But according to a 1990 study, 56% of bipolar patients also have a substance abuse problem, which can make treatment even more difficult. Experts say that some bipolar patients are known to self-medicate with drugs or alcoholthough it's not recommended. In fact, they say, it does more harm than good.
A Meniscus Tear. The two most common causes of a meniscus tear are due to traumatic injury (often seen in athletes) and degenerative processes (seen in older patients who have more brittle cartilage). It is not uncommon for the meniscus tear to occur along with other damage inside the knee.
This makes sense if we remember the contrecoup mechanism. The initial injury damages one side of the joint. The knee shifts (rupturing the ACL) then shifts back (bruising the bone and tearing the medial collateral ligament). With enough force on the either side, the meniscus can be torn as well.ith greater intensity of force the damage can extend to the meniscus and medial collateral ligament (MCL). And now we know from this new study that before the meniscus or medial collateral ligament (MCL) give way, bone contusion (bruising) occurs first.