Patellar Fracture Treatment in NJ

Clifton Physical Therapy
Patellar Fracture Treatment in NJ

A patellar fracture, commonly known as a broken kneecap, is a serious knee injury that can make walking, standing, and even straightening the leg difficult. Because the kneecap plays a critical role in knee movement and stability, prompt diagnosis and appropriate treatment are essential for restoring function and preventing long-term complications.

What Is a Patellar Fracture?

The patella, or kneecap, is a small triangular bone located at the front of the knee. It sits within the quadriceps tendon and acts as a protective shield for the knee joint while improving the efficiency of the quadriceps muscles during walking, climbing stairs, running, and jumping.

A patellar fracture occurs when this bone breaks due to a significant force or trauma. Although patellar fractures account for only about 1% of all skeletal fractures, they can have a major impact on mobility because they may disrupt the knee's extensor mechanism. This system includes the quadriceps muscles, tendons, ligaments, and the patella itself, allowing you to straighten your leg.

When the kneecap fractures, patients may lose the ability to actively extend the knee, making everyday activities extremely challenging.

What Causes a Patellar Fracture?

Most patellar fractures occur as a result of direct trauma to the front of the knee. The injury can happen suddenly and often involves significant force. Common causes include:

  • Falling directly onto the knee

  • Sports-related collisions or impacts

  • Motor vehicle accidents, especially dashboard injuries

  • Workplace accidents

  • Bicycle or motorcycle crashes

  • Slips and falls on hard surfaces

In some cases, the fracture may occur indirectly. A sudden and powerful contraction of the quadriceps muscle can place excessive stress on the kneecap, causing it to break. This mechanism is less common but can occur during jumping, landing awkwardly, or attempting to prevent a fall.

Older adults face a higher risk of patellar fractures due to decreased bone density and an increased likelihood of falls. Research has shown that low-energy falls account for approximately 70% of patellar fractures in individuals over 65 years of age.

What Are the Different Types of Patellar Fractures?

Patellar fractures are classified according to the pattern of the break and the degree of displacement. Understanding the fracture type helps determine whether conservative care or surgery is necessary.

Stable (Nondisplaced) Fracture

In a stable fracture, the bone fragments remain properly aligned despite the break. The extensor mechanism usually remains intact, allowing the fracture to heal without surgery in many cases.

These injuries often respond well to immobilization and physical therapy.

Displaced Fracture

A displaced fracture occurs when the broken bone fragments separate and no longer line up correctly. Because the kneecap is unable to function normally, surgery is often recommended to restore proper alignment and knee mechanics.

Transverse Fracture

This is the most common type of patellar fracture. The kneecap breaks horizontally into two separate pieces, often due to a sudden forceful contraction of the quadriceps muscle or a direct impact.

Comminuted Fracture

A comminuted fracture occurs when the kneecap breaks into three or more fragments. These injuries are often caused by high-energy trauma such as motor vehicle accidents or severe falls. Treatment depends on the size and position of the fragments.

Open Fracture

An open fracture occurs when the broken bone penetrates the skin or when a wound exposes the fracture site. This is considered a medical emergency because of the increased risk of infection and soft tissue damage. Prompt surgical intervention is typically required.

Vertical Fracture

A vertical fracture runs from the top to the bottom of the kneecap. Many vertical fractures remain stable and can often be managed without surgery if alignment is maintained.

What Are the Symptoms of a Patellar Fracture?

Symptoms can vary depending on the severity of the injury, but most patients experience immediate pain and difficulty using the affected leg.

Common signs and symptoms include:

  • Severe pain at the front of the knee

  • Rapid swelling around the kneecap

  • Bruising or discoloration

  • Tenderness when touching the knee

  • Difficulty bending or straightening the leg

  • Inability to perform a straight-leg raise

  • Difficulty standing or walking

  • A noticeable gap or deformity in the kneecap

  • Grinding sensations during movement

  • Reduced knee strength

How Is a Patellar Fracture Diagnosed?

Accurate diagnosis is essential because treatment decisions depend on the fracture pattern, displacement, and whether the knee's extensor mechanism remains intact.

During your evaluation, a healthcare provider will review how the injury occurred and assess your symptoms. A physical examination typically includes checking for swelling, bruising, tenderness, deformity, and your ability to straighten the knee.

Patients with a significant patellar fracture often cannot perform a straight-leg raise, which may indicate disruption of the extensor mechanism. Diagnostic imaging usually includes:

X-Rays

Standard X-rays are the primary imaging tool used to confirm a patellar fracture. They help determine:

  • The location of the fracture

  • The number of bone fragments

  • The degree of displacement

  • Joint involvement

CT Scan

A CT scan may be recommended when the fracture pattern is complex or when surgical planning is required. CT imaging provides a more detailed view of the bone and surrounding structures.

MRI

Although not routinely required, MRI may be used when associated injuries to ligaments, tendons, cartilage, or other soft tissues are suspected.

