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Document type:
Journal Article
Author(s):
Schaeffeler, C; Mueller, D; Kirchhoff, C; Wolf, P; Rummeny, EJ; Woertler, K
Title:
Tears at the rotator cuff footprint: prevalence and imaging characteristics in 305 MR arthrograms of the shoulder.
Abstract:
To evaluate the prevalence, imaging characteristics and anatomical distribution of tears at the rotator cuff (RC) footprint with MR arthrography (MR-A) of the shoulder.MR arthrograms obtained in 305 patients were retrospectively reviewed. Partial articular-sided supraspinatus tendon avulsions (PASTA), concealed interstitial delaminations (CID), reverse PASTA lesions and full-thickness tears (FT) at the humeral tendon insertion were depicted. Anatomical locations were determined and depths of tears were classified.112/305 patients showed RC tears, including 63 patients with 68 footprint tears. 34 PASTA lesions were detected with 20/34 involving the anterior supraspinatus (SSP) tendon and 17/34 PASTA lesions were grade I lesions. Most CID lesions (14/23) occurred at the posterior SSP and 20/23 were classified as grade I or II. 9 FT and 2 reverse PASTA lesions were found. Statistical analysis revealed no difference in anatomical location (p = 0.903) and no correlation with overhead sports activity (p = 0.300) or history of trauma (p = 0.928). There were significantly more PASTA lesions in patients < 40 years of age (p = 0.029).Most RC tears detected with MR-A involve the SSP footprint and are articular-sided with predominance in younger patients, but concealed lesions are not as uncommon as previously thought.
Journal title abbreviation:
Eur Radiol
Year:
2011
Journal volume:
21
Journal issue:
7
Pages contribution:
1477-84
Language:
eng
Fulltext / DOI:
doi:10.1007/s00330-011-2066-x
Pubmed ID:
http://view.ncbi.nlm.nih.gov/pubmed/21267574
Print-ISSN:
0938-7994
TUM Institution:
Institut für Medizinische Statistik und Epidemiologie; Klinik und Poliklinik für Unfallchirurgie
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