Robert Walton @TeamWetDog. Feb. 22, 2017. The Utility Dive Power & Gas Index tracks the interdependence of wholesale electricity and natural gas markets throughout the continental United States, offering a look at how gas prices affect the price utilities, and ultimately consumers, pay for electricity.
Cartilage, or chondral, damage is known as a lesion and can range from a soft spot on the cartilage (Grade I lesion) or a small tear in the top layer to an extensive tear that extends all the way to the bone (Grade IV or full-thickness lesion).
A prosthesisâwhich may also be called an implantâtakes the place of the damaged area of the knee, leaving the other compartments intact. (Partial knee replacement surgery may also be referred to as partial knee resurfacing, unicondylar knee surgery, unicondylar knee replacement, or unicondylar knee arthroplasty.)