Kerera Symptom

Kehrer's symptom is a symptom described by the German neurologist Fritz Kehrer (1883-1967).

The symptom is the appearance of pain in the buttocks and upper thigh due to irritation of the dura mater in the lumbosacral spinal cord. Pain occurs due to irritation of the spinal nerve roots innervating this area.

The symptom can be observed with inflammatory, traumatic, tumor and other lesions of the lumbosacral spinal cord and its membranes.

Identification of the kerer symptom helps in diagnosing diseases of the lower lumbar spine and spinal cord at this level. The symptom is described in Kehrerer’s work “Local diagnosis of diseases of the spinal cord” (1910).

Article for medical students about Kerera's symptom

Introduction

Kehrer's sign is a type of objective sign of peripheral nerve inflammation seen in certain diseases (such as nerve infections or tumors) that can help a doctor diagnose and evaluate a patient's condition. This symptom was first described by the German neurologist Kehrer in the 19th century, for which it received his name. In this article we will look at the history and features of Kehrer's symptom, and also give the basics of its diagnostic value.

Etymology The origin of the term "symptom" is related to the word syn, which means "together", and phemi, which means "to mark, notice". Thus, the word "symptom" can literally be translated as "sign together." Diagnostic signs or symptoms can be used to identify diseases, conditions and problems in the human body.

Kehrer's symptom

The Kerera sign is a stretch reflex of the calf muscle that occurs after rubbing the calf or knee. Physiological reflex calf paralysis is caused by hand pressure on the knee or calf, irritating pain receptors in the calf and nerve. When physiological reflex paralysis occurs, tension of the sural nerve towards the arm will be a sign for the symptomatic Kehrer test.

Individual signs may be lost within a complex symptom. One of the goals of Kererovsky sign research is to explore the cognitive,