Lateral sacrococcygeal ligament
In the human body, the lateral sacrococcygeal ligament is a bilaterally paired ligament extending between the transverse process coccyx, and the inferolateral angle of the sacrum.' The ligament forms a foramen for' an anterior ramus' of the fifth sacral nerve (S5).' The ligament may become ossified. There may be up to three lateral sacrococcygeal ligaments on either side of the sacral hiatus.