What Is a Pelvic or Acetabular Fracture?

A pelvic fracture affects the bones that help support body weight, while an acetabular fracture damages the socket of the hip joint, resulting from severe trauma. Since the acetabulum forms the socket portion of the hip joint and holds the femoral head in place, damage to this area can directly affect joint stability and movement. As a result, you may experience hip pain, instability, and difficulty bearing weight or walking.

At Total Orthopedics and Sports Medicine, our orthopedic hip specialist, Dr. Charles Ruotolo, provides advanced care for pelvic and acetabular fractures. He carefully reviews your fracture pattern, imaging, and hip stability. Then, he creates a customized treatment plan to restore function and support a successful recovery. Call 855-321-6784 to book your appointment in Commack.

What Causes a Pelvic or Acetabular Fracture?

High-impact trauma, weak bones, and severe falls are the most common causes of pelvic or acetabular fractures. Similarly, vehicle crashes, crush injuries, and sports trauma can place extreme force on your hip joint, resulting in a fracture. Here is how these factors can increase the risk of pelvic and acetabular fractures:

High-Energy Trauma

High-energy trauma is one of the most common causes of pelvic and acetabular fractures. This is especially common in younger adults, whose stronger bones usually require a major force to break. During a car crash, motorcycle accident, or fall from a height, a large amount of force can be transmitted through the thigh bone into the hip socket. As the femoral head is forced against the acetabulum, the impact may fracture the socket and surrounding pelvic structures. Depending on the direction of force, the injury may involve the pelvic ring, the hip socket, or both.

The effects of this force are not limited to the bones alone. Since the pelvis contains major blood vessels and other important structures, high-energy fractures can sometimes lead to significant bleeding or vascular injury. In fact, according to a study by Dr. Charles Ruotolo et al., in The Journal of Trauma, vascular injury may occur with acetabular fractures and can directly affect treatment decisions.

Hip Dislocation

A traumatic hip dislocation is another common cause of acetabular fractures. This happens when the femoral head is forced out of the hip socket. In many cases, a posterior hip dislocation damages the back wall of the acetabulum. When this part of the socket breaks, the fracture fragments can affect hip stability, movement, and long-term joint function.

Falls in Elderly Patients

Falls can cause pelvic fractures in elderly patients with severe osteoporosis. As weak bones break more easily, even a simple fall can cause serious injury. In fact, the National Institute on Aging reports that falls are one of the most common causes of serious injuries among older adults. Therefore, patients with osteoporosis face a significantly higher risk of pelvic fractures, even after seemingly minor falls. 

Direct Crush Injuries

Direct crush injuries may also fracture the pelvis when heavy force compresses the hip area. These injuries commonly occur in workplace accidents, construction incidents, or other situations involving heavy impact to the pelvis.

Depending on the direction and severity of the force, crush injuries may damage the iliac wing, sacroiliac joint, or acetabular fossa. Because these injuries often involve complex trauma, you may need urgent imaging and a careful physical examination.

Do Acetabular Fractures Affect Bladder or Bowel?

Yes, acetabular fractures can affect bladder or bowel function if severe trauma involves nearby pelvic structures. Although most acetabular fractures primarily affect the hip joint, high-energy injuries, such as motor vehicle accidents, major falls, or crush injuries, can damage surrounding pelvic tissues. Because the bladder and the bowel are located within the pelvis, severe trauma to this region may affect their normal function.

For example, urethral trauma can interfere with normal urination. Similarly, nerve injury may affect the signals that control bladder and bowel function. According to StatPearls, high-energy pelvic trauma can be associated with injuries to the bladder, urethra, bowel, and surrounding nerves. Because of these risks, doctors closely monitor patients for signs of associated injuries during the initial assessment. In some cases, severe pelvic fractures can be life-threatening due to significant internal bleeding or organ damage.

At our clinic, our surgeon, Dr. Charles Ruotolo, performs a comprehensive evaluation of the injury. He assesses pelvic stability, sensation, nerve function, and any signs of bladder or bowel involvement. If necessary, he provides multidisciplinary care by coordinating with urologists, neurologists, or other specialists to address related concerns while ensuring timely fracture treatment. Call 855-321-6784 to book your consultation with Dr. Charles Ruotolo.

Can Pelvic Fractures Cause Long-Term Disability?

Yes, pelvic fractures can cause long-term disability, especially if the injury affects the nerves, joints, or weight-bearing bones of the pelvis. These complications can interfere with normal movement and reduce your ability to perform daily activities. In some cases, the effects of the injury may persist for months or even years after treatment and lead to challenges such as: 

• Chronic pelvic or lower-back pain 
• Limping from leg-length differences 
• Reduced walking endurance 
• Sciatic nerve injury 
• Hip stiffness and limited motion 
• Difficulty returning to physical work 

Over time, some pelvic and acetabular fractures can also lead to joint-related complications. For instance, posttraumatic arthritis may develop when trauma damages the articular cartilage. In fact, post-traumatic degenerative joint disease is one of the most common long-term complications following acetabular fractures. Similarly, avascular necrosis can occur when reduced blood flow affects bone health. Besides that, if bone cells die, your hip may lose strength and smooth movement.

