scholarly journals Complete Rupture of Both Heads of the Biceps Brachii Muscle Belly by Blunt Trauma

2006 ◽  
Vol 1 (4) ◽  
pp. 145-148 ◽  
Author(s):  
Herbert W. Chen ◽  
Felix S. Chew
Keyword(s):  
Blunt Trauma ◽  
Biceps Brachii ◽  
Biceps Brachii Muscle ◽  
Muscle Belly ◽  
Complete Rupture

Biceps Rupture in Water-related Sporting Activities

2010 ◽  
Vol 2 (2) ◽  
pp. 127-130
Author(s):  
Cheng H. Lo ◽  
Christopher Coombs ◽  
Simon N. Bell
Keyword(s):  
Biceps Brachii ◽  
Early Recognition ◽  
Biceps Brachii Muscle ◽  
Muscle Repair ◽  
Biceps Muscle ◽  
Muscle Belly ◽  
Injury Management ◽  
Muscle Rupture ◽  
Biceps Rupture ◽  
Sporting Activities

Closed traumatic disruptions of biceps brachii muscle belly are rarely seen. In this paper, we report two rare cases of biceps brachii muscle belly rupture sustained while water-skiing or wakeboarding and discuss the mechanism of injury, management and outcomes after a literature review. A review of published articles revealed only three previously reported cases of water skiing related biceps muscle rupture. It is important to be vigilant of these injuries, given that early recognition and operative intervention with or without direct muscle repair may optimise outcomes.

scholarly journals Variations of Biceps Brachii Muscle and its Clinical Importance

2020 ◽  
Author(s):  
Jolly Agarwal ◽  
Krishna Gopal
Keyword(s):  
Biceps Brachii ◽  
Clinical Importance ◽  
Uttar Pradesh ◽  
Nerve Supply ◽  
Biceps Brachii Muscle ◽  
Muscle Belly ◽  
Iatrogenic Injuries ◽  
Pronator Teres ◽  
Radial Tuberosity ◽  
Neurovascular Structures

Introduction: Biceps brachii is one of the functionally important muscles of front of the arm. As the name indicates biceps brachii is having two heads of origin and it inserts on the posterior surface of radial tuberosity. Variations may be present in the form of additional heads of origin or they may be present at its insertion. These variations may affect action of muscle and may cause compression of nearby neurovascular structures. Aim: To determine the variation in anatomy of biceps brachii with respect to its origin, insertion and its nerve supply. Materials and Methods: The present osteological study was conducted on 32 arms of embalmed cadavers (including both right and left) of Department of Anatomy, SRMS IMS, Bareilly, Uttar Pradesh, India from 2015-2018 period. The dissection of arm was done according to standard guidelines and biceps brachii muscle was cleaned. The origin, insertion and nerve supply of biceps brachii muscle was observed and noted for any variation. Results: In the present study an additional head of origin of biceps on right and left side of two cadavers were found. In present study inferomedial origin of biceps brachii was found. The present study also showed the presence of musculotendinous slip at its insertion. This slip was going towards the muscle belly of pronator teres. Conclusion: There are numerous variations seen in biceps brachii which can put a surgeon in dilemma and it may result in iatrogenic injuries. Hence, it is important to have a knowledge about its variations so that such injuries can be prevented.

scholarly journals Biceps Brachii Muscle with Third Head a Case Study

2018 ◽  
Vol 35 (01) ◽  
pp. 14-16
Author(s):  
S. Bansal ◽  
V. Budhiraja ◽  
S. Swami ◽  
R. Gupta ◽  
N. Gaur
Keyword(s):  
Adult Male ◽  
Standard Method ◽  
Biceps Brachii ◽  
Nerve Supply ◽  
Biceps Brachii Muscle ◽  
Muscle Belly ◽  
Iatrogenic Injuries ◽  
Male Cadaver ◽  
Medical Undergraduates

Introduction Biceps brachii muscle belongs to the flexor group of muscles in arm. As Biceps brachii is double headed muscle. It is one of the known variable muscles of human body in terms of number and morphology. Material and Method During routine human cadaveric dissection for the purpose of teaching medical undergraduates in our department. The upper limb of embalmed adult male cadaver was dissected as per the standard method to note the origin, insertion, and nerve supply of biceps brachii. Results The three headed biceps brachii was found unilaterally on right side in adult male cadaver. The long and short head had normal origin, but third head originated from humerus below insertion of coracobrachialis and inserted with main muscle belly and innervated by musculocutaneus nerve. Conclusion Variant biceps brachii may confuse a surgeon who performs procedures on the arm and may lead to iatrogenic injuries. The surgeons and traumatologists have to keep such muscular variations in mind. So the knowledge of existence of its variation is important for anaesthetists and surgeons.

scholarly journals Rupture of the Short Head of the Biceps Brachii Muscle Belly Caused by a Rock-Climbing Accident

2020 ◽  
Vol 31 (3) ◽  
pp. 327-331
Author(s):  
Michael Simon ◽  
Christoph Lutter ◽  
Volker Schöffl
Keyword(s):  
Biceps Brachii ◽  
Rock Climbing ◽  
Biceps Brachii Muscle ◽  
Muscle Belly

scholarly journals Is it the coracobrachialis superior muscle, or is it an unidentified rare variant of coracobrachialis muscle?

