The purpose of the Initiative is to assist regulators in determining whether and how gas production from the Marcellus Shale and other shale formations in Maryland can be accomplished without unacceptable risks of adverse impacts to public health, safety, the environment, and natural resources.
The Patella fracture may consist of a single crack across the kneecap or the kneecap may be broken into several pieces, in what is known as a 'stellate' fracture. In some instances a forceful contraction of the Quadriceps muscles can be enough to cause a fracture of the patella. This causes a horizontal crack across the knee cap, which makes it impossible for the patient to straighten their knee.
References. View image. A kneecap fracture is a break or crack in the kneecap (patella). It may be just a small crack in the bone, or the bone may break into pieces or shatter. Some fractures may stick out through the skin. A kneecap fracture is also called a patellar fracture. A broken kneecap usually results from a fall onto your knee or a direct hit to the knee. Some kneecap fractures can happen when you are jumping or running. Symptoms may include: 1  A snapping or popping sound at the time of the injury.