Variation in origin of the long head of the biceps brachii tendon in a cadaver: A case report

Medicine
Shuji KatsukiKou Sakabe

Abstract

In general, the long head of the biceps brachii (LHB) tendon arises from the supraglenoid tubercle in the shoulder joint, and it has an important stabilizing mechanism for the humeral head in the shoulder joint. This case demonstrates that even if the LHB tendon can be palpated outside of the shoulder joint, it may disappear in the intertubercular sulcus (IS) and in the glenohumeral (GH) joint because of abnormal articulation. This case involved the cadaver of an 82-year-old Japanese man (number 1936, cause of death: hepatocellular tumor), who was selected from the bodies used for gross anatomy practice at the Tokai University School of Medicine in 2017. We removed the fat and skin around the shoulder joint for observational purposes and carefully examined the gross anatomy of the structures. We suspected that the long head of the biceps brachii tendon arose from the lesser tubercle (LT) in the cadaver. In our case, it was found that the upper part of the subscapularis (SSC) tendon was torn first, and the succeeding degenerative changes and rupture of the LHB tendon were intra-articular. The long head of the biceps brachii tendon was found to be ruptured in the GH joint, and scar tissue developed between the distal stump of the...Continue Reading

References

Sep 1, 1985·The American Journal of Sports Medicine·J R AndrewsW D McLeod
Jun 23, 2005·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Marwan F Abu-Hijleh
Oct 19, 2011·Journal of Shoulder and Elbow Surgery·Michael KhazzamJohn E Kuhn
May 1, 1994·Journal of Shoulder and Elbow Surgery·E ItoiK N An
Jan 10, 2014·Folia morphologica·Ashraf Y Nasr, Adel M Hussein
May 28, 2015·Anatomical Science International·Sung-Suk JeSang-Pil Yoon

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