2021 ◽  
Author(s):  
Łukasz Olewnik ◽  
Nicol Zielinska ◽  
Łukasz Gołek ◽  
Paloma Aragonés ◽  
Jose Ramon Sanudo
Keyword(s):  
Case Report ◽  
Rare Variant ◽  
Shoulder Joint ◽  
Biceps Brachii ◽  
Coracoid Process ◽  
Biceps Brachii Muscle ◽  
Shoulder Region

AbstractThe coracobrachialis muscle (CBM) originates from the apex of the coracoid process, in common with the short head of the biceps brachii muscle, and from the intermuscular septum. The CBM demonstrates variability in both the proximal and distal attachment, with some extremely rare varieties, such as the coracobrachialis superior, coracobrachialis longus and coracocapsularis muscle. This case report describes an extremely rare variant of the coracobrachialis superior muscle, or a very rare variant of the CBM. Our findings highlight the importance of muscle variants in the shoulder region, especially the coracoid region, and are significant for radiologists, anatomists, physiotherapists and surgeons specializing in the shoulder joint.

scholarly journals Older Adults Exhibit a Reduced Ability to Fully Activate Their Biceps Brachii Muscle

1999 ◽  
Vol 54 (5) ◽  
pp. M249-M253 ◽  
Author(s):  
G. H. Yue ◽  
V. K. Ranganathan ◽  
V. Siemionow ◽  
J. Z. Liu ◽  
V. Sahgal
Keyword(s):  
Older Adults ◽  
Biceps Brachii ◽  
Biceps Brachii Muscle

scholarly journals Muscle length and joint angle influence spinal but not corticospinal excitability to the biceps brachii across forearm postures

2019 ◽  
Vol 122 (1) ◽  
pp. 413-423 ◽  
Author(s):  
Davis A. Forman ◽  
Daniel Abdel-Malek ◽  
Christopher M. F. Bunce ◽  
Michael W. R. Holmes
Keyword(s):  
Isometric Contraction ◽  
Elbow Joint ◽  
Joint Angle ◽  
Biceps Brachii ◽  
Motor Evoked Potentials ◽  
Muscle Length ◽  
Elbow Flexion ◽  
Corticospinal Excitability ◽  
Biceps Brachii Muscle ◽  
Spinal Excitability

Forearm rotation (supination/pronation) alters corticospinal excitability to the biceps brachii, but it is unclear whether corticospinal excitability is influenced by joint angle, muscle length, or both. Thus the purpose of this study was to separately examine elbow joint angle and muscle length on corticospinal excitability. Corticospinal excitability to the biceps and triceps brachii was measured using motor evoked potentials (MEPs) elicited via transcranial magnetic stimulation. Spinal excitability was measured using cervicomedullary motor evoked potentials (CMEPs) elicited via transmastoid electrical stimulation. Elbow angles were manipulated with a fixed biceps brachii muscle length (and vice versa) across five unique postures: 1) forearm neutral, elbow flexion 90°; 2) forearm supinated, elbow flexion 90°; 3) forearm pronated, elbow flexion 90°; 4) forearm supinated, elbow flexion 78°; and 5) forearm pronated, elbow flexion 113°. A musculoskeletal model determined biceps brachii muscle length for postures 1–3, and elbow joint angles ( postures 4–5) were selected to maintain biceps length across forearm orientations. MEPs and CMEPs were elicited at rest and during an isometric contraction of 10% of maximal biceps muscle activity. At rest, MEP amplitudes to the biceps were largest during supination, which was independent of elbow joint angle. CMEP amplitudes were not different when the elbow was fixed at 90° but were largest in pronation when muscle length was controlled. During an isometric contraction, there were no significant differences across forearm postures for either MEP or CMEP amplitudes. These results highlight that elbow joint angle and biceps brachii muscle length can each independently influence spinal excitability. NEW & NOTEWORTHY Changes in upper limb posture can influence the responsiveness of the central nervous system to artificial stimulations. We established a novel approach integrating neurophysiology techniques with biomechanical modeling. Through this approach, the effects of elbow joint angle and biceps brachii muscle length on corticospinal and spinal excitability were assessed. We demonstrate that spinal excitability is uniquely influenced by joint angle and muscle length, and this highlights the importance of accounting for muscle length in neurophysiological studies.

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