VARIATION IN THE INSERTION OF BICEPS BRACHII MUSCLE: A CASE REPORT

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Jolly Agarwal ◽  
N. K. Arora ◽  
Anurag Agarwal

<bold>Introduction:</bold> Biceps brachii is a large, fusiform muscle of upper limb having two heads of origin; the short head arising by a thick flattened tendon from the apex of the coracoid process Paper Submission Dateand the long head from supraglenoid tubercle of the scapula. The flattened tendon at the lower end rotates as it passes through the cubital fossa to its insertion into the posterior border of tuberosity of the radius. <bold>Case History:</bold> During routine cadaveric dissection of undergraduate teaching program in SRMS IMS, Bareilly,we found rare variation in the insertion of biceps. We observed unilateral Paper Publication Date variation in the insertion of biceps muscle. The biceps tendon at its insertion was divided into July 2016 three distinct parts. Main tendon of long head inserts on radial tuberosity. This tendon of long head sends musculotendinous slip to pronator teres muscle. The short head sends DOI musculotendinous slip to flexor carpi radialis and its tendon does not insert on radial tuberosity despite formation of common belly with long head. The origin of muscle is normal and from two heads – short head and long head. The muscle is supplied by musculocutaneous nerve. <bold>Conclusion:</bold> The triple tendon insertion may allow an element of independent function of each portion of the biceps, and during repair of an avulsion, the surgeon should ensure correct orientation of both tendon components.

2017 ◽  
Vol 2017 ◽  
pp. 1-5
Author(s):  
Saiyun Hou ◽  
John Harrell ◽  
Sheng Li

Objectives. To establish anatomical landmarks for biceps tendon groove localization based on intrinsic anatomical relations and to validate the localization with ultrasonographic measurement. Design. Perspective, observational, single-blinded pilot study. Participants. 25 healthy male and female volunteers ages 24–50 years. Methods. We used two anatomical landmarks, the medial epicondyle vertical line related landmark and the coracoid process landmark. The distance from the groove skin mark to the medial epicondyle vertical line and the coracoid process was measured horizontally and was measured at 0° and 45° of shoulder external rotation, respectively. Results. Medial epicondyle vertical lines were 9.3 mm/21.5 mm medial to the groove at 0°/45° of shoulder external rotation, respectively. Correlation coefficients were 0.04/0.10, 0.32/0.42, and 0.26/0.37 for weight, height, and BMI in 0°/45° of shoulder external rotation, respectively. The distance between the coracoid process and the groove was 44.0 mm/62.2 mm in 0°/45° of shoulder external rotation, respectively. Correlation coefficients were 0.36/0.41, 0.36/0.54, and 0.18/0.12 for weight, height, and BMI in 0°/45° of shoulder external rotation, respectively. Conclusions. The medial epicondyle vertical line and the coracoid process landmark are both useful anatomical landmarks to localize the biceps groove. The anatomical landmark based localization is essentially not correlated with subject’s weight, height, or BMI.


2020 ◽  
Vol 102-B (9) ◽  
pp. 1194-1199
Author(s):  
Hyo-Jin Lee ◽  
Eung-Sic Kim ◽  
Yang-Soo Kim

Aims The purpose of this study was to identify the changes in untreated long head of the biceps brachii tendon (LHBT) after a rotator cuff tear and to evaluate the factors related to the changes. Methods A cohort of 162 patients who underwent isolated supraspinatus with the preservation of LHBT was enrolled and evaluated. The cross-sectional area (CSA) of the LHBT on MRI was measured in the bicipital groove, and preoperative to postoperative difference was calculated at least 12 months postoperatively. Second, postoperative changes in the LHBT including intratendinous signal change, rupture, dislocation, or superior labral lesions were evaluated with seeking of factors that were correlated with the changes or newly developed lesions after rotator cuff repair. Results The postoperative CSA (12.5 mm2 (SD 8.3) was significantly larger than preoperative CSA (11.5 mm2 (SD 7.5); p = 0.005). In total, 32 patients (19.8%) showed morphological changes in the untreated LHBT 24 months after rotator cuff repair. Univariate regression analysis revealed that the factor chiefly related to the change in LHBT status was an eccentric LHBT position within the groove found on preoperative MRI (p = 0.011). Multivariate analysis using logistic regression also revealed that an eccentric LHBT position was a factor related to postoperative change in untreated LHBTs (p = 0.011). Conclusion The CSA of the LHBT inside the biceps groove increased after rotator cuff repair. The preoperative presence of an eccentrically positioned LHBT was associated with further changes of the tendon itself after rotator cuff repair. Cite this article: Bone Joint J 2020;102-B(9):1194–1199.


