Nerves

2011 ◽  
Author(s):  
David Warwick ◽  
Roderick Dunn ◽  
Erman Melikyan ◽  
Jane Vadher
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Ulnar Nerve ◽  
Upper Limb ◽  
Carpal Tunnel ◽  
Clinical Assessment ◽  
Ulnar Nerve Compression ◽  
Anterior Interosseous Nerve ◽  
Tunnel Syndrome ◽  
Anterior Interosseous Nerve Syndrome

Neuroanatomy 298Examination of the nerves of the upper limb 300Clinical assessment 304Neurophysiology tests 306Nerve injury 310Compression neuropathy 314Carpal tunnel syndrome 315Proximal compression of the median nerve 318Anterior interosseous nerve syndrome 319Ulnar nerve compression at the elbow ...

Transient Proximal Median Nerve Entrapment in a Tetraplegic Hand Cyclist Following a 24-Hour Endurance Race

2021 ◽  
Author(s):  
Søren Bruno Elmgreen
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Unusual Case ◽  
Endurance Athlete ◽  
Nerve Entrapment ◽  
Pronator Teres ◽  
Anterior Interosseous Nerve ◽  
Tunnel Syndrome ◽  
Anterior Interosseous Nerve Syndrome

ABSTRACT Median nerve entrapment is a frequent disorder encountered by all clinicians at some point of their career. Affecting the distal median nerve, entrapment occurs most frequently at the level of the wrist resulting in a carpal tunnel syndrome. Median nerve entrapment may also occur proximally giving rise to the much less frequent pronator teres syndrome and even less frequent anterior interosseous nerve syndrome, which owing to the paucity of cases may prove challenging to diagnose. An unusual case of anterior interosseous syndrome precipitated by extraordinary exertion in a tetraplegic endurance athlete is presented with ancillary dynamometric, electrodiagnostic, ultrasonographic, and biochemical findings.

scholarly journals The Association Between Concomitant Ulnar Nerve Compression at the Elbow and Carpal Tunnel Syndrome

Hand ◽  
2018 ◽  
Vol 15 (3) ◽  
pp. 335-340 ◽  
Author(s):  
Brandon Shulman ◽  
Jonathan Bekisz ◽  
Christopher Lopez ◽  
Samantha Maliha ◽  
Siddharth Mahure ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Ulnar Nerve ◽  
Carpal Tunnel ◽  
Nerve Compression ◽  
Concomitant Treatment ◽  
Ulnar Nerve Compression ◽  
Median Nerve Compression ◽  
Number Of Patients ◽  
Tunnel Syndrome

Background: Many patients treated for ulnar nerve compression at the elbow (UNE) are concomitantly treated for carpal tunnel syndrome (CTS). We sought to investigate the association between the conditions. Methods: The Statewide Planning and Research Cooperative System (SPARCS) database was used to determine the number of patients with UNE concomitantly treated for CTS in New York State from 2003 to 2014. We then retrospectively reviewed each patient who received surgical treatment for UNE (n = 222 patients) or CTS (n = 1063 patients) at our tertiary care institution in 2014 and 2015 to assess concomitant treatment. Results: In the SPARCS database, the percentage of patients surgically treated for concomitant UNE and CTS steadily increased from 23% in 2003 to 45% in 2014. At our institution, 50 of 222 patients (23%) surgically treated for UNE underwent concomitant carpal tunnel releases. For concomitantly treated patients, 94% had examinations consistent with UNE and CTS, 87% of patients had median nerve compression on electrodiagnostic tests, and 72% of patients had UNE on electrodiagnostic tests. Conclusions: Most patients concomitantly treated for UNE and CTS have objective findings of both conditions. At least one-fourth of patients indicated for operative ulnar nerve release also require a carpal tunnel release—far beyond the prevalence of CTS in the general population. A diagnosis of UNE merits a comprehensive workup by the treating surgeon and a high suspicion for concomitant median nerve compression.

