Did you know that hip fractures are very common in people over the age of 65? Indeed, after a fracture of the neck of the femur, mortality can rise to 20% in the elderly in the first year. This shows how important it is to understand the causes and treatments of these fractures.
Falls are the main reason for hip fractures. Osteoporosis, which weakens bones, makes these fractures more common. A simple hip twist can cause a fracture if the bone is very weak.
The usual treatment for these fractures is hip replacement surgery. This can be with plates and screws or with a metal prosthesis . The goal is to stabilize the fracture and allow the patient to move soon. Physical therapy and exercises are key to recovering well.
In this article, we will look at the anatomy of the femur and hip, types of fractures, risk factors, diagnosis, and treatments. You’ll also learn how to prevent these injuries and take care of your bone health as you age.
What is a fracture of the neck of the femur?
A fracture of the femoral neck occurs in the upper part of the thigh bone. It is just below the hip joint. This area is very fragile because of its structure and the way it is supplied with blood. It is a serious injury that needs urgent medical attention and often requires surgery.
Anatomy of the femur and hip
The femur is the longest and strongest bone in the body. It attaches to the pelvis at its top. In this area, it is divided into three parts: the femoral head, the femoral neck , and the greater trochanter.
The femoral head articulates with the acetabulum of the pelvic bone. Together, they form the hip joint. This joint allows for wide movements in various planes.
Types of hip fractures
Fractures in the upper part of the femur are classified by their location. Those affecting the femoral neck and femoral head are intracapsular. Those that occur below, near the trochanters, are extracapsular.
Intracapsular fractures are more dangerous because the area is less vascularized. This can cause avascular necrosis of the femoral head.
| Type of fracture | Localization | Risk of complications |
|---|---|---|
| Intracapsular | Femoral | High (avascular necrosis) |
| Extracapsulate | Trochanters | Minor |
Femoral neck fractures are also classified by the degree of displacement. The non-displaced ones keep the fragments aligned. The displaced ones, on the other hand, separate the fragments from their normal position. The degree of displacement affects prognosis and treatment.
Causes and Risk Factors of Femoral Neck Fracture
A fracture of the neck of the femur is serious and affects older people. Factors such as osteoporosis, falls, and trauma increase the risk. Lifestyle and general health also play a role.
Osteoporosis and bone weakening
Osteoporosis reduces the density and quality of bones, making them brittle. It is more common in women after menopause because of the decrease in estrogen. A lack of calcium and vitamin D from a young age also increases the risk.
Falls and injuries in older people
Falls are the leading cause of hip fractures in the elderly. Aging reduces muscle strength and coordination, increasing the risk of falls. Slower reflexes and lower protective capacity also contribute to the risk.
Direct trauma , such as blows, can cause fractures in weak bones due to osteoporosis.
| Age | Percentage of hip fractures |
|---|---|
| Under 75 years of age | 17.3% |
| 76-85 years | 41.4% |
| Over 85 years | 41.3% |
Other factors that increase the risk of fracture
In addition to osteoporosis and falls, other factors increase the risk of fracture:
- Medicines such as glucocorticoids, heparin, or warfarin weaken bones.
- Sedentary lifestyle reduces bone and muscle mass.
- Vitamin D deficiency affects calcium absorption and bone health.
- Early menopause or removal of ovaries decreases estrogen levels.
- Diseases such as multiple myeloma damage bone structure.
- Smoking and alcoholism harm bone health.
The combination of weak bones and trauma from falls is the main risk of femoral neck fracture in the elderly. A diet rich in calcium and vitamin D, regular exercise, and fall prevention can reduce the risk.
Symptoms of a fractured femoral neck
The symptoms of a fractured femoral neck vary depending on the severity. But they usually include severe hip pain and the inability to walk. After a fall or blow to the hip, the pain is sudden and severe in the thigh and groin.
If the fracture is complete, a deformity may be seen in the leg. The leg may rotate outward or inward. Also, it is difficult to lift the leg from the lying position.
