| Acromion Morphology in Coronal and Sagittal Plane; Correlation with Rotator Cuff Syndrome |
| Chris H Jo, Jung Taek Kim, Kang Sup Yoon, Ji Ho Lee, Seung Baek Kang, Jae Hyup Lee, Hyuk Soo Han, Seung Whan Rhee |
| Department of Orthopedic Surgery, Seoul National University Boramae Hospital, Seoul, Korea. chrisjo@snu.ac.kr |
| 관상면과 시상면에서의 견봉 형태와 회전근개 파열의 연관성 |
| 조현철·김정택·윤강섭·이지호·강승백·이재협·한혁수·이승환 |
| 서울대학교 보라매병원 정형외과학교실 |
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| Abstract |
PURPOSE
We evaluated the correlation of the anatomic parameters of the acromion those represent on the magnetic resonance image (MRI) of impingement syndrome.
MATERIALS AND METHODS: From June, 2004 to December, 2005, 71 cases were surgically proven to be impingement syndrome, and the anterior acromial hooking angle, the lateral acromial hooking angle (AAHA and LAHA) and the acromial hooking index (AHI: the sum of the AAHA and LAHA) were compared to 16 control cases. At the same period, 55 cases were surgically proven to be partial or full thickness rotator cuff tear, and age, gender and twelve anatomic parameters, including the acromial type, the acromial angle, the anterior covering, the acromial slope, the AAHA, the lateral acromial angle, the acromial torsional angle, the lateral acromial angulation, the LAHA, the lateral covering, the acromiohumeral distance and the AHI were assessed.
RESULTS
The AAHA and AHI were increased as impingement syndrome proceeded. The acromial type and acromial angle, and the AAHA, LAHA and AHI showed significant differences between the controls and the rotator cuff tear patients on univariant analysis. On multivariant analysis, gender was most strongly correlated with rotator cuff tear. Age, AAHA and the acromial angle showed similar correlation, respectively.
CONCLUSION
The coronal acromial shape is correlated with rotator cuff tear, and it is important to correct the lateral acromial shape when performing acromioplasty. |
| Key Words:
Acromion; Impingement syndrome; Rotator cuff tear; Coronal plane; Lateral down slope |
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