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Coccygectomy is a surgical procedure in which the coccyx or tailbone is removed. It is considered a required treatment for sacrococcygeal teratoma and other germ cell tumors arising from the coccyx. Coccygectomy is the treatment of last resort for coccydynia (coccyx pain) which has failed to respond to nonsurgical treatment. Nonsurgical treatments include use of seat cushions, external or internal manipulation and massage of the coccyx and the attached muscles, medications given by local injections under fluoroscopic guidance, and medications by mouth. To remove the coccyx, an incision is made from the tip of the coccyx to its joint with the sacrum. The coccyx is cut away from the surrounding tissues, cut off at the joint with the sacrum, and removed. If the tip of the sacrum is rough, it is filed down. The wound is closed in layers.〔An improved technic of coccygectomy. Clinical Orthopedics, 85: 143-145, 1972. Richard C Gardner. http://www.coccyx.org/medabs/gardner.htm〕〔Prevention of post-coccygectomy infection in a series of 136 coccygectomies. International Orthopaedics, 2011, 35 (6): 877-81. Doursounian L, Maigne JY, Cherrier B, Pacanowski J. http://www.coccyx.org/medabs/doursou3.htm〕 ==Complications and risks== As with any operation under anaesthetic, there are risks associated with general anaesthesia itself. An additional possible complication of coccygectomy is infection at the surgical site, due to the site's proximity to the anus, leading to contamination by bacteria from the patient's feces. An analysis of 24 studies of coccygectomy (covering 702 patients)〔Coccygektomi kan være en behandlingsmulighed ved kronisk coccygodyni (Coccygectomy may be a treatment option for chronic coccydynia) Ugeskr Læger 2011 Feb 14; 173(7): 495-500. In Danish. Aarby, Nanett Skjellerup (1), Trollegaard, Anton Mitchell (2) and Hellberg, Steen (2) http://www.coccyx.org/medabs/aarby.htm〕 reported that 19 studies (covering 493 patients) reported the post-surgery infection rate, while the other five studies gave incomplete information. Among the patients in the 19 studies with full information, the infection rate was 12%. In most cases the infection was superficial, but 4% of operations caused an infection that required repeat surgery to treat the infection. However, the use of prophylactic antibiotics, preoperative rectal enema, closure of the wound in two layers and use of a topical skin adhesive have been shown to reduce the rate of infection to 0%.〔 In adults who undergo coccygectomy, one rare complication is a subsequent perineal hernia or coccygeal hernia. In these hernias, bowel or other pelvic contents bulge downward and out of the pelvis through a weakened pelvic floor. This complication has not been reported in persons who underwent coccygectomy while a baby or child. A milder version of hernia is when someone just has prolapse (sagging) of the pelvic floor. To repair these hernias, a variety of surgical techniques have been described. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「coccygectomy」の詳細全文を読む スポンサード リンク
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