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.
The sprain will occur in one or more of the knee ligaments. A Medial ligament sprain will cause pain on the inside of the knee and is usually a result of an impact on the outside of the knee. Lateral ligament sprain sprain will result in pain on the outside of the knee joint and is often caused by an impact on the inside of the knee. The cruciate ligaments cross over in the middle of the knee and provide forwards and backwards stability.