Method for examining the Babinski sign
Generally, the Oppenheim sign is primarily tested using a pain stimulus and is a clinical method used to detect damage to the pyramidal tract. The specific procedure is as follows:
The patient lies supine with legs fully extended. The physician firmly grasps the upper portion of the anterior edge of the patient's tibia using the thumb and index finger, then slowly and firmly slides downward along the anterior border of the tibia toward the ankle. If the patient's big toe extends upward (dorsiflexes) while the other four toes fan out in a扇-shaped manner, this is generally considered a positive Oppenheim sign. This pathological response suggests possible lesions in the pyramidal system, such as cerebrovascular disease, central nervous system infection, or spinal cord disorders. If all the toes remain flexed, the result is negative, which is considered normal.
The Oppenheim sign should be evaluated by qualified healthcare professionals to avoid improper technique that could cause discomfort to the patient.