2017 ◽  
Vol 203 (6) ◽  
pp. 365-373 ◽  
Author(s):  
Crótida de la Cuadra-Blanco ◽  
Luis A. Arráez-Aybar ◽  
Jorge A. Murillo-González ◽  
Manuel E. Herrera-Lara ◽  
Juan A. Mérida-Velasco ◽  
...  

The goal of this study is to clarify the development of the long head of the biceps brachii tendon (LHBT) and to verify the existence and development of the coracoglenoid ligament. Histological preparations of 22 human embryos (7-8 weeks of development) and 43 human fetuses (9-12 weeks of development) were studied bilaterally using a conventional optical microscope. The articular interzone gives rise to the LHBT, glenoid labrum, and articular capsule. During the fetal period, it was observed that in 50 cases (58%), the LHBT originated from both the glenoid labrum and the scapula, while in 36 cases (42%), it originated only from the glenoid labrum. The coracoglenoid ligament, first described by Sappey in 1867, is a constant structure that originates at the base of the coracoid process and projects toward the glenoid labrum zone, which is related to the origin of the LHBT. The coracoglenoid ligament was more easily identifiable in the 36 cases in which the LHBT originated only from the glenoid labrum. We suggest that the coracoglenoid ligament is a constant anatomical structure, is not derived from the articular interzone unlike the LHBT, and contributes to the fixation of the glenoid labrum in the scapula in cases in which the LHBT originated only from the glenoid labrum. We postulate that, when the LHBT is fixed only at the glenoid labrum, alterations in the coracoglenoid ligament could lead to a less sufficient attachment of the glenoid labrum to the scapula which could predispose to a superior labral lesion.


2016 ◽  
Vol 32 (6) ◽  
pp. 558-570 ◽  
Author(s):  
Guillaume Gaudet ◽  
Maxime Raison ◽  
Fabien Dal Maso ◽  
Sofiane Achiche ◽  
Mickael Begon

The aim of this study is to determine the intra- and intersession reliability of nonnormalized surface electromyography (sEMG) on the muscles actuating the forearm during maximum voluntary isometric contractions (MVIC). A subobjective of this study is to determine the intra- and intersession reliability of forearm MVIC force or torque, which is a prerequisite to assess sEMG reliability. Eighteen healthy adults participated at 4 different times: baseline, 1-h post, 6-h post, and 24-h post. They performed 3 MVIC trials of forearm flexion, extension, pronation, and supination. sEMG of the biceps brachii short head, brachialis, brachioradialis, triceps brachii long head, pronator teres, and pronator quadratus were measured. The intraclass correlation coefficient (ICC) on MVIC ranged from 0.36 to 0.99. Reliability was excellent for flexion, extension, and supination MVIC for both intra- and intersession. The ICC on sEMG ranged from 0.58 to 0.99. sEMG reliability was excellent for brachialis, brachioradialis, and pronator quadratus, and good to excellent for triceps brachii, biceps brachii, and pronator teres. This study shows that performing 3 MVICs is sufficient to obtain highly reliable maximal sEMG over 24 h for the main muscles actuating the forearm. These results confirm the potential of sEMG for muscle motor functional monitoring.