scholarly journals Cooling modifies mixed median and ulnar palmar studies in carpal tunnel syndrome

2007 ◽  
Vol 65 (3b) ◽  
pp. 779-782 ◽  
Author(s):  
Rogério Gayer Machado de Araújo ◽  
João Aris Kouyoumdjian
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Ulnar Nerve ◽  
Carpal Tunnel ◽  
Nerve Conduction Study ◽  
Ulnar Nerve Compression ◽  
Latency Difference ◽  
Negative Peak ◽  
Tunnel Syndrome ◽  
Ice Water ◽  
Common Variable

Temperature is an important and common variable that modifies nerve conduction study parameters in practice. Here we compare the effect of cooling on the mixed palmar median to ulnar negative peak-latency difference (PMU) in electrodiagnosis of carpal tunnel syndrome (CTS). Controls were 22 subjects (19 women, mean age 42.1 years, 44 hands). Patients were diagnosed with mild symptomatic CTS (25 women, mean age 46.6 years, 34 hands). PMU was obtained at the usual temperature, >32°C, and after wrist/hand cooling to <27°C in ice water. After cooling, there was a significantly greater increase in PMU and mixed ulnar palmar latency in patients versus controls. We concluded that cooling significantly modifies the PMU. We propose that the latencies of compressed nerve overreact to cooling and that this response could be a useful tool for incipient CTS electrodiagnosis. There was a significant latency overreaction of the ulnar nerve to cooling in CTS patients. We hypothesize that subclinical ulnar nerve compression is associated with CTS.

Saint Anthony'S Fire Or Carpal Tunnel Syndrome?

HAND ◽  
1978 ◽  
Vol os-10 (1) ◽  
pp. 82-86 ◽  
Author(s):  
Brian Fitzgerald
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Upper Limb ◽  
Carpal Tunnel ◽  
Unusual Feature ◽  
Limb Ischaemia ◽  
Median Nerve Neuropathy ◽  
Tunnel Syndrome

Summary A case of unilateral upper limb ischaemia from ergot overdosage is presented. An unusual feature was a median nerve neuropathy suggestive of carpal tunnel syndrome. The arteriographic appearances are demonstrated and management discussed.

Ulnar and Median Nerve Abnormalities in Carpal Tunnel Syndrome

2020 ◽  
Vol 22 (5) ◽  
pp. 313-322
Author(s):  
Filip Georgiew ◽  
Andrzej Maciejczak ◽  
Jakub Florek ◽  
Ireneusz Kotela
Keyword(s):  
Surgical Treatment ◽  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Ulnar Nerve ◽  
Carpal Tunnel ◽  
Control Group ◽  
Conduction Disturbances ◽  
Tunnel Syndrome ◽  
Sensory Fibers ◽  
American Academy Of Neurology

Background. Nerve compression underlying carpal tunnel syndrome (CTS) results in an increase in the threshold of superficial sensation in the area supplied by the median nerve, which is a mixed nerve dominated by sensory fibres. The distribution of sensory symptoms is strongly dependent on the degree of electrophysiological dysfunction of the median nerve. The association between carpal tunnel syndrome and ulnar nerve entrapment at wrist level is still unclear. Patho­logical processes leading to median neuropathy in CTS may affect ulnar nerve motor and sensory fibers in the Guyon canal. This may explain the extra-median spread of sensory symptoms in CTS patients. Material and methods. The study involved 88 patients (104 hands), with 70 women (83 hands) and 18 men (21 hands) aged between 25 and 77 years. 50 age- and sex-matched subjects without carpal tunnel syndrome were used as a control group. The diagnosis of carpal tunnel syndrome was made according to the criteria of the American Academy of Neurology 1993 guidelines. Based on the results of an ENG trace evaluating the degree of conduction disturbances in the median nerve, the patients were classified to one of three severity subgroups. The threshold of sensory excitability to pulsed current was determined in a test with single 100 ms rectangular pulses. Conclusions. 1. The threshold of sensation in the fingers innervated by the median and ulnar nerve is significantly lon­ger in patients with CTS than in controls. 2. Surgical treatment decreases the threshold of sensation in the fingers innervated by the median nerve. 3. Surgical treatment does not decrease the threshold of sensation in the fingers innervated by the ul­nar nerve. 4. The preoperative and postoperative threshold of sensation in the fingers innervated by the median and ulnar nerve is significantly longer in patients with severe carpal tunnel than in mild and moderate cases.

