Oppenheim reflex

The Oppenheim reflex (after Hermann Oppenheim ) is one of the pyramid orbit signs that indicate damage to central motor neurons . If the front edge of the tibia is stroked vigorously with the thumb and index finger , as with the other pyramidal tract signs, tonic dorsiflexion of the big toe as well as toes II to V are often spread.

Further pyramidal signs are the reflexes according to Joseph Babinski ( Babinski reflex ), Gordon ( Gordon reflex ), Chaddock ( Chaddock reflex ) and Adolf von Strümpell ( Strümpell sign ), which are sometimes referred to as reflexes of the Babinski group.

These reflexes are physiological in newborns and infants , and obligatorily pathological in adults .

Original publications

• Hermann Oppenheim: On the pathology of the skin reflexes on the lower extremities. Brief preliminary notice. In: Monthly magazine for psychiatry and neurology . Vol. 12, 1902, H. 5, pp. 421-423, doi: 10.1159 / 000220797 .
• Hermann Oppenheim: On the pathology of the skin reflexes on the lower extremities. In: Monthly magazine for psychiatry and neurology . Vol. 12, 1902, H. 6, pp. 518-532, doi: 10.1159 / 000220807 .