An accessory brachialis muscle associated with abnormal arrangement of structures in the cubital fossa

Akhtar, Md. Jawed; Fatima, Nafees; Kumar, Sanjay; Kumar, Binod; Kumar, Vinod

doi:10.18203/2320-6012.ijrms20151469

Cited by 5 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the lower part, they passed superficially to the brachialis muscle but lies deep to this additional slip of muscle. After separating the fibres of muscles it was found that median nerve was present just lateral to the brachial artery in the cubital fossa [3].…”

Section: Resultsmentioning

confidence: 99%

Study of Brachialis Muscle: Additional Slip and Its Clinical Significance

Jayakumar¹,

Paramasivam²,

Bajpe³

2018

IJAR

View full text Add to dashboard Cite

Background: Brachialis is a muscle of anterior compartment of arm. It has two heads. Superficial head inserting into ulnar tuberosity innervated by musculocutaneous nerve, the deep head inserts into coronoid process of ulna and supplied by radial nerve. Neuromuscular compression due to presence of additional slip of brachialis forms the basis of this study.Materials and methods: Study was done in 60 adult human cadaveric upper limbs of both the sides irrespective of sex in the Department of Anatomy, Kempegowda institute of medical sciences (KIMS), Bangalore and other medical colleges nearby. Presence of additional slips of brachialis with important and interesting relations was found which were comparable with previous studies. As qualitative method was done, Descriptive statistics were utilized.Results: Additional slips were present in 21.6%. It was found mainly in the left upper limbs in 69.2% and rest 30.7% are present in right side limbs. Among 13 specimens, additional slips originated mainly from the anteromedial aspect in 84.6% and in 15.3% it originated from the anterolateral aspect of main brachialis. Additional slips were innervated mostly by the musculocutaneous nerve in 69.2%, median nerve in 15.3% and radial nerve in 7.6%. No innervation was observed in one specimen. Conclusion:Knowledge of additional slips and its origin and course is very important for identifying the cause for neurovascular symptoms due to compression of neurovascular structures

show abstract

Section: Resultsmentioning

confidence: 99%

Study of Brachialis Muscle: Additional Slip and Its Clinical Significance

Jayakumar¹,

Paramasivam²,

Bajpe³

2018

IJAR

View full text Add to dashboard Cite

show abstract

“…The failure of their apoptosis may contribute to the development of accessory muscles. It was reported that any changes in the structure of myotome or the somite, or in the distribution of adhesion molecules in the myoblasts may lead to muscular variations, which includes the accessory muscles (16). This is the developmental basis of the presence of accessory muscles.…”

Section: Discussionmentioning

confidence: 99%

Incidence of Accessory Brachialis Muscle, Variations in its Insertion and Relation with Surrounding Neurovascular Structures

Tonse

Pai

Prabhu

et al. 2021

Muscle Ligaments and Tendons J

View full text Add to dashboard Cite

Background. Accessory brachialis (AcBr) muscle can compromise the surrounding neurovascular structures due its variable insertion. In this context, the objective of the present study was to determine the incidence of AcBr muscle, variation of its insertion and relation with surrounding neurovascular structures. Methods. The study was performed in 84 formalin fixed human cadaveric upper limb specimens, which were available in the department of anatomy. The insertion pattern of the AcBr muscle was divided into 5 types (type 1, type 2, type 3a, type 3b and type 4). Results. It was observed that, AcBr muscle was present in 46 (54.8%) cases. In 31 cases (67.4%), this muscle inserted into the main tendon of brachialis muscle (type 1). It joined the tendon of biceps brachii (type 2) in 6 cases (13%). In 7 cases (15.2%), it gave a slip which joined the supinator muscle after passing deep to the radial recurrent vessels (type 3a). In a single case (2.2%), the slip merged with the supinator after passing superficial to the radial recurrent vessels (type 3b). In one case (2.2%), it gave muscular fibres which crossed the radial nerve and merged with the brachioradialis muscle (type 4). Conclusions. The present study observed higher frequency of incidence of AcBr muscle, however, the limitation of this study is that the small number of specimens studied. The findings will be more accurate with a larger sample size. The gender-based comparison was not performed, since the study involved disarticulated upper extremities.

show abstract

“…28,34 Other medial variants were described in the literature in association with median nerve compression. 35 Less commonly, the accessory brachialis can arise from the lateral aspect of the brachialis muscle and lateral intermuscular septum, cross over the radial nerve, and split into two tendons distally, one inserting into the deep fascia overlying the pronator teres and the other into the fascia over the supinator. 36 This variant could potentially result in compression of the radial nerve.…”

Section: Accessory Brachialismentioning

confidence: 99%

Elbow Imaging: Variants and Asymptomatic Findings

Antil

Stevens

Lutz

2021

Semin Musculoskelet Radiol

View full text Add to dashboard Cite

One of the key principles in the interpretation of radiology images is the ability to differentiate between normal and abnormal findings. This article provides a comprehensive overview of normal structures and anatomical variants occurring around the elbow including potential diagnostic pitfalls. We discuss frequently observed anatomical variants found in routine clinical practice associated with osseous, ligamentous, musculotendinous, and neurovascular structures at the elbow that may simulate pathology or predispose to symptoms under specific circumstances.

show abstract

An accessory brachialis muscle associated with abnormal arrangement of structures in the cubital fossa

Cited by 5 publications

References 4 publications

Study of Brachialis Muscle: Additional Slip and Its Clinical Significance

Study of Brachialis Muscle: Additional Slip and Its Clinical Significance

Incidence of Accessory Brachialis Muscle, Variations in its Insertion and Relation with Surrounding Neurovascular Structures

Elbow Imaging: Variants and Asymptomatic Findings

Contact Info

Product

Resources

About