Bifid Median Nerve in Patients With Carpal Tunnel Syndrome

Bayrak, İlkay Koray; Bayrak, Ayşe; Kale, Melike; Türker, Hande; Diren, B.

doi:10.7863/jum.2008.27.8.1129

Cited by 98 publications

(143 citation statements)

References 21 publications

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“…In contrast with this study, Bayrak et al, 11 reported a higher prevalence of BMN in patients with CTS (19% in CTS and 9% in control group) in their study having the largest sample among studies investigating the association between BMN and CTS. They suggested that BMN might facilitate compression of the nerve in the carpal tunnel due to its relatively higher CSA compared with a non-BMN.…”

Section: Discussioncontrasting

confidence: 46%

“…1 In previous studies, BMN was reported to be associated with CTS due to its relatively higher cross sectional area (CSA) compared to a non-BMN which may lead compression in carpal tunnel. 1,[11][12][13] However, in a more recent study Granata et al, 14 reported similar frequencies of BMN in patients with CTS and the healthy control group. Hence, we aimed to determine the BMN frequency in patients with CTS and healthy control group, and to investigate the aforementioned association between CTS and BMN in our population.…”

mentioning

confidence: 87%

“…Bayrak et al 11 also reported that the possibility of anatomical median nerve variation should be taken into consideration in patients with unilateral or severe CTS in non-dominant hand. Indeed, BMN was unilateral in a high proportion of the CTS patients in this study.…”

Section: Discussionmentioning

confidence: 99%

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The Association Between Bifid Median Nerve and Carpal Tunnel Syndrome: Is it Really a Risk Factor?

et al. 2014

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Objectives: This study aims to determine the bifid median nerve (BMN) frequency in patients with carpal tunnel syndrome (CTS) and to investigate the possible association between CTS and BMN in this patient population. Patients and methods: A total of 194 wrists of 131 patients in whom CTS was diagnosed clinically and electrophysiologically and 73 healthy volunteers without any symptom or sign of CTS were examined with ultrasonography. Results: Bifid median nerve was detected in 22 wrists (11.3%) in CTS group and 15 wrists (10.2%) in the control group. There was no statistically significantly difference in the incidence of BMN among patients with CTS and healthy volunteers (p=0.891). Conclusion: Our study results showed that the incidence of BMN was similar among CTS patients and healthy volunteers. Therefore, we conclude that BMN may not be a predisposing factor for CTS.

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Section: Discussioncontrasting

confidence: 46%

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confidence: 87%

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The Association Between Bifid Median Nerve and Carpal Tunnel Syndrome: Is it Really a Risk Factor?

et al. 2014

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“…The various differences of the incidence maybe because of various diagnostic tools or ethnic groups. In addition, several reports have suggested that the bifid median nerve can be a causative factor for carpal tunnel syndrome 8 .…”

Section: Discussionmentioning

confidence: 99%

“…One of the hypotheses is that the bifid median nerve may facilitate compression of the nerve in the carpal tunnel because of larger summated cross-sectional area compared with the cross-sectional area of a non-bifid median nerve 8 . In contrast, some authors recently reported that the bifid median nerve is not an independent risk factor for development of carpal tunnel syndrome 7,9 .…”

Section: Discussionmentioning

confidence: 99%

Thrombosed Persistent Median Artery with Bifid Median Nerve Causing Acute Carpal Tunnel Syndrome: A Case Report

Kim

Park

Choi³

2017

Arch Hand Microsurg

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Among the numerous causes of carpal tunnel syndrome, thrombosed persistent median artery with bifid median nerve is extremely rare. Our presentation shows that an unusual case and surgical outcome of thrombosed persistent median artery with bifid median nerve causing acute carpal tunnel syndrome. Care has to be taken that identification of abnormal anatomy in the carpal tunnel is essential, especially in abruptly occurred carpal tunnel syndrome. We suggest that Doppler ultrasound examination is very useful in an outpatient clinic-based for identification of abnormal structure, which makes more quickly and accurate diagnosis than magnetic resonance image.

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Bifid median nerve in a patient with carpal tunnel syndrome: A case report and literature review

Narayan

2016

Australas J Ultrason Med

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A middle‐aged man with Carpal tunnel syndrome without any known predisposing risk factors is presented. Ultrasonography demonstrated two structures within the left carpal tunnel with similar echo pattern as median nerve, thus confirming an anatomical variation in the median nerve, described in the literature as bifid median nerve. The knowledge of the existence of bifid median nerve is an important factor in planning surgical decompression of median nerve to avoid nerve and persistent median artery injuries and/or potential relapse if decompression of both branches is not carried out. In addition, this knowledge is important in deciding whether to inject above the bifurcation or into the epineurial of individual nerve trunks in the setting of planned symptomatic corticosteroid injections. In conclusion, bifid median nerve is an anatomic variant that may contribute to carpal tunnel syndrome and can be demonstrated ultrasonographically. It is important to be aware of this anomaly when planning carpal tunnel release surgery and symptomatic corticosteroid injections.

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Bifid Median Nerve in Patients With Carpal Tunnel Syndrome

Cited by 98 publications

References 21 publications

The Association Between Bifid Median Nerve and Carpal Tunnel Syndrome: Is it Really a Risk Factor?

The Association Between Bifid Median Nerve and Carpal Tunnel Syndrome: Is it Really a Risk Factor?

Thrombosed Persistent Median Artery with Bifid Median Nerve Causing Acute Carpal Tunnel Syndrome: A Case Report

Bifid median nerve in a patient with carpal tunnel syndrome: A case report and literature review

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