Prognosis in fractures of the distal end of the humerus in children.

概要

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84 cases of fractures of the distal end of the humerus in children were followed-up from 1 to 16 years with an average of 3 years and 9 months. We studied the Baumann angle, the carrying angle and the tilting angle. In the normal arm, there was no significant difference between age and sex in the carrying angle and tilting angle. There was no significant difference in the carrying angle of the fracture of the distal end of the humerus in the follow-up period. The Baumann angle was measured after the reduction of the fracture and was found to correlate well with the final carrying angle measured at follow-up. We suggested that if the Baumann angle after reduction of a supracondylar fractures is 17°, the final carrying angle will be the same angle as in the normal arm, and if the Baumann angle after reduction of a intracondylar fracture is 22°, the final carrying angle will be the same angle as in the normal arm. With the tilting angle of the supracondylar fracture, there was a significant difference between the follow-up period which was under 1 year and that over 1 year. It is suggested that the supracondylar fracture has a remodeling capacity.