上腕近位端骨折の術後成績と内反変形の検討

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The purpose of this study was to investigate the effect of humerus varus deformity in proximal humeral fractures. 15 patients who underwent open reduction and plate fixation between February 2004 and November 2006 were used. There were 2 males and 13 females. All patients involved surgical neck, 2-part proximal humeral fractures. Those patients were divided into two groups. Group A had 8 patients with humerus varus deformity less than 25°, and Group B had 7 patients with humerus varus deformity more than 25°. The mean age was 71.8 and 76.4 years old respectively, and the average follow-up periods were 19.5 and 20.4 months respectively. There were no significant differences in the age and follow-up periods among the 2 groups. In group A the mean active flexion was 119°, abduction 110°, ER 46°, IR T10 and the average JOA score was 87.7 points. In group B the mean active flexion was 121°, abduction 108°, ER 40°, IR T10 and the average JOA score was 88.6 points. All patients obtained bone union except for 1 patient who had pseudarthrosis. There was no humeral head avascular necrosis. The average humeral head inclination angle was 130°(the mean humerus varus deformity 10.9°) in group A and 109°(36.4°) in group B (p = 0.0006). The average interval between acromion and greater tuberosity were 12.5 mm/9.5 mm in group A and B. There was no significant differences in the range of motion and JOA score among the 2 groups. Humerus varus deformity more than 25° did not show any significant differences in the outcome of the operative treatment.
日本肩関節学会の論文
2008-06-30

上腕近位端骨折の術後成績と内反変形の検討

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