Complex sentence: At the start of the performance of "Yo!", he was shot up on stage but did not land properly, rupturing the cruciate ligament and severely damaged the cartilage and ligament surrounding the meniscus, requiring surgery and six months of rest.
Split into simpler sentences: At the start of the performance of "Yo!", he was shot up on stage but did not land properly. He ruptured the cruciate ligament and severely damaged the cartilage and ligament surrounding the meniscus, requiring surgery and six months of rest.