What are the other Names for this Condition? (Also known as/Synonyms)
- Distal Femoral Fracture
- Distal Femur Fracture
- Distal Femur Fracture of the Knee
What is Fracture of the Distal Femur? (Definition/Background Information)
- The femur is the thigh bone. Distal femur indicates the part of the thigh bone just above the knee
- A Fracture of the Distal Femur is a break or crack that occurs anywhere within the lower region of the femur (near the knee)
- Fractures of the Distal Femur are usually caused by direct injuries/trauma to the leg, associated with falls, participation in contact sports, or automobile accidents
Who gets Fracture of the Distal Femur? (Age and Sex Distribution)
- Distal Femur Fractures are non-specific injuries and can occur in individuals of all age, race, ethnic group, and gender
- High-energy direct trauma, due to automobile accidents and high-risk contact sports, are more likely to occur in men, between the ages of 15-50 years
- Low-energy trauma, caused by fall injuries at home or workplace, are more likely to occur in women over the age of 50 years
What are the Risk Factors for Fracture of the Distal Femur? (Predisposing Factors)
Risk factors associated with Distal Femur Fractures include:
- Participation in rough, high-impact contact sports, such as football, basketball
- Advanced age (elderly adults are higher prone)
- Reduced bone mass (osteoporosis)
- Reduced muscle mass
- Excess body weight associated with obesity, which can cause increased pressure on the joints
It is important to note that having a risk factor does not mean that one will get the condition. A risk factor increases ones chances of getting a condition compared to an individual without the risk factors. Some risk factors are more important than others.
Also, not having a risk factor does not mean that an individual will not get the condition. It is always important to discuss the effect of risk factors with your healthcare provider.
What are the Causes of Fracture of the Distal Femur? (Etiology)
Some of the causes of a Distal Femur Fracture include:
- Direct trauma to the leg associated with an automobile accident
- Taking part in any rough or high-impact sport
- Falling from a significant height (or the fracture occurring since the individual is overweight)
- Fracture of the thigh bone resulting from street fights, gunshot wounds, domestic violence
What are the Signs and Symptoms of Fracture of the Distal Femur?
Signs and symptoms of a Distal Femur Fracture include:
- Sharp and sudden pain in the leg, immediately after the injury occurs
- Swelling, tenderness, and possible bruising around the injury site
- Noticeable deformity of the leg
- Reduced range of motion of the knee or ankle
- Inability to put weight or pressure on the injured leg
- Difficulty walking
- Excessive pain
- In some cases, there may be a protrusion of bone through the skin
How is Fracture of the Distal Femur Diagnosed?
Diagnostic methods that a physician may use to help diagnose a Distal Femur Fracture include:
- Physical examination: A thorough physical examination is important in identifying any noticeable deformities, swelling, contusions, and shortening or angulation of the leg. Individuals are also expected to provide an explanation of the circumstances that caused the injury. In addition to this, a complete medical history can aid in arriving at a definitive diagnosis
- X-ray: X-rays are the most common imaging methods used in assessing a fracture. This diagnostic test can help provide a clear image of the bone, identify exact location of the injury, and determine the extent of the fracture
- Computerized tomography (CT): A CT scan takes a series of X-ray images from several different angles. These images are then merged to create cross-sectional images of bones and soft tissues of the leg, which aids in evaluating the severity of the injury
Many clinical conditions may have similar signs and symptoms. Your healthcare provider may perform additional tests to rule out other clinical conditions to arrive at a definitive diagnosis.
What are the possible Complications of Fracture of the Distal Femur?
Complications related to Fractures of the Distal Femur include:
- Infection of the bone (osteomyelitis)
- Damage to the nerves or blood vessels of the leg
- Prolonged or delayed healing process, due to other medical conditions
- Abnormal pressure build-up in the leg muscles, which can reduce blood flow and prevent nourishment and oxygen from reaching nerve and muscle cells (called compartment syndrome)
- Arthritis may develop, if the fracture impact affects the knee joint or if the bone is improperly aligned
- Uneven leg length
How is Fracture of the Distal Femur Treated?
A Fracture of the Distal Femur usually requires a surgical intervention. However, nonsurgical methods of treatment are used to relieve the symptoms, for mild fractures, or after a surgical correction of the fracture. These include:
- Oral medications, such as acetaminophen or ibuprofen,can help decrease pain
- Stronger prescription medications, such as codeine, or a combination of hydrocodone-acetaminophen, may be prescribed, when over-the-counter medications are unsuccessful in relieving pain
- Skeletal traction is an orthopedic mechanism to hold pieces of the broken bones together
- Individuals are likely to need physical therapy exercises after the cast is removed. The goals of these exercises are to strengthen the leg muscles, improve flexibility, and decrease stiffness. It may take several months for an individual to complete the physical therapy program and regain full strength and functionality
Surgical treatment methods include:
- Intramedullary nailing: During an intramedullary nailing procedure, once the bone is realigned, a specialized metal rod is placed within the bone marrow canal (intramedullary) of the femur. This medal rod is designed to hold the femur bone in its original position
- Open reduction and internal fixation (ORIF): Open reduction is a surgical procedure to realign the fractured bone, to its original position. Surgical hardware (such as plates, screws, or rods) is then used to stabilize the fractured bone under the skin
How can Fracture of the Distal Femur be Prevented?
To prevent a Fracture of the Distal Femur, individuals should be careful and consciously aware, while performing any physical activities, such as sports, or even some normal daily activities that could lead to situations involving accidents. Children must be provided a safe environment to work, study, or play. Any possible dangers should also be anticipated and appropriate safety measures adopted.
A few ways to further help prevent unwanted injuries or Distal Femur Fractures include:
- Individuals who participate in any high-risk sports, should wear appropriate safety equipment to help prevent the possibility of suchfracture
- Wearing appropriate footwear (such as the proper shoe size), may help prevent accidents
- Consuming foods rich in calcium, such as milk, yogurt, and cheese, help build bone strength. Regular diet with appropriate calcium-intake is recommended, even after a femoral shaft fracture. For women, the recommended amount of calcium, increases with age and menopause
- Perform weight-bearing exercises to strengthen bones
What is the Prognosis of Fracture of the Distal Femur? (Outcomes/Resolutions)
- A majority of Distal Femoral Fractures heal without any serious complications
- A full recovery and a return to sports or normal daily activities usually requires 4-6 months post-surgery, depending on the severity of the injury
- When properly treated and rehabilitated, a very high percentage of individuals regain their full strength and range of motion in the injured leg
Additional and Relevant Useful Information for Fracture of the Distal Femur:
A femoral shaft fracture is a break or crack that occurs anywhere in the center region (length) of the femur.
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