The most common causes of knee pain are injury, repetitive use of the joints and age.  These can lead to abnormal adhesions, scar tissue, chronic inflammation and arthritis.  These abnormalities can make it difficult to walk, climb steps, bend at the knee, and even have a good night’s sleep without pain.  Since ligaments, tendons, and cartilage don’t have a good blood supply, these tissues tend to heal very slowly or not at all unless a program of care is designed to address that.