This is the definition by the author of the disease called sciatica: a pain commencing at the two bone-binds (joints) mentioned and descending behind to the buttocks,771 preventing due movement, and it comes from matter falling in drops. When it is of long standing, it falls (extends) to the knees, to the feet, and to the joints thereof, emaciating the member more than is wont, and causing greater pain therein than the pain of any other joint.