Some more signs of a femoral neck fracture are:
- Swelling and bruising in the hip
- Tenderness and pain when moving the leg
- Spasms and stiffness in the hip and thigh
- Inability to bear weight on the leg
- Altered gait or limping
| Symptom | Description |
|---|---|
| Hip | Severe pain in the hip and groin after a fall |
| Inability to walk | Difficulty or inability to put weight on the leg |
| Shortening and rotation of the leg | The leg may be shorter and more rotated than the healthy leg |
| Swelling and bruising | Swelling and purple discoloration in the hip |
| spasms and stiffness | Involuntary contractions in the hip muscles |
It’s vital to seek medical attention quickly if you think you have a fracture in your femoral neck. A delay in treatment can cause serious complications , especially in older people. A physical exam and imaging studies, such as X-rays, will help confirm the fracture and determine treatment.
Diagnosis of femoral neck fracture
Diagnosing a femoral neck fracture begins with a detailed clinical examination. The doctor seeks to understand the patient’s symptoms and whether there has been a recent fall. It also assesses pain, leg mobility, and hip deformities.
Hip X-rays are key to confirming the fracture and knowing where it is. These images clearly show any breaks or displacement in the femoral neck. In most cases, only anteroposterior and lateral x-rays are needed to diagnose.
Physical exam and x-rays
The doctor looks at how the affected leg is, looking for abnormal external rotation. It also looks for bruising, swelling, or deformities in the hip. The patient feels a lot of pain when moving the leg or pressing on the hip.
Hip X-rays are the first step in diagnosing a femoral neck fracture. These images show where the fracture is, how far it has traveled, and whether there are complications such as avascular necrosis. Anteroposterior and lateral radiographs are the most commonly used.
Other Complementary Imaging Tests
If the X-rays are not clear, additional tests may be needed. Computed tomography (CT) and magnetic resonance imaging (MRI) are options. These tests may show subtle or non-displaced fractures.
CT provides detailed images in multiple planes, helping to see small or non-displaced fractures. It also helps assess the extent of the fracture and whether there are any additional fragments.
MRI is good for seeing soft tissue lesions and bone edema. It may also show early complications, such as avascular necrosis of the femoral head. This can influence treatment.
In most cases, hip X-rays are enough to diagnose a femoral neck fracture. But if there are doubts or atypical findings, CT and MRI can offer more information for appropriate treatment.
| Diagnostic | Advantages | Directions |
|---|---|---|
| X-ray | Confirms the fracture and its location | First line of diagnosis |
| CT scan | Detects subtle or non-displaced fractures | Inconclusive X-rays |
| MRI | Evaluates soft tissue injuries and bone | Suspected early complications |
Surgical treatment of femoral neck fracture
Surgical treatment is key to a good recovery from femoral neck fractures. Before, these fractures had a very poor prognosis. But thanks to advances in surgery and materials, the results have improved a lot.
It is best to operate in the first 48 hours after the fracture. This helps avoid complications and improves recovery. Operating early also reduces the risk of death and long hospital stays.
Internal fastening with screws and plates
For femoral neck fractures, internal fixation with screws and plates is used. Cannulated screws, plates, or intramedullary pins are chosen depending on the fracture. Immobilization with pins or screws is ideal for the fracture to heal well.
One study compared Retrograde Intramedullary Nail (CIMR) with Blocked Plaques in 221 people. Although the CIMR showed better results in the short term, there were no differences in the long term. However, CIMR may increase the risk of varus/valgus deformity.
Partial or total hip replacement (arthroplasty)
If the fracture is severe or there is a risk of necrosis, the hip may need to be replaced. Hemiarthroplasty replaces only the femoral head with a prosthesis. Total hip arthroplasty replaces the head and acetabulum.
In Cuba, between 2001 and 2007, 660 patients were operated on. 91% received surgery, 83.2% of which were urgent. The most commonly used techniques were the AO nail-plate, partial prosthetic replacement, and spongy screws.
| Surgical | Directions |
|---|---|
| Internal fastening with screws and plates | Non-displaced or minimally displaced fractures |
| Hemiarthroplasty | Displaced fractures in older patients or patients with low functional demand |
| arthroplasty | Displaced fractures in active patients or patients with pre-existing joint disease |
The choice of surgical technique depends on several factors. This includes the type of fracture, the patient’s age, activity level, and bone quality. A multidisciplinary team is key to the postoperative management of geriatric patients and ensure optimal recovery.
