US Constitution the words slave or slavery do not appear in the constitution yet they are certainly referred to it.   1. The 3/5 clause which says that an enslaved person will only count as 3/5 of a person in the census. 2. ban on middle passage slave trade.
Medial compartment arthritis (usually osteoarthiritis) can cause pain on the inner side of the knee. This is usually more of an ache than a sharp catching pain and is present when you walk on the leg. As the arthritis worsens the pain can become continuous and interfere with sleep.
As with any type of pain, inside knee pain may be debilitating especially since the knee joint is such a critical part of daily movement. Patients may experience pain inside of left knee, pain inside of right knee or on insides of both knees. The good news is that if you are able to isolate the pain to a specific location, such as inside of left knee, then your doctor will have an easier time diagnosing the problem.