Anterior-Scalene Syndrome (Naffziger)

Anterior-scalene (Naffziger) syndrome is a form of thoracic-outlet syndrome in which the brachial plexus/subclavian artery is compressed between the anterior and middle scalene muscles. Clinical: neck/shoulder/arm pain and ulnar-distribution numbness, worse with head turning/arm elevation, with a positive Adson test. Treatment: posture/physical therapy; surgical scalenectomy for progressive compression.

Common Symptoms

Neck/shoulder/arm pain; ulnar numbness; positive Adson test; worse with head turn/arm elevation

Causes and Pathogenesis

Scalene-muscle hypertrophy/spasm compresses brachial plexus/subclavian artery at the scalene triangle.

Treatment

Posture/PT; scalenectomy if progressive compression; pain control

Preventive Measures

Posture correction; relax scalene muscles; PT.

Department to Visit

It is recommended to visit the Orthopedic Surgery department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.