By: Orthopedic Doctor

Though, this view may be undoubted, but I think the point of yoga guru is to be stressed here. Yoga gurus tend to overdo it in some way as they tend to have several batches of students. So obviously that brings in a lot of wear and tear. This may not be applicable to general population, who have other things to do apart from yoga.
Getting into a fit of yoga and starting directly with difficult asanas like vajrasan can definitely cause tearing of ligaments.