The Effect of Long-Distance Bicycling on Ulnar and Median Nerves

2005 ◽  
Vol 33 (8) ◽  
pp. 1224-1230 ◽  
Author(s):  
Venu Akuthota ◽  
Christopher Plastaras ◽  
Kirstin Lindberg ◽  
John Tobey ◽  
Joel Press ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Ulnar Nerve ◽  
Carpal Tunnel ◽  
Sensory Nerve ◽  
Case Series ◽  
Hand Position ◽  
Long Distance ◽  
Deep Branch ◽  
Tunnel Syndrome ◽  
Cycling Event

Background Distal ulnar neuropathies have been identified in cyclists because of prolonged grip pressures on handlebars. The so-called cyclist palsy has been postulated to be an entrapment neuropathy of the ulnar nerve in the Guyon canal of the wrist. Previous studies utilizing nerve conduction studies have typically been either case reports or small case series. Hypothesis Electrophysiologic changes will be present in the ulnar and median nerves after a long-distance multiday cycling event. Study Design Cohort study; Level of evidence, 2. Methods A total of 28 adult hands from 14 subjects underwent median and ulnar motor and sensory nerve conductions, which were performed on both hands before and after a 6-day, 420-mile bike tour. A ride questionnaire was also administered after the ride, evaluating the experience level of the cyclist, equipment issues, hand position, and symptoms during the ride. Results Distal motor latencies of the deep branch of the ulnar nerve to the first dorsal interosseous were significantly prolonged after the long-distance cycling event. The median motor and sensory studies as well as the ulnar sensory and motor studies of the abductor digiti minimi did not change significantly. Electrophysiologic and symptomatic worsening of carpal tunnel syndrome was observed in 3 hands, with the onset of carpal tunnel syndrome in 1 hand after the ride. Conclusion Long-distance cycling may promote physiologic changes in the deep branch of the ulnar nerve and exacerbate symptoms of carpal tunnel syndrome.

Carpal Tunnel Syndrome Caused by a Simple Ganglion

HAND ◽  
1981 ◽  
Vol os-13 (2) ◽  
pp. 164-166 ◽  
Author(s):  
F. J. Harvey ◽  
J. S. Bosanquet
Keyword(s):  
Case Report ◽  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Ulnar Nerve ◽  
Carpal Tunnel ◽  
Peripheral Nerves ◽  
Nerve Compression ◽  
Median Nerve Compression ◽  
Deep Branch ◽  
Tunnel Syndrome

The compression of peripheral nerves by simple ganglia is a well recognized and documented clinical entity. It has been reported where ganglia have been associated with the ankle, knee and elbow joints (D. M. Brooks, 1952). It is probably best known in compression of the deep branch of the ulnar nerve in the wrist, first described by Seddon (Seddon H. J. 1952). Median nerve compression at the wrist, however, that causes a carpal tunnel syndrome would appear to be well recognized but poorly documented. Brooks (1952) described a case and until now, no others have been recorded in the literature. This case report describes such median nerve involvement with some interesting features.

Electrophysiological and Clinical Improvement in Non-Invasive Treatment of Carpal Tunnel Syndrome

2020 ◽  
Vol 20 ◽  
Author(s):  
Riccardo Marvulli ◽  
Giancarlo Ianieri ◽  
Grazia Devenuto ◽  
Marta Falcicchio ◽  
Giulia A. Gallo ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Sleep Quality ◽  
Conduction Velocity ◽  
Carpal Tunnel ◽  
Nerve Conduction ◽  
Nerve Conduction Velocity ◽  
Pantothenic Acid ◽  
Sensory Nerve ◽  
Sensory Nerve Conduction Velocity ◽  
Tunnel Syndrome

Background and Objective: Carpal tunnel syndrome (CTS) is the most common form of nerve entrapment. Clinically, various signs and symptoms compare due to overexposure to mechanical vibrations transmitted to the wrist bones and cartilage, resulting in compression of the sensory and motor nerve fibers of median nerve. Early symptoms include nocturnal paresthesia and electromyography reveals reduced sensory nerve conduction velocity. Aim of this study was to evaluate the efficacy of a dietary integrator composed of acetyl-L-carnitine, α-lipoic acid,quercetin, bromelain, pantothenic acid, C and B1 and B2 and B6 and B12 vitamins in patients with early (minimal) carpal tunnel syndrome. Methods: 36 patients (28 female and 8 male) with early CTS characterized by sensory nerve demyelination and inflammation of the transverse carpal ligament. Patients were divided into two groups, group A (18 patients received physical therapy) and group B (18 patients, received physical therapy and an oral integrator). Clinical (sleep quality questionnaire to measure severity of paresthesia) and neurophysiological assessment (Sensory Nerve Conduction Velocity) performed at baseline, and then at 30 and 60 days after treatment. Results: Sleep quality and Sensory Nerve Conduction Velocity data analysis show improvement in both groups at 30 and 60 days, with statistically difference between them in both time of analysis. Conclusions: In the early CTS, with sensory fibers damage, use of dietary integrator, such as Micronil Dol®, composed composed of acetyl-L-carnitine, α-lipoic acid,quercetin, bromelain, pantothenic acid, C and B1 and B2 and B6 and B12 vitamins can be effective in quick recovery of median nerve sensory.

scholarly journals Carpal tunnel syndrome: long-term nerve conduction studies in 261 hands

