Comparative anatomy of the rotator cuff

The Journal of Bone and Joint Surgery. British Volume
D H Sonnabend, A A Young

Abstract

While the evolution of the bony skeleton of the shoulder girdle is well described, there is little information regarding the soft tissues, in particular of the rotator cuff. We dissected the shoulders of 23 different species and compared the anatomical features of the tendons of the rotator cuff. The alignment and orientation of the collagen fibres of some of the tendons were also examined histologically. The behaviour of the relevant species was studied, with particular reference to the extent and frequency of forward-reaching and overhead activity of the forelimb. In quadrupedal species, the tendons of supraspinatus, infraspinatus and teres minor were seen to insert into the greater tuberosity of the humerus separately. They therefore did not form a true rotator cuff with blending of the tendons. This was only found in advanced primates and in one unusual species, the tree kangaroo. These findings support the suggestion that the appearance of the rotator cuff in the evolutionary process parallels anatomical adaptation to regular overhead activity and the increased use of the arm away from the sagittal plane.

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Citations

Feb 15, 2011·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Mazda FarshadDominik C Meyer
Dec 3, 2013·Journal of Shoulder and Elbow Surgery·George E AwwadClaire F Jones
Jan 29, 2013·Journal of Shoulder and Elbow Surgery·Johannes F PlateChristopher J Tuohy
Dec 15, 2010·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Augustus D MazzoccaRobert Arciero
May 13, 2015·Journal of Shoulder and Elbow Surgery·Anthony C SantagoKatherine R Saul
Aug 25, 2016·Journal of Shoulder and Elbow Surgery·Gabrielle Deprés-TremblayMichael D Buschmann
Oct 11, 2016·Annals of the New York Academy of Sciences·Amir LebaschiScott A Rodeo
Aug 9, 2011·Sports Medicine and Arthroscopy Review·Umile Giuseppe LongoVincenzo Denaro
Oct 20, 2018·Journal of Investigative Surgery : the Official Journal of the Academy of Surgical Research·Zafar AhmadNeil Rushton
Apr 2, 2010·The Journal of Bone and Joint Surgery. British Volume·D H SonnabendA A Young
May 8, 2020·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Derek F P van DeurzenMichel P J van den Bekerom
Aug 9, 2011·Sports Medicine and Arthroscopy Review·Vasili KarasBrian J Cole
Nov 21, 2015·Journal of Applied Physiology·Ana P ValenciaRichard M Lovering
Oct 20, 2020·The Journal of Experimental Biology·Kathleen F E MacLean, Clark R Dickerson
Feb 26, 2021·Journal of Anatomy·Julia van BeeselStephanie M Melillo
Sep 28, 2013·The Journal of Experimental Biology·Margie A MathewsonSamuel R Ward
Jul 25, 2021·International Journal of Environmental Research and Public Health·Umile Giuseppe LongoVincenzo Denaro

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