How Do Doctors Classify Pelvic Fractures?

Doctors classify pelvic fractures based on the location, stability, and severity of the injury. They also examine the extent to which the fracture affects the hip joint and nearby pelvic structures. This evaluation helps doctors determine the type of fracture, predict potential complications, and select the most appropriate treatment.

Acetabular and pelvic fractures are commonly classified into the following categories:

Pelvic Fracture Classification

Pelvic fractures are commonly classified based on pelvic stability after injury. During evaluation, doctors assess whether the broken bones are still aligned or have shifted out of place. They also check whether the pelvic ring can safely support your body weight. Based on these findings, pelvic fractures are commonly categorized as stable, unstable, or pelvic ring fractures.

Stable Pelvic Fractures

Stable pelvic fractures occur when the broken bones remain in proper alignment. Since the pelvis still holds its normal shape, it can usually continue supporting body weight during healing. Moreover, these fractures are often less severe and may improve with rest, limited activity, walking support, and non-surgical treatment.

Unstable Pelvic Fractures

Unstable pelvic fractures are characterized by a loss of structural integrity within the pelvic ring. As the bones shift out of their normal position, the pelvis becomes less capable of supporting the body’s weight and protecting nearby structures. Because the pelvis can no longer support the body safely, doctors may recommend closer monitoring, strong pain control, or surgery to restore stability.

Pelvic Ring Fractures

Pelvic ring fractures affect the ring-shaped structure that connects the front and back of your pelvis. Because this ring helps transfer body weight from your spine to your legs, even one break can affect balance, stability, and walking. These fractures may involve the sacroiliac joint, iliac wing, pubic bones, or other parts of the pelvis. In such cases, doctors carefully check whether the pelvic ring remains stable before deciding on treatment.

Acetabular Fracture Classification

Acetabular fractures are classified separately because they involve the hip socket rather than the pelvic ring. In these injuries, doctors focus on the fracture pattern within the socket and the extent of joint-surface involvement. They also check whether the broken pieces have shifted, since even small changes in the hip socket can affect treatment planning.

According to Judet-Letournel classification, these fractures are usually grouped into simple (elementary fracture patterns) and complex fracture (associated fractures) patterns.

Simple Acetabular Fracture

A simple acetabular fracture usually involves a single fracture line within your hip socket. This type of fracture may affect one wall or one column of the acetabulum.

Common acetabular fracture types include:

• Posterior wall fracture
• Anterior wall fracture
• Anterior column fracture
• Posterior column fracture
• Transverse acetabular fracture.

Complex Acetabular Fracture

On the other hand, complex fractures of the acetabulum affect more than one area of your hip socket. These fractures may involve both major support columns or combine different fracture patterns in one injury. Because more of the hip socket is affected, complex acetabular fractures can be difficult to realign and may require more detailed surgical planning.

Common complex fracture patterns include:

• Both column fractures
• T-type fractures
• Posterior hemitransverse fractures
• Transverse fractures with posterior wall involvement
• Posterior column and posterior wall fractures

At Total Orthopedics and Sports Medicine, Dr. Charles Ruotolo carefully reviews fracture stability, hip joint involvement, and fracture patterns before recommending any treatment. This detailed assessment helps support safe healing and better long-term function. For your convenience, we also offer online tools that provide easy bill payment, medical record access, and clear surgical instructions. Call us at 855-321-6784 to schedule your consultation.

Can Pelvic or Acetabular Fractures Heal Without Surgery?

Yes, pelvic and acetabular fractures can heal without surgery if the bones remain stable and aligned. In fact, according to the American Academy of Orthopaedic Surgeons (AAOS), nonsurgical treatment is recommended for stable acetabular fractures in which the bones have not shifted significantly out of place. Because treatment success depends on the specific characteristics of the injury, doctors carefully evaluate the fracture pattern and joint stability before recommending a treatment.

In these cases, the following nonsurgical treatments can support your recovery:

• Weight-bearing restrictions, which reduce pressure on the fractured bone during healing
• Walking aids, such as crutches or a walker, can improve safety
• Pain medicine, which helps you move more comfortably during recovery
• Targeted exercises improve the range of motion and restore controlled hip movement
• Activity changes, which protect the hip joint from added stress
• A knee immobilizer or leg positioning device, in selected cases, to limit unsafe motion

However, surgery is often recommended when an acetabular fracture disrupts your joint surface or damages the articular cartilage, making it difficult for your hip joint to function normally. For example, a minimally displaced fracture can disturb the articular surface and affect the femoral head. In such cases, doctors may recommend acetabular fracture surgery, internal fixation, or open reduction internal fixation to restore alignment and protect your hip function. Moreover, in elderly patients with severe fracture comminution, pre-existing arthritis, or advanced post-traumatic arthritis, total hip replacement may provide a better long-term solution.

