Supinator Lodge Syndrome

Definition

The supinatorlogen syndrome is a bottleneck syndrome of the radialis nerve in the area of the elbow joint. The name supinatorlogist is derived from the fact that the radialis nerve splits just below the elbow joint and its motor part, which is damaged in the syndrome, passes through the supinator muscle. Other names for the supinator lodge syndrome include “supinator syndrome, radial compression syndrome or also supinator tunnel syndrome”.

Supinator Lodge Syndrome is similar to the much more common and well-known carpal tunnel syndrome in that it involves the pinching, constriction or compression of a nerve. This affects the so-called deep branch of the radialis nerve. This branch is purely motoric, which means that it only leads to a weakening or paralysis of certain muscles, but not to a loss or disturbance of sensitivity.

Neurology

The radial nerve, also called radial nerve, is a so-called mixed nerve. It contains both motor fibers and sensitive fibers. In the area of the elbow joint, it divides into the two fiber parts.

The sensitive part runs superficially in the direction of the back of the hand and the motor part runs through the supinator muscle into the depths to supply the muscles for stretching the hand. Depending on the location of the nerve damage, the symptom pattern also differs. If only the superficial part is damaged, only sensory disturbances will appear. If only the motor part is damaged, as is the case with the supinatorlogenous syndrome, then the main symptom is muscular failure. If the nerve is damaged further up towards the upper arm, then both sensitivity disorders and motor deficits can be observed.

Causes

The causes of the supinatorlogen syndrome can have completely different genesis. Their common feature is that they constrict the motor branch of the radial nerve and thus damage it. A possible cause of the compression syndrome can be a fracture of the ulna or radius in the area of the elbow joint.

Here, a possible bone displacement or a formed bruise can lead to a squeezing of the nerve and the associated nerve damage. Also a dislocation/dislocation of the spoke head (also called radius head) out of its ligament guide can lead to a constriction of the nerve in the area of the entry point into the muscle. Inflammations, tumors or even fat tumors in the area of the nerve passage can also lead to a constriction. The cause of the supinator lodge syndrome can also be an increase in the muscle mass of the supinator muscle, which is built up through constantly repeated exercises such as when playing tennis or the piano, which can also lead to a constriction of the nerve. As another cause, the constriction syndrome can also be caused by constant pressure from the outside, for example when heavy objects are carried on one side or even small children are carried on the other side.