The sacrococcygeal joint connects the sacral apex to the coccyx base through a fibrocartilaginous disc, allowing small movements of the coccyx during defaecation and childbirth. It progressively ossifies with advancing age. Coccygeal trauma from falls or childbirth produces coccydynia — persistent coccygeal pain that is debilitating but rarely requires surgical intervention.
Coccydynia (tailbone pain) from trauma, prolonged sitting, or childbirth is treated with cushioned seating, corticosteroid injection at the sacrococcygeal joint, manipulation of the coccyx, and rarely coccygectomy for truly refractory cases. The sacrococcygeal joint is the target for caudal epidural injection via the sacral hiatus superior to the coccyx.
Coccygeal pain from trauma or childbirth managed with cushioned seating, injection, and rarely coccygectomy.
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