How Does External Fixation Help Pelvic Fractures?

External fixation can help stabilize your pelvis after a severe injury and is often used as part of the initial treatment for unstable pelvic fractures. During this procedure, doctors place pins into strong areas of your pelvic bone, often near the iliac wing, and connect them to an external frame. This frame limits movement, improves stability, and supports emergency care for trauma patients after major injury.

Once your pelvis becomes more stable, your body can form blood clots more effectively and maintain better blood flow to injured tissues. As a result, external fixation may help reduce bleeding associated with unstable pelvic and acetabular fractures. In some situations, doctors may also use skeletal traction to help maintain alignment and reduce stress on your injured pelvis before definitive treatment. This temporary approach can improve your comfort and support early fracture management.

In the early management of pelvic fractures, external fixation may provide several important benefits, including:

• Stabilization of an unstable pelvic ring
• Restriction of movement at the fracture site
• Control of early bleeding
• Support for damage-control trauma care
• Improved comfort during early treatment
• Additional time for treatment planning

However, external fixation is usually a temporary or supportive treatment. While it can stabilize your pelvis during early care, it may not fully treat fractures of the anterior and posterior walls, a displaced fracture, an unstable posterior wall component, or a complex associated fracture pattern. If these injuries disrupt joint alignment or hip stability, your doctor may recommend surgical repair to restore proper positioning and protect long-term hip function.

Is Percutaneous Fixation Helpful for Acetabular Fractures?

Yes, percutaneous fixation can be helpful for certain acetabular fractures, especially if the fracture is well aligned and the hip joint remains stable. In these cases, our hip surgeon, Dr. Charles Ruotolo, uses small incisions and screws to stabilize your fractured bone without fully opening the joint area.

During this procedure, screws hold the bone in place while it heals naturally. Because the incisions are smaller, you may have less soft-tissue injury, blood loss, and wound-related complications. As a result, most patients may recover with less pain and a lower risk of infection. In fact, a clinical study published by the NIH found that percutaneous fixation may reduce soft-tissue injury, blood loss, and the risk of infection. The study also highlights potential risks, including screw misplacement and injury to nearby tissues. For this reason, careful patient selection is essential for safe results.

However, percutaneous fixation is not suitable for every fracture pattern. If you have an unstable posterior wall component or a complex associated fracture pattern, you may need acetabular fracture surgery. In these cases, open reduction internal fixation may better restore the articular surface.

What Are the Success Rates of Pelvic Fracture Surgery?

Pelvic fracture surgery has a success rate of approximately 85% to 90% in patients with displaced acetabular fractures. However, outcomes may vary depending on your injury severity, fracture pattern, and reduction quality. In a PubMed study on surgically treated displaced acetabular fractures, researchers reported satisfactory reduction in 89.9% of patients and excellent functional scores in 63.6%. While patients with poor reduction had worse radiological and functional results. Moreover, poor outcomes after acetabular fractures are associated with factors such as multi-system trauma, increasing age, poor articular congruency, marginal impaction, and associated femoral head articular injury.

Here are some additional factors that can affect your surgical outcome:

• Fracture pattern and injury severity
• Accuracy of fracture reduction
• Quality of joint-surface alignment
• Degree of articular cartilage damage
• Presence of femoral head cartilage injuries
• Timing of orthopedic surgery
• Sciatic nerve involvement
• Overall health and bone quality

Some of these outcome factors depend on the exact acetabular fracture patterns and the structures involved. For example, anterior wall acetabular fractures, posterior wall acetabular fractures, transverse fractures, and associated column fractures can affect hip stability and may require more precise repair. Similarly, posterior dislocation can increase the risk of cartilage damage and post-traumatic arthritis, which may affect long-term surgical results.

What Complications Can Occur After a Pelvic or Acetabular Fracture?

After a pelvic or acetabular fracture, you may develop complications such as heterotopic ossification, blood clots, infection, and neurovascular injury. These complications are common after severe injuries, complex fracture patterns, or surgical treatment. Here is how these complications can affect your recovery and long-term hip function:

Post-Traumatic Degenerative Joint Disease

Post-traumatic degenerative joint disease (DJD) is the most common complication after acetabular fractures. It can develop when trauma damages the joint surface, leading to uneven wear within the hip joint. However, one study reported an 80% hip survival rate at 20 years in patients who underwent open reduction and internal fixation.

