[Electromyographic examinations of the gluteal and adductor muscles after arthrodesis of the hip (author's transl)].

A report is offered in the present work concerning electromyographic tests of the gluteal and adductor muscles in 10 patients suffering from hip arthrodesis, who have experienced stiffening of the hip from 3 to 12 years. Here it has been shown that even years consequent to a completed hip stiffening operation on the monarticular muscles of the hip joint a degree of innervation is to be demonstrated both in standing as well as in going that corresponds to the normal. The electromyographic test of the homolateral monoarticular muscles of the hip-joint is a very good aid for the indication situation regarding a remobilisation operation after hip arthrodesis, while what has been asserted as a result of this concerning the standing leg question is only to be considered with reservation, allowing a definite statement to this problem only in particular cases.