A fracture is called a comminuted fracture when there are more than one fracture lines resulting in more than two bone fragments in the fractured bone. High forces and even normal forces produce comminuted fracture in very fragile bones. There may be splintering of the bone ends and reconstitution of the bone is nearly impossible or difficult. A comminuted fracture occurs in cases where there is direct trauma.
A break in the kneecap is known as a fracture of the patella. A fall from a height, a direct blow to the knee and indirect stress are some of the frequent causes of patella fractures. Severe pain, swelling, tenderness and difficulty in straightening the knee are some of the common symptoms associated with patella fracture. Fracture of the patella is also known as kneecap fracture, broken knee, knee fracture and broken patella.
Causes of a Patella Fracture
Severe pain and swelling at the area of the fracture is noticed when a person fractures his patella. It will be difficult to move the leg either forward or backward or extend it. There may be swelling and tenderness around the kneecap along with catching or locking of the knee. If bone fragments split enough to bend or twist normal knee contours, deformity of the knee will be apparent. The patient may experience numbness and chill that extends beyond the site of the fracture, if the blood supply at the site gets affected. In a compound fracture or open fracture, the skin is broken by the bone in extreme cases. Immediate attention should be given to this open fracture to avoid infection. The fracture of the patella is classified into three different types.
There should not be any delay in realigning the broken bones to reduce the shock. To determine if the patient has suffered a fracture the physician will request for x-rays and stress films after he examines the knee. To immobilize the fracture site, the physician may realign the broken bones and place the knee in a cast or splint only if the fragments of bones are lined up well. Surgery is the other option to remove broken pieces of the knee. A person who has suffered a patella fracture is more prone to knee problems in the future.
Bibliography / Reference
Collection of Pages - Last revised Date: December 11, 2017