Heterotopic Ossification

Heterotopic ossification occurs when extra bone forms in the soft tissues around the hip. It has the highest incidence after extensile surgical approaches for acetabular fractures. Depending on severity, doctors may treat it with indomethacin, low-dose external radiation, or surgical debridement if needed.

Osteonecrosis

When blood flow to the bone is disrupted, bone tissue may begin to die. This condition, called osteonecrosis, occurs in about 6% to 7% of all acetabular fractures, but the rate may increase to 18% in posterior fracture patterns. If not treated early, osteonecrosis can weaken the hip joint and lead to long-term complications.

Blood Clot and Infection Risks

Deep vein thrombosis (DVT), pulmonary embolism (PE), and infection are serious risks after acetabular fractures. These complications may be more significant in transverse fractures and posterior wall fractures. For this reason, doctors carefully monitor circulation, breathing symptoms, and wound healing during recovery.

Neurovascular Injury

Neurovascular injury can occur when severe trauma affects the nerves or blood vessels around the acetabulum. This complication may lead to numbness, weakness, or delayed recovery. In such cases, a neurovascular exam can help identify these problems before they worsen.

How Long Does Pelvic Fracture Recovery Take?

Based on our experience, pelvic fracture recovery typically takes 8 to 12 weeks for basic bone healing. However, full recovery can take 3 to 12 months after severe pelvic and acetabular fractures. Similarly, your age, fracture pattern, treatment type, and bone strength can also affect healing. Here’s how recovery usually progresses after pelvic fracture treatment:

Weeks 1 to 2

During the first one to two weeks, our surgeon, Dr. Charles Ruotolo, focuses on reducing your pain and protecting the fractured bone while early healing begins. He may recommend pain medication, limited weight-bearing, and walker or crutch support to help you move more safely without placing excessive stress on your pelvis.

Our doctor may also recommend ice when appropriate to reduce swelling and improve comfort. In some cases, we may use deep breathing exercises, circulation exercises, or a knee immobilizer or leg positioning device to support safe recovery during the early stage.

For further recovery guidance, you can also review our postoperative guide created by our orthopedic hip specialist, Dr. Charles Ruotolo. This guide explains safe movement, wound care, medication use, and warning signs after a hip surgery.

Weeks 3 to 6

Once your pain and swelling begin to improve, our orthopedic specialist may allow gentle movement. However, we still focus on protecting your pelvis while the fractured bone continues to heal. At this stage, we may recommend continued weight-bearing limits, short walks with support, and gentle hip and leg movement.

Our doctor may also guide your posture, balance, pain control, and swelling management during recovery. We carefully monitor your progress during this stage to make sure the fracture remains stable as your activity level gradually increases. These steps help protect the fracture as your body continues to heal.

Weeks 6 to 12

As the fracture continues to heal, we may gradually increase daily activity. During this phase, recovery often focuses on the following goals:

• Improving walking safety
• Increasing hip and core strength
• Reducing stiffness around the hip joint
• Improving balance during daily movement
• Returning to basic household tasks

3 to 6 Months

In three to six months, our doctor may allow a gradual return to everyday activities as your basic healing improves. Before increasing your activity level, we assess whether you can walk without assistive devices, climb stairs with better control, and move with improved confidence.

Our orthopedic specialist may also check your daily endurance, balance, and independence during this stage. These recovery markers help us understand whether your pelvis can tolerate more activity without increasing pain, instability, or fall risk. Recovery may take longer if you had a displaced fracture, sciatic nerve injury, or damage that affected healthy hip movement. In these cases, we may adjust your recovery plan and activity goals to support safer long-term healing.

6 to 12 Months

From six to twelve months, we focus on your long-term function, stamina, and safe movement. During this stage, we may monitor your hip for posttraumatic arthritis, heterotopic ossification, chronic pain, reduced hip mobility, or persistent nerve symptoms.

Our orthopedic specialist may also watch for blood clots and other delayed complications after severe pelvic trauma. These follow-up visits help us track your recovery, protect your hip function, and adjust your recovery plan when needed.

Book an Appointment with Dr. Charles Ruotolo for Pelvic Fracture Treatment in Commack!

If you have a pelvic or acetabular fracture, you may struggle with pain, stiffness, and limited mobility. As a result, walking, climbing stairs, or standing for long periods may become difficult. In this situation, delaying treatment can increase the risk of joint problems and long-term movement limitations that affect daily life.

As a member of the American Medical Association, our surgeon, Dr. Charles Ruotolo, at Total Orthopedics and Sports Medicine, provides comprehensive care for pelvic and acetabular fractures. He treats both stable and complex fracture patterns using surgical and non-surgical methods that support safer movement and long-term hip function. Contact us or visit 500 Commack Road, Building E, Suite 150B, Commack, NY 11725, to consult Dr. Charles Ruotolo.

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