2009 ◽  
Vol 67 (1) ◽  
pp. 69-73 ◽  
Author(s):  
Dante Guilherme Velasco Hardoim ◽  
Guilherme Bueno de Oliveira ◽  
João Aris Kouyoumdjian
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Carpal Tunnel ◽  
Nerve Conduction ◽  
Sensory Nerve ◽  
Nerve Conduction Studies ◽  
Sensory Nerve Action ◽  
Tunnel Syndrome ◽  
The Mean ◽  
Compound Action

OBJECTIVE: To compare a long-term carpal tunnel syndrome (CTS) on nerve conduction studies (NCS) in hands treated non-surgically. METHOD: We retrospectively selected 261 symptomatic CTS hands (166 patients), all of them confirmed by NCS. In all cases, at least 2 NCS were performed in an interval greater than 12 months. Cases with associated polyneuropathy were excluded. NCS parameters for CTS electrodiagnosis included a sensory conduction velocity (SCV) <46.6 m/s (wrist to index finger, 14 cm) and distal motor latency (DML) >4.25 ms (wrist to APB, 8 cm). RESULTS: 92.8% were women; mean age was 49 years (20-76); the mean interval between NCS was 47 months (12-150). In the first exam, the median sensory nerve action potential (SNAP) and the compound action muscular potential were absent in 9.8% and 1.9%, respectively. In the second/last exam, SCV worsened in 54.2%, remained unchanged in 11.6% and improved in 34.2%. SNAP amplitude worsened in 57.7%, remained unchanged in 13.1% and improved in 29.2%. DML worsened in 52.9%, remained unchanged in 7.6% and improved in 39.5%. Overall, NCS parameters worsened in 54.9%, improved in 34.3% and remained unchanged in 10.8%. CONCLUSION: Long-term changing in NCS of CTS hands apparently were not related to clinical symptomatology and could lead to some difficulty in clinical correlation and prognosis. Aging, male gender and absent SNAP were more related to NCS worsening, regardless the mean interval time between the NCS.

scholarly journals When is needle examination of thenar muscle necessary in the evaluation of mild and moderate carpal tunnel syndrome?

2021 ◽  
Vol 67 (4) ◽  
pp. 518-525
Author(s):  
Zuhal Özişler ◽  
Müfit Akyüz
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Spontaneous Activity ◽  
Carpal Tunnel ◽  
Nerve Conduction ◽  
Sensory Nerve ◽  
Symptom Duration ◽  
Thenar Muscle ◽  
Distal Motor Latency ◽  
Motor Latency ◽  
Tunnel Syndrome

Objectives: This study aims to evaluate the predictors of standard nerve conduction study (NCS) parameters in determining the presence of axonal loss by means of spontaneous activity in patients with mild and moderate carpal tunnel syndrome (CTS). Patients and methods: Between May 2015 and April 2018, a total of 118 patients (11 males, 107 females; mean age: 52.3±10.6 years; range, 27 to 79 years) who underwent electrophysiological studies and were diagnosed with CTS were included. Demographic data of the patients including age, sex, and symptom duration were recorded. Electrodiagnostic studies were performed in all patients. All the needle electromyography (EMG) findings were recorded, but only the presence or absence of spontaneous EMG activities was used as the indicator of axonal injury. Results: In 37 (31.4%) of the patients, spontaneous activity was detected at the thenar muscle needle EMG. No spontaneous activity was observed in any of 43 (36.4%) patients with normal distal motor latency (DML). There were significant differences in DMLs, compound muscle action potential (CMAP) amplitudes, sensory nerve action potentials amplitudes, and sensory nerve conduction velocities between the groups with and without spontaneous activity (p<0.05). The multiple logistic regression analysis revealed that DML was a significant independent risk variable in determining presence of spontaneous activity. The most optimal cut-off value for median DML was calculated as 4.9 ms. If the median DML was >4.9 ms, the relative risk of finding spontaneous activity on thenar muscle needle EMG was 13.5 (95% CI: 3.6-51.2). Conclusion: Distal motor latency is the main parameter for predicting the presence of spontaneous activity in mild and moderate CTS patients with normal CMAP. Performing needle EMG of the thenar muscle in CTS patients with a DML of >4.9 ms may be beneficial to detect axonal degeneration in early stages.

scholarly journals PROFILE OF PATIENTS WITH CARPAL TUNNEL SYNDROME TREATED AT A REFERRAL SERVICE

2020 ◽  
Vol 28 (3) ◽  
pp. 117-120
Author(s):  
HENVER RIBEIRO DE PAIVA FILHO ◽  
VALDÊNIA DAS GRAÇAS NASCIMENTO PAIVA ◽  
ELIAS FELIX DE OLIVEIRA ◽  
MURILO ANTÔNIO ROCHA
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Carpal Tunnel ◽  
Case Series ◽  
Hand Surgery ◽  
Elementary Level ◽  
Level Of Evidence ◽  
Women Smokers ◽  
Referral Service ◽  
Tunnel Syndrome ◽  
Epidemiological Characteristics

ABSTRACT Objective: To describe the clinical and epidemiological characteristics of people diagnosed with carpal tunnel syndrome (CTS) treated at a hand surgery outpatient clinic of a regional referral service. Methods: Interview and specific medical examination of 150 people diagnosed with CTS underwent, and statistical analysis of the results obtained. Results: Women smokers, in the fifth decade of life, married, overweight and educated until the elementary level prevailed in our study. Arterial hypertension and diabetes were the most reported comorbidities, and Durkan’s test was the most prevalent. Conclusion: CTS is prevalent in women in their fifth decade of life, with bilateral involvement and high school. The hypertension and diabetes are the most common diseases in people with CTS. Level of evidence IV, Case series.

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