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CMAJ
CMAJ - July 25, 2000JAMC - le 25 juillet 2000

The shoulder bone's connected to the ...

CMAJ 2000;163(2):159

See response from: S. Ensworth
We read with interest the first instalment of the CMAJ series on the musculoskeletal system [Review].1 As musculoskeletal imagers, we agree wholeheartedly with Stephanie Ensworth's opinion of the importance of the musculoskeletal examination in diagnosing disorders that affect such a large segment of the population. Radiologists know the importance of understanding normal anatomy. Consequently we were dismayed to see Fig. 1, which has 4 major errors.

The subacromial–subdeltoid bursa is labelled as the subacromial bursa and is depicted much larger than it is in reality. The insertion of the supraspinatus tendon, labelled generically as rotator cuff tendon, is incorrectly shown on the upper humeral shaft rather than on the greater tuberosity of the humerus. The insertion of the inferior joint capsule is too low on the humerus. Finally, the arm is in abduction and this figure demonstrates subacromial impingement.

Barry B. Hobbs
Lisa M.F. Thain
Division of Musculoskeletal Radiology
London Health Sciences Centre, University Campus
London, Ont.

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Reference
  1. Ensworth S. Rheumatology: 1. Is it arthritis? CMAJ 2000;162(7):1011-6.

© 2000 Canadian Medical Association or its licensors