The Rotator Cuff Footprint: A Cadaveric Study of the Morphometry and Morphology

The musculotendinous hood of the rotator cuff muscle complex is formed by four tendons which thicken and merge with the underlying glenohumeral capsule as they insert onto the respective regions of the humeral head. This insertional anatomy has been reported to exhibit several pathological patterns...

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Autores principales:	Naidoo,N, Lazarus,L, Satyapal,K. S
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2016
Materias:	Rotator cuff Footprint Insertion Morphology Morphometry
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300027
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spelling	oai:scielo:S0717-950220160003000272016-11-17The Rotator Cuff Footprint: A Cadaveric Study of the Morphometry and MorphologyNaidoo,NLazarus,LSatyapal,K. S Rotator cuff Footprint Insertion Morphology Morphometry The musculotendinous hood of the rotator cuff muscle complex is formed by four tendons which thicken and merge with the underlying glenohumeral capsule as they insert onto the respective regions of the humeral head. This insertional anatomy has been reported to exhibit several pathological patterns which serve as the basis for the operative repair of cuff tears. Since previous literature concentrated on macro-evaluations of tears specific to the supraspinatus tendon, the present study aimed to investigate the macro- morphological and morphometric parameters of all four rotator cuff tendons. Observation of the insertion site configurations and computation of the relative tendon morphometry were performed once the glenohumeral region in forty adult cadaveric specimens (n=80) were bilaterally dissected. Statistical analysis also reflected the demographic representation of the sample: (Age: 74.83±12.92 years old; Gender: 24 Males, 16 Females; Race: 38 White, 2 Black). The general mean supero-inferior and medio-lateral distances were recorded specific to the entire rotator cuff and each tendinous insertion site as follows: i) Subscapularis: 22.57±3.13 mm, 20.45±4.79 mm; ii) Supraspinatus: 15.20±4.29 mm, 20.14±5.38 mm; iii) Infraspinatus: 19.49±5.21 mm, 19.07±4.74 mm; iv) Teres minor: 19.02±5.21 mm, 15.33±3.75 mm; v) Entire rotator cuff: 76.28±10.57 mm, 75.18±11.41mm. Although variation in insertion configurations existed, predominant shapes were identified: Subscapularis Oval (72.5 %), Supraspinatus - Rectangular (76.3 %), Infraspinatus - Oval (78.8 %), Teres minor - Round (100 %). In view of the statistically significant P values, it may be postulated that knowledge of the supero-inferior and medio-lateral distances may provide dimensional data required to obtain optimal cuff coverage during reconstruction procedures. Furthermore, the variation in the insertion patterns may indicate the progression of rotator tendon tears.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.34 n.3 20162016-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300027en10.4067/S0717-95022016000300027
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Rotator cuff Footprint Insertion Morphology Morphometry
spellingShingle	Rotator cuff Footprint Insertion Morphology Morphometry Naidoo,N Lazarus,L Satyapal,K. S The Rotator Cuff Footprint: A Cadaveric Study of the Morphometry and Morphology
description	The musculotendinous hood of the rotator cuff muscle complex is formed by four tendons which thicken and merge with the underlying glenohumeral capsule as they insert onto the respective regions of the humeral head. This insertional anatomy has been reported to exhibit several pathological patterns which serve as the basis for the operative repair of cuff tears. Since previous literature concentrated on macro-evaluations of tears specific to the supraspinatus tendon, the present study aimed to investigate the macro- morphological and morphometric parameters of all four rotator cuff tendons. Observation of the insertion site configurations and computation of the relative tendon morphometry were performed once the glenohumeral region in forty adult cadaveric specimens (n=80) were bilaterally dissected. Statistical analysis also reflected the demographic representation of the sample: (Age: 74.83±12.92 years old; Gender: 24 Males, 16 Females; Race: 38 White, 2 Black). The general mean supero-inferior and medio-lateral distances were recorded specific to the entire rotator cuff and each tendinous insertion site as follows: i) Subscapularis: 22.57±3.13 mm, 20.45±4.79 mm; ii) Supraspinatus: 15.20±4.29 mm, 20.14±5.38 mm; iii) Infraspinatus: 19.49±5.21 mm, 19.07±4.74 mm; iv) Teres minor: 19.02±5.21 mm, 15.33±3.75 mm; v) Entire rotator cuff: 76.28±10.57 mm, 75.18±11.41mm. Although variation in insertion configurations existed, predominant shapes were identified: Subscapularis Oval (72.5 %), Supraspinatus - Rectangular (76.3 %), Infraspinatus - Oval (78.8 %), Teres minor - Round (100 %). In view of the statistically significant P values, it may be postulated that knowledge of the supero-inferior and medio-lateral distances may provide dimensional data required to obtain optimal cuff coverage during reconstruction procedures. Furthermore, the variation in the insertion patterns may indicate the progression of rotator tendon tears.
author	Naidoo,N Lazarus,L Satyapal,K. S
author_facet	Naidoo,N Lazarus,L Satyapal,K. S
author_sort	Naidoo,N
title	The Rotator Cuff Footprint: A Cadaveric Study of the Morphometry and Morphology
title_short	The Rotator Cuff Footprint: A Cadaveric Study of the Morphometry and Morphology
title_full	The Rotator Cuff Footprint: A Cadaveric Study of the Morphometry and Morphology
title_fullStr	The Rotator Cuff Footprint: A Cadaveric Study of the Morphometry and Morphology
title_full_unstemmed	The Rotator Cuff Footprint: A Cadaveric Study of the Morphometry and Morphology
title_sort	rotator cuff footprint: a cadaveric study of the morphometry and morphology
publisher	Sociedad Chilena de Anatomía
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300027
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The Rotator Cuff Footprint: A Cadaveric Study of the Morphometry and Morphology

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