Analysis on the acromial curvature and its relationships with the subacromial space and types of acromion

Abstract

ObjectiveTo correlate the acromial curvature, using the angles proposed, with the subacromial space and types of acromion.MethodsNinety scapulas were studied. The acromia were classified as types I, II or III. The acromial curvature was analyzed by means of the alpha, beta and theta angles. We also measured the distance between the anteroinferior extremity of the acromion and the supraglenoid tubercle (DA). The scapulas were grouped in relation to sex and age. The angles proposed were analyzed in relation to each type of acromion and also in relation to the measurements of the distance DA.ResultsOut of the total number of acromia, 39 (43.3%) were type I, 43 (47.7%) type II and eight (9%) type III. The mean ages for each type of acromion (I–III) were 45.6, 55.2 and 51.1 years, respectively. The proportions of the different types of acromion varied in relation to sex and age. The evaluations on the mean beta angle (p = 0.008) and theta angle (p = 0.028), with comparisons in relation to each type of acromion and measurements of the distance DA (p = 0.037), were shown to be statistically significant.ConclusionThe angles proposed in our study can be used for morphometric analysis on the acromion, especially regarding its curvature, and can contribute towards studies on diseases of the shoulder and aid in surgical planning and analysis of the acromial slope, by means of radiography or magnetic resonance.

Acromial morphology and morphometry associated with subacromial impingement syndrome

“…Accordingly, acromioplasty would be beneficial for SAIS patients who had hooked acromion. SAD has a relationship with SAIS since impingement usually occurs vertically [35]. AT is also an important parameter affecting the vertical dimension of subacromial space.…”

Türk Popülasyonunda Akromion Morfolojisinin Subakromial İmpingement ve Rotator Manşet Yırtıkları ile İlişkisi

“…Korakoakromial arktaki patolojiler bu anatomik bölgenin varyasyonları ve morfolojisi ile ilişkilidir (8). Bigliani ve ark.…”

“…Literatürdeki çoğu çalışma kadavralar ve gönüllüler üzerinde yapılmış olup genellikle X-Ray çalışmalarıdır. Kadavra ve gönüllü ile yapılan çalışmalarda vaka sayıları az olmakta ve bu hasta grupları ile supraspinatus patolojileri değerlendirilememektedir (1,3,5,8). X-Ray ile akromion morfolojisini değerlendirmenin sensivitesinin düşük olduğu (12), MRI ile akromion tiplendirmesi, akromiyal morfolojinin belirlenmesinde X-Ray gibi geçerli bir yöntem olduğu (13) farklı yazarlar tarafından dile getirilmiş olup MRI için farklı bir sınıflandırmaya ihtiyaç duyulmamıştır.…”

Acromial Morphology and Subacromial Impingement Syndrome: A Clinico-Anatomical Study

“…In 1996, Getz et al evaluated acromial shape by objective method and reported 22.8% type I; 68.5% type II and 8.6% type III acromion processes. 6 Many other authors Yazici et al, 7 Shah et al, 8 Nigar et al, 9 Natsis et al, 10 Paraskevas et al, 11 Collipal et al, 12 Jose et al 13 and Naidoo et al 14 also evaluated acromion processes among different other population group through dry scapulae.…”