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| DOI | 10.4067/S0717-95022016000300027 | ||||||
| Año | 2016 | ||||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
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 superoinferior 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.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Naidoo, N. | - |
Univ KwaZulu Natal - República de Sudáfrica
University of KwaZulu-Natal - República de Sudáfrica |
| 2 | Ramsaroop, L. | - |
Univ KwaZulu Natal - República de Sudáfrica
University of KwaZulu-Natal - República de Sudáfrica |
| 3 | Satyapal, K. S. | Hombre |
Univ KwaZulu Natal - República de Sudáfrica
University of KwaZulu-Natal - República de Sudáfrica |