Compression of the ‘lateral cutaneous nerve of the thigh’ where is enters the upper thigh through an opening between a strong ligament (inguinal ligament) and most upper and frontal bone of the pelvis (anterior superior iliac spine). The nerve only has fibres for sensation of a patch of skin just above the knee and does not supply any muscles. There is a long list of possible causes and sometimes, no cause is found. Causes include wearing of tight belts or girdles, diabetes, obesity, pregnancy or after surgery in this area. Massaging the area and lying flat can improve the symptoms.
Patients notice numbness or burning sensation in patch just above the knee. There might be an increased sensation and the area can become painful to touch (hyperaesthesia or dysaesthesia). Walking or prolonged standing can worsen the symptoms.
Numbness of a patch just above the knee (the area can considerable vary in size).
Permanent numbness and pain of this area.