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A Morphological Study of the Suprascapular Notch in a Sample of Scapulae at the University of Kwazulu Natal / Estudio Morfológico de la Escotadura Supraescapular en una Muestra de Escápulas de la Universidad de KwaZulu-Natal
Manikum, C; Rennie, C; Naidu, E. C. S; Azu, O. O.
  • Manikum, C; University of KwaZulu-Natal. College of Health sciences. Department of Clinical Anatomy. School of Laboratory Medicine and Medical Sciences. Durban. ZA
  • Rennie, C; University of KwaZulu-Natal. College of Health sciences. Department of Clinical Anatomy. School of Laboratory Medicine and Medical Sciences. Durban. ZA
  • Naidu, E. C. S; University of KwaZulu-Natal. College of Health sciences. Department of Clinical Anatomy. School of Laboratory Medicine and Medical Sciences. Durban. ZA
  • Azu, O. O; University of KwaZulu-Natal. College of Health sciences. Department of Clinical Anatomy. School of Laboratory Medicine and Medical Sciences. Durban. ZA
Int. j. morphol ; 33(4): 1365-1370, Dec. 2015. ilus
Article in English | LILACS | ID: lil-772323
ABSTRACT
The suprascapular notch (SSN) is important, as it is a risk factor in the development of suprascapular nerve entrapment syndrome. The purpose of this study is to describe the morphology of the SSN of a sample of normal scapulae in the Discipline of Clinical Anatomy, University of KwaZulu Natal. Sixty scapulae were used consisting of 37 males and 23 females (mean age 51 years). The superior transverse diameter and maximal depth of the notches were measured. Comparisons were made of the notch in relation to the maximal width and length of the scapulae, laterality and sex. The Rengachary classification method was adopted to describe the shape of the SSN. Analysis of morphological variations showed Type II- wide blunted V-shaped notch to be predominant (65%). Three scapulae had absent notches (Type I). The average notch depth and transverse diameter were 6.51±2.69 mm and 13.18±5.52 mm respectively. The right SSN were significantly deeper than the left (7.54±2.51 mm) (p<0.02). The male scapulae were distinctively larger, with females having a much shallower and wider notch. Understanding the morphological variation of the SSN is important when various radiological imaging techniques are utilized such as during arthroscopic shoulder operations and anaesthesia for landmarking of the suprascapular nerve.
RESUMEN
La incisura supraescapular (IS) es importante, ya que es un factor de riesgo en el desarrollo del síndrome de atrapamiento del nervio supraescapular. El propósito de este estudio fue describir la morfología de la IS de una muestra de escápulas normales en la disciplina de Anatomía Clínica de la Universidad de KwaZulu-Natal. Se utilizaron sesenta escápulas, 37 de hombres y 23 de mujeres (edad media 51 años). Se midieron el diámetro transversal superior y la profundidad máxima de las incisuras. Se realizaron comparaciones de la incisura en relación al ancho máximo y la longitud de la escápula, su lateralidad y el sexo. Se utilizó el método de clasificación de Rengachary para describir la forma de la IS. El análisis de las variaciones morfológicas mostró que el Tipo II, muesca amplia roma en forma de V, fue predominante (65%). Tres escápulas no presentaron incisuras (Tipo I). La Media de la profundidad y diámetro transversal fueron 6,51±2,69 mm y 13,18±5,52 mm, respectivamente. Las IS derechas fueron significativamente más profundas que las izquierdas (7,54±2,51 mm) (p<0,02). Las escápulas de los hombres fueron significativamente de mayor tamaño que las de mujeres, con una incisura más superficial y ancha. La comprensión de las variaciones morfológicas de la IS son relevantes ya que diversas técnicas de imágenes radiológicas son utilizadas durante cirugías artroscópicas y anestesia del hombro para estimar puntos anatómicos del nervio supraescapular.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Scapula / Nerve Compression Syndromes Type of study: Risk factors Limits: Adolescent / Adult / Aged / Aged80 / Child / Female / Humans / Male Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2015 Type: Article Affiliation country: South Africa Institution/Affiliation country: University of KwaZulu-Natal/ZA

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Full text: Available Index: LILACS (Americas) Main subject: Scapula / Nerve Compression Syndromes Type of study: Risk factors Limits: Adolescent / Adult / Aged / Aged80 / Child / Female / Humans / Male Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2015 Type: Article Affiliation country: South Africa Institution/Affiliation country: University of KwaZulu-Natal/ZA