Cystic Lesions in the Greater Tuberosity of the Humerus: The Relation to Rotator Cuff Tears and Age.
10.3348/jkrs.2008.59.6.429
- Author:
Gang Deuk KIM
1
;
Jung Taek OH
Author Information
1. Department of Diagnostic Radiology, Wonkwang University Hospital, Korea. gdkim@wonkwang.ac.kr
- Publication Type:Original Article
- Keywords:
Shoulder joint;
Magnetic resonance (MR);
Arthrography;
Cysts;
Rotator cuff;
Age factor
- MeSH:
Age Factors;
Arthrography;
Arthroscopy;
Humans;
Humeral Head;
Humerus;
Incidence;
Rotator Cuff;
Shoulder;
Shoulder Joint
- From:Journal of the Korean Radiological Society
2008;59(6):429-434
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: This study was designed to investigate the location of cystic lesions in the greater tuberosity of the humerus and the relationship to rotator cuff tears and age. MATERIALS AND METHODS: A total of 78 patients (age range, 19-82 years; mean age, 51 years) who underwent arthroscopy or open surgery after MR arthrography (MRA) for a painful shoulder were enrolled in the study. The location of the cystic lesions were classified as 'A' for a supraspinatus insertion site, as 'C' for an infraspinatus insertion site, as 'B' for both a supraspinatus and infraspinatus insertion site, as 'BG' for a site posterior to the bicipital groove and as 'P' for a site at the bare area of the humeral head. The location of cystic lesions and supraspinatus and infraspinatus tears were evaluated on MRA. Statistical analyses used the chi-squared test and logistic regression. RESULTS: 'BG' and 'A' cystic lesions were related to the presence of a supraspinatus tear, 'C' cystic lesions were related to the presence of an infraspinatus tear and 'B' cystic lesions were related to the presence of both supraspinatus and infraspinatus tears (p < 0.05). 'P' cystic lesions were not related to the presence of rotator cuff tears. The incidence of cystic lesions increased with age, but with no statistical correlation. CONCLUSION: Cystic lesions at the supraspinatus and infraspinatus insertion sites are useful to predict the presence of a rotator cuff tear, but cystic lesions were not age related.
