. An ulnar nerve conduction study was done. Results Seventy percent of the subjects (n = 21) out of the 30 subjects participating in the study reported tingling and numbness during mobile phone usage. But Froment's sign and Wartenberg's sign were negative for all the subjects. There was a significant positive correlation (r = 0.913 and r = 0.8253) between the duration of mobile phone use and latency and a negative correlation (r = -0.8439) with conduction velocity. Conclusion The malposition of the elbow during prolonged cell phone use results in ulnar nerve entrapment. The continuous usage of cell phones without rest by flexing the elbow causes nerve compression. This can be taken as a warning sign to prevent further damage.

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Section: Discussioncontrasting

confidence: 84%