Author(s):  
John W Belk ◽  
Stephen G Thon ◽  
John Hart ◽  
Eric C McCarty, Jr. ◽  
Eric C McCarty

ImportanceArthroscopic suprapectoral biceps tenodesis (ABT) and open subpectoral biceps tenodesis (OBT) are two surgical treatment options for relief of long head of the biceps tendon (LHBT) pathology and superior labrum anterior to posterior (SLAP) tears. There is insufficient knowledge regarding the clinical superiority of one technique over the other.ObjectiveTo systematically review the literature in order to compare the clinical outcomes and safety of ABT and OBT for treatment of LHBT or SLAP pathology.Evidence reviewA systematic review was performed by searching PubMed, the Cochrane Library and Embase to identify studies that compared the clinical efficacy of ABT versus OBT. The search phrase used was: (bicep OR biceps OR biceps brachii OR long head of biceps brachii OR biceps tendinopathy) AND (tenodesis). Patients were assessed based on the American Shoulder and Elbow Surgeons Score, the visual analogue scale, the Single Assessment Numeric Evaluation, Constant-Murley Score, clinical failure, range of motion, bicipital groove pain and strength. Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed, and both the Cochrane Collaboration’s and Risk of Bias in Non-randomised Studies - of Interventions (ROBINS-I) risk of bias tools were used to evaluate risk of bias.FindingsEight studies (one level I, seven level III) met inclusion criteria, including 326 patients undergoing ABT and 381 patients undergoing OBT. No differences were found in treatment failure rates or patient-reported outcome scores between groups in any study. One study found OBT patients to experience significantly increased range of shoulder forward flexion when compared with ABT patients (p=0.049). Two studies found ABT patients to experience significantly more postoperative stiffness when compared with OBT patients (p<0.05).ConclusionsPatients undergoing ABT and OBT can be expected to experience similar improvements in clinical outcomes at latest follow-up without differences treatment failure or functional performance. ABT patients may experience an increased incidence of stiffness in the early postoperative period.Level of evidenceIII.


Author(s):  
Jolly Agarwal ◽  
Krishna Gopal

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.


2018 ◽  
Vol 11 (1) ◽  
pp. 56-57
Author(s):  
S Kumar ◽  
R Baidya ◽  
P Baral

Introduction: Biceps brachii is a muscle of arm which brings about supination when fore-arm is flexed and flexion of elbow joint. Proximally it is attached with two heads: long and short heads.Case report: The absence of long head of biceps brachii muscle is very rare anomaly. It may be unilateral or bilateral with or without other congenital anomalies. The exact prevalence of this anomaly is unknown. This anomaly has been reported to occur as the result of an insult to the fetus during the sixth or seventh week of gestation, at which time the long head of the biceps tendon is developing. J-GMC-N | Volume 11 | Issue 01 | January-June 2018, Page:56-57


2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Francisco Rego Costa ◽  
Cátia Esteves ◽  
Lina Melão

The biceps brachii muscle is prone to variants but absence of the long head of the biceps (LHB) tendon is an exceptionally rare anomaly. This report concerns the fourth case of bilateral congenital absence of the LHB tendon and presents the ultrasonography (US) and magnetic resonance (MR) findings. Our case has the peculiarity of being the first in which bilateral LHB tendon agenesis is not associated with rotator cuff or labral tears.


2010 ◽  
Vol 35 (5) ◽  
pp. 713-716 ◽  
Author(s):  
Stefano Gumina ◽  
Stefano Carbone ◽  
Dario Perugia ◽  
Lamberto Perugia ◽  
Franco Postacchini

Author(s):  
B Muraleedhar ◽  
M. S. Danigond ◽  
Hanamanth Bagi

Biceps brachii is a flexor of elbow joint and also a powerful supinator of the forearm present in the anterior compartment of arm and usually it originates from two head as its name indicating one is long head of biceps originating from supraglenoid tubercle of scapula and another one is short head which is originating from coracoids process of scapula. During routine dissection for Ayurvedic undergraduates, In the department of Shareera Rachana (Anatomy) in SDM Trust’s Ayurvedic Medical College, Terdal, Tq. Jamakhandi, Dist. Bagalkot, we found that third head of biceps brachii was originating from medial side of shaft of humerus which is just below the insertion of coracobrachialis along with the intramuscular septa and inserting into the radial tuberosity along with long and short head of biceps. Such variations are important for clinicians and surgeons for diagnostic and surgical procedures of the upper limb.


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