scholarly journals Lumbrical Muscle

2020 ◽  
Author(s):  
Keyword(s):  
2021 ◽  
Vol 49 (01) ◽  
pp. 079-087
Author(s):  
Esther Fernández Tormos ◽  
Fernando Corella Montoya ◽  
Blanca Del Campo Cereceda ◽  
Montserrat Ocampos Hernández ◽  
Teresa Vázquez Osorio ◽  
...  

AbstractRecurrence of carpal tunnel syndrome implies the reappearance of symptoms after release surgery. If the cause of recurrence is not an incomplete release, but a traction neuritis, the tendency is to add to the revision surgery of the carpal tunnel the use of flaps to cover the median nerve. These flaps establish a physical barrier between the nerve and the rest of the adjacent structures, preventing adhesions, and providing neovascularization and better nerve sliding.In the present work, we detail a revision surgery in which the first lumbrical muscle is used as a covering flap. This flap has two benefits. Firstly, it acts as a vascularized coverage for the median nerve (avoiding the formation of fibrosis and favoring its sliding); secondly, a structure that takes up space is removed from the carpal tunnel, thus reducing the pressure within it.Along with the explanation of the technique, the present article provides a detailed description of the anatomical variability of the first lumbrical muscle and its vascularization, as well as the results of a cadaveric study on the location of the vascular pedicle of the first lumbrical muscle.


2019 ◽  
Vol 97 (5) ◽  
pp. 429-435 ◽  
Author(s):  
Ian C. Smith ◽  
Rene Vandenboom ◽  
A. Russell Tupling

The amount of calcium released from the sarcoplasmic reticulum in skeletal muscle rapidly declines during repeated twitch contractions. In this study, we test the hypothesis that caffeine can mitigate these contraction-induced declines in calcium release. Lumbrical muscles were isolated from male C57BL/6 mice and loaded with the calcium-sensitive indicator, AM-furaptra. Muscles were then stimulated at 8 Hz for 2.0 s in the presence or absence of 0.5 mM caffeine, at either 30 °C or 37 °C. The amplitude and area of the furaptra-based intracellular calcium transients and force produced during twitch contractions were calculated. For each of these measures, the values for twitch 16 relative to twitch 1 were higher in the presence of caffeine than in the absence of caffeine at both temperatures. We conclude that caffeine can attenuate contraction-induced diminutions of calcium release during repeated twitch contractions, thereby contributing to the inotropic effects of caffeine.


HAND ◽  
1981 ◽  
Vol os-13 (1) ◽  
pp. 87-91 ◽  
Author(s):  
A. Nather ◽  
R. W. H. Pho

A rare case of carpal tunnel syndrome due to an anomalous second lumbrical muscle passing through the carpal tunnel is described. Its presentation as an organising haematoma in the anomalous muscle due to trauma precipitating the syndrome has not been reported in the literature previously. The anomalous muscle with its contained haematoma was excised with complete relief of symptom.


2014 ◽  
Vol 39 (1) ◽  
pp. 149-155 ◽  
Author(s):  
Keming Wang ◽  
Evan P. McGlinn ◽  
Kevin C. Chung

2018 ◽  
Vol 34 (2) ◽  
pp. 166-167
Author(s):  
C. Lutter ◽  
A. Schweizer ◽  
V. Schöffl ◽  
T. Bayer

2002 ◽  
Vol 31 (2) ◽  
pp. 85-98 ◽  
Author(s):  
W. KLOMKLEAW ◽  
Y. KASASHIMA ◽  
G. A. FULLER ◽  
A. KOBAYASHI ◽  
T. YOSHIHARA ◽  
...  

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