Radiologic Assessment of Normal Acromial Arch

Journal of the Korean Shoulder and Elbow Society 1999;2(2):106-109.
Published online December 30, 1999.

Sung Ho Hahn, Bo Kyu Yang, Seung Rim Yi, Sun Uk Jung, Sung Hwan Yoo

Department of Orthopaedic Surgery, National Police Hospital

정상인의 견봉궁 형태에 대한 방사선 계측

한성호, 양보규, 이승림, 정선욱, 유성환

국립경찰병원 정형외과

Abstract

elation to age and symmetry in asymptomatic adults. Materials and methods : Seventy five asymptomatic adults were divided into two groups by age(A group of age twenties and B group of age over forty) and both acromial outlet views were obtained. One hundred fifty radiographs were typed and assessed radiologically by methods of Getz and Liotard.
Results
: The relative percentages of acromial typesⅠ, Ⅱ, and Ⅲ were 3%, 90% and 7% in the A group and 6%, 82% and 12% in the B group respectively. Subacromial peak and spinoacromial angle were 4.3㎜, 82 degrees in the A group and 4.6㎜, 78 degrees in the B group.
Conclusion
: Incidence of type is not related to age in normal adult and typeⅡ is the most common type. Spinoacromial angle is decreased in older age group and type Ⅲ.

Key Words: Acromion, Radiologic assessment,