Lancet, 1980 Feb, 1:8163, 318
University Department of Dermatology, Royal Victoria Infirmary, Newcastle upon Tyne, NE1 4LP, UK
Summary by Jon Miles:
A technique for accurate injection of a mixture of steroid and local anesthetic into the joint between the sacrum and the coccyx is described. The patient lies on his or her side, and the doctor inserts a gloved and lubricated index finger into the rectum. The doctor feels for a groove on the inside surface of the coccyx, which is over the sacrococcygeal joint. A needle on a syringe holding the steroid and anesthetic mixture is inserted using the doctor's other hand, pushing the needle towards the finger inside the rectum. The needle should pass into the sacrococcygeal joint, and the contents injected.
The procedure is simple and quick, and can be used in general practice. It has been used on 5 patients, all of whom were pain-free for at least 6 months.