Entrapment Neuropathy of the Palmar Cutaneous Branch of the Median Nerve Concomitant with Carpal Tunnel Syndrome: A Case Report

2002 ◽  
Vol 27 (6) ◽  
pp. 583-585 ◽  
Author(s):  
T. WADA ◽  
T. IMAI ◽  
S. ISHII
Keyword(s):  
Case Report ◽  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Nerve Conduction Studies ◽  
Entrapment Neuropathy ◽  
Palmar Cutaneous Branch ◽  
Cutaneous Branch ◽  
Tunnel Syndrome ◽  
Monofilament Test

A case of the entrapment neuropathy of the palmar cutaneous branch of the median nerve, concomitant with carpal tunnel syndrome is presented. This report demonstrates that the Semmes–Weinstein monofilament test and nerve conduction studies can identify entrapment of the palmar cutaneous branch of the median nerve concomitant with carpal tunnel syndrome.

scholarly journals Entrapment of the Palmar Cutaneous Branch of the Median Nerve, A Clinical Entity distinguished from Carpal Tunnel Syndrome:

2004 ◽  
Vol 18 (3) ◽  
pp. 215-218
Author(s):  
Kimitoshi Sato ◽  
Shigekuni Tachibana ◽  
Satoru Shimizu ◽  
Masao Ishiwata ◽  
Kiyotaka Fujii
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Clinical Entity ◽  
Palmar Cutaneous Branch ◽  
Cutaneous Branch ◽  
Tunnel Syndrome

scholarly journals Is Palmar Cutaneous Branch of the Median Nerve More Swollen in Carpal Tunnel Syndrome?

2021 ◽  
Vol 45 (4) ◽  
pp. 325-330
Author(s):  
Ha Mok Jeong ◽  
Young Ha Jeong ◽  
Joon Shik Yoon
Keyword(s):  
High Resolution ◽  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
The Other ◽  
Cross Sectional ◽  
Palmar Cutaneous Branch ◽  
Cutaneous Branch ◽  
Tunnel Syndrome ◽  
Impairment Severity

Objective To investigate the characteristics of the palmar cutaneous branch of the median nerve (PCBMN) in patient with carpal tunnel syndrome (CTS) using high-resolution ultrasound.Methods Fourteen healthy volunteers (17 wrists) and 31 patients with CTS (41 wrists) were evaluated by high-resolution ultrasound. All patients were classified into three groups based on the electrophysiologic CTS impairment severity: mild, moderate, and severe. Using high-resolution ultrasound, the cross-sectional areas (CSAs) of the PCBMN were measured at the proximal wrist crease, bistyloid line, and distal wrist crease, and the largest CSA was defined as the maximal CSA.Results The maximal CSA of the PCBMN of the control, mild, moderate, and severe CTS groups were 0.27±0.08, 0.30±0.07, 0.35±0.10, and 0.47±0.13 mm2, respectively. The maximal CSA of the PCBMN was significantly larger in the severe CTS group than in the other groups.Conclusion The PCBMN could be concomitantly affected in patients with severe CTS.

scholarly journals Automatic Electrodiagnosis of Carpal Tunnel Syndrome Using Machine Learning

2021 ◽  
Vol 8 (11) ◽  
pp. 181
Author(s):  
Konstantinos I. Tsamis ◽  
Prokopis Kontogiannis ◽  
Ioannis Gourgiotis ◽  
Stefanos Ntabos ◽  
Ioannis Sarmas ◽  
...  
Keyword(s):  
Machine Learning ◽  
Decision Making ◽  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Nerve Conduction ◽  
Automatic Detection ◽  
Nerve Conduction Studies ◽  
Machine Learning Techniques ◽  
Tunnel Syndrome

Recent literature has revealed a long discussion about the importance and necessity of nerve conduction studies in carpal tunnel syndrome management. The purpose of this study was to investigate the possibility of automatic detection, based on electrodiagnostic features, for the median nerve mononeuropathy and decision making about carpal tunnel syndrome. The study included 38 volunteers, examined prospectively. The purpose was to investigate the possibility of automatically detecting the median nerve mononeuropathy based on common electrodiagnostic criteria, used in everyday clinical practice, as well as new features selected based on physiology and mathematics. Machine learning techniques were used to combine the examined characteristics for a stable and accurate diagnosis. Automatic electrodiagnosis reached an accuracy of 95% compared to the standard neurophysiological diagnosis of the physicians with nerve conduction studies and 89% compared to the clinical diagnosis. The results show that the automatic detection of carpal tunnel syndrome is possible and can be employed in decision making, excluding human error. It is also shown that the novel features investigated can be used for the detection of the syndrome, complementary to the commonly used ones, increasing the accuracy of the method.

scholarly journals Ultrasonography Findings in Severe Carpal Tunnel Syndrome

Hand ◽  
2018 ◽  
Vol 15 (1) ◽  
pp. 64-68
Author(s):  
Gideon Nkrumah ◽  
Alan R. Blackburn ◽  
Robert J. Goitz ◽  
John R. Fowler
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Carpal Tunnel Release ◽  
Nerve Conduction Studies ◽  
Cross Sectional ◽  
Younger Patients ◽  
Tunnel Syndrome ◽  
Sensory Latency ◽  
Pisiform Bone

Background: Increasing severity of carpal tunnel syndrome (CTS), as graded by nerve conduction studies (NCS), has been demonstrated to predict the speed and completeness of recovery after carpal tunnel release (CTR). The purpose of this study is to compare the cross-sectional area (CSA) of the median nerve in patients with severe and nonsevere CTS as defined by NCS. Methods: Ultrasound CSA measurements were taken at the carpal tunnel inlet at the level of the pisiform bone by a hand fellowship–trained orthopedic surgeon. Severe CTS on NCS was defined as no response for the distal motor latency (DML) and/or distal sensory latency (DSL). Results: A total of 274 wrists were enrolled in the study. The median age was 51 years (range: 18-90 years), and 72.6% of wrists were from female patients. CSA of median nerve and age were comparatively the best predictors of severity using a linear regression model and receiver operator curves. Using cutoff of 12 mm2 for severe CTS, the sensitivity and specificity are 37.5% and 81.9%, respectively. Conclusions: Ultrasound can be used to grade severity in younger patients (<65 years) with a CTS-6 score of >12.

scholarly journals The Palmar Cutaneous Branch Mimicking the Recurrent Motor Branch of the Median Nerve

2018 ◽  
Vol 10 (01) ◽  
pp. 052-053
Author(s):  
Feiran Wu ◽  
Chye Ng
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Transverse Carpal Ligament ◽  
Proximal Margin ◽  
Anatomical Variant ◽  
Motor Branch ◽  
Iatrogenic Nerve Injury ◽  
Palmar Cutaneous Branch ◽  
Cutaneous Branch ◽  
Tunnel Syndrome

AbstractWe report an unusual anatomical variant of the palmar cutaneous branch (PCB) of the median nerve in a 46-year-old man presenting with recurrent carpal tunnel syndrome. At surgery, after neurolysis, the PCB was visualized arising at the level of the proximal margin of the transverse carpal ligament, mimicking the appearance of the recurrent motor branch. To date, there has been no description of this branch arising at this level. We aim to remind surgeons of this variation and highlight the importance of maintaining vigilance to avoid iatrogenic nerve injury.

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