The joints wherever your ribs meet your sternum (breastbone) are cartilaginous. The pubic symphysis joint that joins your still left and correct pelvic bones together is an additional cartilaginous joint. Syndesmoses may be sprained. In the leg, abnormal external rotation can tear the distal tibiofibular syndesmosis and displace the fibula https://www.amazon.com/dp/B082XJ4R2F