Recovery and rehabilitation after surgery
After surgery to repair a fracture of the femoral neck, recovery and rehabilitation are key. This helps to regain mobility and function. Recovery usually takes 4 to 6 months, but can be longer, up to 12 months.
Physiotherapy and exercises are essential in this process. They help improve mobility, muscle strength, and the ability to do daily activities.
Physical therapy and strengthening exercises
Patients can start walking with the help of physical therapists on the first day or two. Walkers or crutches are used to support recovery. Physical therapy seeks to improve mobility, muscle strength, and the ability to perform everyday activities.
The prescribed exercises are key to strengthening the leg and regaining function. Post-femur fracture physical therapy may include:
- Manual therapy to improve joint mobility
- Progressive muscle strengthening exercises
- Gait and balance training
- Use of assistive devices as needed
- Education about hip protection during daily activities
Prevention of postoperative complications
It is crucial to prevent postoperative complications, especially in older patients with pre-existing conditions. Common complications include deep vein thrombosis, pulmonary embolism, pressure ulcers, pneumonia , and urinary tract infections. To prevent these risks, the following measures are recommended:
- Early mobilization and frequent ambulation
- Use of compression stockings or intermittent compression devices
- Regular postural changes to prevent pressure ulcers
- Breathing exercises and pulmonary physiotherapy
- Proper hydration and pain management to promote mobility
| Complication | Preventive measures |
|---|---|
| vein thrombosis | Early mobilization, compression stockings |
| Pressure | Regular postural changes, pressure-relieving surfaces |
| Pneumonia | Breathing exercises, pulmonary physiotherapy |
| Urinary tract | Proper hydration, regular hygiene |
With a comprehensive rehabilitation program and preventative measures, patients can improve their post-operative recovery. This reduces the risk of complications after a fracture of the neck of the femur.
Prevention of femoral neck fractures in older people
To prevent hip fractures, maintaining bone health is key. This is achieved with a diet rich in calcium and vitamin D. It is also important to use calcium and vitamin D supplements under medical supervision.
Performing resistance and weight-bearing exercises helps strengthen bones. This stimulates the formation of new bone and maintains bone density.
Preventing falls also involves staying active. This improves balance, coordination, and responsiveness. It is vital to take care of your visual health to avoid obstacles.
Avoiding excessive alcohol and tobacco use also helps prevent falls and fractures.
Adapting the home environment is an effective measure. Removing loose carpets and objects that can cause tripping is key. Installing grab bars in the bathroom and improving lighting is also important.
Using appropriate and stable furniture increases safety in the home. When needed, using aids such as canes or walkers can offer additional support. This reduces the risk of falls and fractures in older people.
FAQ
What is a fracture of the neck of the femur?
It is a bony lesion in the part of the femur that joins the head with the greater trochanter. It is common in older people, especially women with osteoporosis.
What are the most common causes of a femoral neck fracture?
These fractures are usually from falls and weak bones from osteoporosis. The elderly are more prone.
What other factors increase the risk of hip fracture?
The risks include older age, osteoporosis, and the use of certain medications. Also sedentary lifestyle, vitamin D deficiency, and diseases such as multiple myeloma. Smoking and alcoholism also play a role.
What are the symptoms of a femoral neck fracture?
The patient feels severe pain in the hip and thigh. You also have an inability to move your leg. If it is full, the affected leg is shorter and can rotate.
How is a femoral neck fracture diagnosed?
Diagnosis is based on symptoms and history of falls. The hip X-ray confirms the fracture. In some cases, CT scans or MRI are used.
What is the treatment for a fracture of the neck of the femur?
Treatment is surgical, ideally within the first 48 hours. Fixation with screws, plates, or pins can be used. In severe cases, the femoral head or the entire joint is replaced with a metal prosthesis.
How is the recovery after surgery for a fracture of the neck of the femur?
Post-operative rehabilitation is key. The patient is encouraged to walk early with crutches. Physical therapy helps maintain mobility. Complications include thrombosis, embolism, ulcers, pneumonia, and urinary tract infections.
How can femoral neck fractures in older people be prevented?
Staying active and strong is critical. A diet rich in calcium and vitamin D is also important. Avoiding tobacco and alcohol helps. Adapting the home with grab bars reduces the risk of falls.
