Also known as a broken kneecap, a<unk>  usually follows a history of trauma and commonly presents with swelling, pain, bruising and inability to both bend and straighten the knee. The pain is worse when trying to stand and the person may be unable to walk. The pain can also be aggravated by prolonged periods of sitting. A painful defect may be felt in the knee and there may be a blood in the joint. Complications Complications may include injury to the tibia, femur, or knee ligaments. In the longer term, the knee may not regain full movement, pain may persist and there is an increased likelihood of osteoarthritis of the knee. If there is an associated open wound as in an open fracture, complications also include risk of infection, inability of the broken bones to reunite and osteonecrosis.
Patella fracture
Bipartite patella
Humerus fracture
Tibial plateau fracture
Elbow fracture
Patellar tendon rupture
Ankle fracture
Jefferson fracture