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Radiologic assessment of the displacement of the greater tuberosity of the humerus
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Jaedoo Yoo, Jangwoon Shon
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J Korean Soc Fract 2001;14(2):223-227. Published online April 30, 2001
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DOI: https://doi.org/10.12671/jksf.2001.14.2.223
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 Abstract
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- PURPOSE
The purpose of this study is to evaluate the correlation between the amount of displacement of the greater tuberosity of the humerus and the that of the radiographic displacement.
MATERIALS AND METHODS
Dry bones of the scapula, humerus were fixed to the board. After cutting the greater tuberosity, the center of the lesser tuberosity, the anterior and inferior margin of the greater tuberosity fragment, the anterior edge of the bone defect at the greater tuberosity were marked with wire. The humerus were placed in the neutral position, 60 degree internal rotation, 15 degree external rotation, 45 degree abduction, 90 degree abduction. The radiographs were taken in the position of the 5, 10, 15, 20, 25mm posterior superior displacement of the fragment respectively.
RESULTS
The correlation coefficient between the amount of displacement of the greater tuberosity of the humerus and the that of the radiographic displacement were followings; 0.599(p=0.285) in the neutral anterior posterior view, 0.790(p=0.112) in the 60 degree internal rotation view, 0.522(p=0.367) in the 15 degree external rotation view, 0.290(p=0.635) in the 45 degree abduction axillary view, 90 degree abduction axillary view.
CONCLUSION
The 90 abduction axillary view was the most appropriate radiograph to evaluate the amount of displacement of the greater tuberosity of the humerus.
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