Supraglenoid tubercle

The supraglenoid tubercle is a region of the scapula from which the long head of the biceps brachii muscle originates.[1][2] It is a small, rough projection superior to the glenoid cavity near the base of the coracoid process. The term supraglenoid is from the Latin supra, meaning above, and glenoid, meaning socket or cavity.[3]

Supraglenoid tubercle
Left scapula. Lateral view. Supraglenoid tubercle labeled in red.
Bones of left shoulder. Supraglenoid tubercle shown in red.
Details
Identifiers
LatinTuberculum supraglenoidale
TA98A02.4.01.020
TA21163
FMA23263
Anatomical terms of bone

Clinical relevance

Biceps tendonitis

Biceps tendonitis originates on the long head of the biceps brachii at the supraglenoid tubercle in 30% of cases. The main symptom is generally anterior biceps instability, but the disease can also be characterized by chronic anterior shoulder pain which radiates towards the lateral part of the elbow.[4] In cases of biceps tendinitis, steroids can be injected fluoroscopically at the supraglenoid tubercle to reduce pain associated with the pathology.[5]

Avulsion

The supraglenoid tubercle ossifies separately from the rest of the scapula, so may not be as strong as the rest of the bone. It can be pulled off (avulsed),[6] often after an excessively strong contraction of the biceps brachii.[7] This may also cause a fracture of the surrounding parts of the scapula, particularly the glenoid cavity.[8] This may also occur in horses.[9] This type of bone fracture is quite rare.[10]

Additional images
  • Position of supraglenoid tubercle (shown in red). left scapula.
  • Still image. Left scapula, lateral view.
  • Position of supraglenoid tubercle (shown in red). Animation.
  • Still image.

See also

References

This article incorporates text in the public domain from page 205 of the 20th edition of Gray's Anatomy (1918)

  1. Zwingenberger, Allison; Benigni, Livia; Lamb, Christopher R. (2015-01-01), Mattoon, John S.; Nyland, Thomas G. (eds.), "Chapter 14 - Musculoskeletal System", Small Animal Diagnostic Ultrasound (Third Edition), St. Louis: W.B. Saunders, pp. 517–540, doi:10.1016/b978-1-4160-4867-1.00014-3, ISBN 978-1-4160-4867-1, retrieved 2020-10-25
  2. DeCamp, Charles E.; Johnston, Spencer A.; Déjardin, Loïc M.; Schaefer, Susan L. (2016-01-01), DeCamp, Charles E.; Johnston, Spencer A.; Déjardin, Loïc M.; Schaefer, Susan L. (eds.), "10 - The shoulder joint", Brinker, Piermattei and Flo's Handbook of Small Animal Orthopedics and Fracture Repair (Fifth Edition), W.B. Saunders, pp. 260–297, doi:10.1016/b978-1-4377-2364-9.00019-7, ISBN 978-1-4377-2364-9, retrieved 2020-10-25
  3. brainSPIN. "Structure Detail". anatomyEXPERT. Retrieved 2012-03-04.
  4. "Biceps Tendonitis". Eorif.com. Retrieved 2012-03-04.
  5. Mitra, Raj; Nguyen, Andrew; Stevens, Kathryn J. (2011). "Fluoroscopically Guided Supraglenoid Tubercle Steroid Injections for the Management of Biceps Tendonitis". Pain Practice. 11 (4): 392–6. doi:10.1111/j.1533-2500.2010.00424.x. PMID 21114615. S2CID 28274754.
  6. Roush, James K. (2006-01-01), Birchard, Stephen J.; Sherding, Robert G. (eds.), "Chapter 102 - Fractures of the Shoulder", Saunders Manual of Small Animal Practice (Third Edition), Saint Louis: W.B. Saunders, pp. 1071–1076, doi:10.1016/b0-72-160422-6/50104-2, ISBN 978-0-7216-0422-0, retrieved 2020-10-25
  7. DeCamp, Charles E.; Johnston, Spencer A.; Déjardin, Loïc M.; Schaefer, Susan L. (2016-01-01), DeCamp, Charles E.; Johnston, Spencer A.; Déjardin, Loïc M.; Schaefer, Susan L. (eds.), "9 - Fractures of the scapula", Brinker, Piermattei and Flo's Handbook of Small Animal Orthopedics and Fracture Repair (Fifth Edition), W.B. Saunders, pp. 251–259, doi:10.1016/b978-1-4377-2364-9.00018-5, ISBN 978-1-4377-2364-9, retrieved 2020-10-25
  8. McIlwraith, C. Wayne; Nixon, Alan J.; Wright, Ian M. (2015-01-01), McIlwraith, C. Wayne; Nixon, Alan J.; Wright, Ian M. (eds.), "Chapter 13 - Bursoscopy", Diagnostic and Surgical Arthroscopy in the Horse (Fourth Edition), Mosby, pp. 387–406, doi:10.1016/b978-0-7234-3693-5.00013-8, ISBN 978-0-7234-3693-5, retrieved 2020-10-25
  9. Nelson, Brad B.; Goodrich, Laurie R. (2014-01-01), Hinchcliff, Kenneth W.; Kaneps, Andris J.; Geor, Raymond J. (eds.), "18 - Elbow and Shoulder", Equine Sports Medicine and Surgery (Second Edition), W.B. Saunders, pp. 343–365, doi:10.1016/b978-0-7020-4771-8.00018-1, ISBN 978-0-7020-4771-8, retrieved 2020-10-25
  10. Fortier, Lisa A. (2019-01-01), Auer, Jörg A.; Stick, John A.; Kümmerle, Jan M.; Prange, Timo (eds.), "Chapter 98 - Shoulder", Equine Surgery (Fifth Edition), W.B. Saunders, pp. 1699–1709, doi:10.1016/b978-0-323-48420-6.00098-3, ISBN 978-0-323-48420-6, retrieved 2020-10-25
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