Should acute anterior dislocations of the shoulder be immobilized in external rotation? A cadaveric study

被引:67
作者
Miller, BS [1 ]
Sonnabend, DH [1 ]
Hatrick, C [1 ]
O'Leary, S [1 ]
Goldberg, J [1 ]
Harper, W [1 ]
Walsh, WR [1 ]
机构
[1] Univ New S Wales, Prince Wales Hosp, Orthopaed Res Labs, Div Surg, Sydney, NSW 2031, Australia
关键词
D O I
10.1016/j.jse.2004.03.006
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
The high recurrence rate associated with anterior shoulder dislocations may reflect inadequate healing of a Bankart lesion when the arm is immobilized in internal rotation. The effect of external rotation (ER) of the humerus on the glenoid-labrum contact of Bankart lesions was examined in 10 human cadaveric shoulders. The contact force between the glenoid labrum and the glenoid was measured in 60 of internal rotation, neutral rotation, and 45 of ER in 10 human cadaveric shoulders. No detectable contact force was found with the arm in internal rotation. The contact force increased as the arm passed through neutral rotation and reached a maximum at 45 of ER. The contact force returned to 0 g when the arm was returned to neutral rotation. The mean contact force at 45 of ER was 83.5 g. External rotation significantly increases the labrum-glenoid contact force and may influence the healing of a Bankart lesion.
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页码:589 / 592
页数:4
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