scholarly journals Symptoms Experienced by Patients with Carpal Tunnel Syndrome

1997 ◽  
Vol 24 (04) ◽  
pp. 338-342 ◽  
Author(s):  
Sanjoy K. Gupta ◽  
Timothy J. Benstead
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Upper Limb ◽  
Carpal Tunnel ◽  
Clinical Suspicion ◽  
Atypical Symptoms ◽  
Enhanced Sensitivity ◽  
Nocturnal Pain ◽  
Detailed Assessment ◽  
Tunnel Syndrome

ABSTRACT:Background:Patients with carpal tunnel syndrome (CTS) sometimes report sensory symptoms outside the median nerve distribution. This study was designed to provide a more detailed assessment of these symptoms.Methods:Patients with clinical suspicion of upper limb neuromuscular lesions were divided into those with electrodiagnostic (EDX) evidence of CTS, and those without. CTS patients with superimposed nerve abnormalities were excluded. Motor and sensory symptoms were assessed in the exclusive CTS patients.Results:Over 50% of patients with exclusive CTS reported tingling or numbness over the whole hand, ulnar or radial nerve distributions. Some patients reported symptoms proximal to the wrist. Sensory signs did not extend beyond the median nerve distribution. Numbness and nocturnal pain were predictive of positive EDX evidence of CTS.Conclusions:Sensory symptoms outside the distribution of the median nerve are common in CTS. For enhanced sensitivity in diagnosis it is useful to be aware of these “atypical” symptoms. Reports of numbness and nocturnal pain are strong indicators of CTS.

scholarly journals Application of digital infrared thermography for carpal tunnel syndrome evaluation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dougho Park ◽  
Byung Hee Kim ◽  
Sang-Eok Lee ◽  
Dong Young Kim ◽  
Yoon Sik Eom ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Skin Temperature ◽  
Median Nerve ◽  
Infrared Thermography ◽  
Ulnar Nerve ◽  
Temperature Difference ◽  
Carpal Tunnel ◽  
Physiological Changes ◽  
Thermal Variation ◽  
Tunnel Syndrome

AbstractWe investigated the thermographic findings of carpal tunnel syndrome (CTS). We enrolled 304 hands with electrodiagnostically identified CTS and 88 control hands. CTS hands were assigned to duration groups (D1, < 3 months; D2, 3‒6 months; D3, 6‒12 months; D4, ≥ 12 months) and severity groups (S1, very mild; S2, mild; S3, moderate; S4, severe). The temperature difference between the median and ulnar nerve territories (ΔM-U territories) decreased as CTS duration and severity increased. Significant differences in ΔM-U territories between the D1 and D3, D1 and D4, D2 and D4, and S1 and S4 groups (P = 0.003, 0.001, 0.001, and < 0.001, respectively) were observed. Thermal anisometry increased as CTS duration and severity increased. Significant differences in thermal anisometry between the D1 and D4 as well as the D2 and D4 groups (P = 0.005 and 0.04, respectively) were noted. Thermal anisometry was higher in the S4 group than in the S1, S2, and S3 groups (P = 0.009, < 0.001, and 0.003, respectively). As CTS progresses, skin temperature tends to decrease and thermal variation tends to increase in the median nerve-innervated area. Thermographic findings reflect the physiological changes of the entrapped median nerve.

Sign in / Sign up

Export Citation Format

Share Document