The coccyx consists of 3-5 fused or partially fused vestigial vertebrae forming the terminal segment of the vertebral column. Co1 (the first coccygeal segment) retains rudimentary transverse processes and cornu that articulate with the sacral cornu at the sacrococcygeal joint. The coccyx provides attachment for the levator ani, coccygeus, anococcygeal ligament, and gluteus maximus.
Coccyx fractures and dislocations from falls cause coccydynia, producing pain with sitting, rising from seated, and defecation. Lateral X-ray in sitting and standing positions assesses coccygeal mobility and dislocation. The coccyx is normally slightly mobile and a flexion angle greater than 25 degrees indicates hypermobility. Coccygectomy is performed for refractory coccydynia after failed conservative treatment and injections.
This website uses cookies to enhance your experience. Some are essential for site functionality, while others help us analyze and improve your usage experience. Please review your options and make your choice.
If you are under 16 years old, please ensure that you have received consent from your parent or guardian for any non-essential cookies.
Your privacy is important to us. You can adjust your cookie settings at any time. For more information about how we use data, please read our privacy policy. You may change your preferences at any time by clicking on the settings button below.
Note that if you choose to disable some types of cookies, it may impact your experience of the site and the services we are able to offer.
Some required resources have been blocked, which can affect third-party services and may cause the site to not function properly.
This website uses cookies to enhance your browsing experience and ensure the site functions properly. By continuing to use this site, you acknowledge and accept our use of cookies.