What Are the Non-Surgical Treatment Options for a Patellar Fracture?

Not every patellar fracture requires surgery. Stable fractures with minimal displacement and an intact extensor mechanism can often heal successfully through conservative treatment.

Research has shown that properly selected patients with nondisplaced fractures achieve good to excellent outcomes in approximately 90% of cases when managed non-operatively. Non-surgical treatment may include:

Knee Immobilization

The knee is typically immobilized in full extension using:

  • A knee immobilizer

  • A hinged knee brace locked in extension

  • A cast

 

Protected Weight Bearing

Many patients are allowed to bear weight while wearing the brace or cast, provided the knee remains fully extended. Crutches may be recommended during the initial recovery period to improve comfort and safety.

Pain and Swelling Management

Pain and inflammation are commonly managed through:

  • Ice therapy

  • Elevation

  • Compression

  • Physician-recommended medications

Gradual Return of Motion

Once imaging confirms adequate healing, controlled knee motion is introduced. Regaining movement too early may disrupt healing, while waiting too long can contribute to stiffness. This is where structured rehabilitation becomes particularly important.

When Is Surgery Necessary for a Patellar Fracture?

Surgery is often recommended when the fracture fragments have shifted out of position or when the extensor mechanism can no longer function properly. Your orthopedic surgeon may recommend surgery if:

  • The fracture is displaced

  • The kneecap has broken into multiple unstable fragments

  • The joint surface is significantly disrupted

  • An open fracture is present

  • The extensor mechanism is damaged

  • The fracture fails to heal appropriately with conservative care

The primary goals of surgery are to:

  • Restore normal alignment

  • Preserve knee function

  • Reconstruct the joint surface

  • Allow safe movement during recovery

  • Reduce the risk of long-term arthritis

Why Is Physical Therapy Important After a Patellar Fracture?

Whether treatment is surgical or non-surgical, physical therapy plays a crucial role in restoring knee function. After weeks of immobilization, many patients experience:

  • Muscle weakness

  • Joint stiffness

  • Reduced flexibility

  • Balance deficits

  • Difficulty walking

  • Limited endurance

Without rehabilitation, these problems may persist long after the fracture has healed.

 

Early Rehabilitation Phase

The initial focus is on:

  • Managing pain and swelling

  • Protecting the healing fracture

  • Maintaining circulation

  • Preventing excessive muscle loss

Exercises may include:

  • Quadriceps activation exercises

  • Straight-leg raises when appropriate

  • Gentle hip strengthening

  • Ankle pumps

  • Patellar mobility techniques

Intermediate Rehabilitation Phase

As healing progresses, treatment shifts toward restoring motion and functional strength.

Therapy may include:

  • Stationary cycling

  • Range-of-motion exercises

  • Step-ups

  • Mini squats

  • Balance training

  • Gait retraining

Advanced Rehabilitation Phase

The final stage focuses on returning patients to their desired activities.

Treatment may involve:

  • Functional strengthening

  • Stair training

  • Sport-specific drills

  • Agility exercises

  • Proprioception training

What Complications Can Occur After a Patellar Fracture?

Most patients recover well when treatment is started promptly. However, complications can occur, particularly after severe injuries. Potential complications include:

  • Knee stiffness

  • Chronic pain

  • Muscle weakness

  • Delayed union

  • Nonunion

  • Malunion

  • Post-traumatic arthritis

  • Cartilage damage

  • Reduced knee mobility

  • Difficulty climbing stairs

  • Persistent swelling

Research suggests that post-traumatic patellofemoral arthritis is one of the most common long-term complications following significant patellar fractures.

When Should You Seek Treatment for a Knee Injury?

You should seek medical attention immediately if you experience:

  • Severe knee pain after trauma

  • Rapid swelling

  • Inability to bear weight

  • Inability to straighten the leg

  • Visible knee deformity

  • An open wound near the kneecap

  • Persistent pain that does not improve

 

At Clifton Physical Therapy, our team develops individualized rehabilitation programs designed to support each stage of recovery. To schedule an evaluation or learn more about patellar fracture treatment in NJ, call (973) 241-1338 today.

References

  1. Khatri K, Sharma V, Gupta A, et al. Comprehensive Rehabilitation of a Patient With Patellar Fracture: A Case Report. Cureus. 2024. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC10822036/

  2. Physiopedia. Patellar Fractures. Available at: https://www.physio-pedia.com/Patellar_Fractures

  3. Cleveland Clinic. Patella Fracture (Broken Kneecap). Available at: https://my.clevelandclinic.org/health/diseases/22081-patella-fracture

What patients are saying

"I recently had ankle surgery and Clifton PT has been nothing short of amazing! My goal was to get back to playing soccer as quick as possible before the college season started and so far I'm right on track. Izzy, Bianca, Tiff, and John have gone above and beyond to make sure I'm back to 100%. Couldn't be more grateful to be treated by the best team ever!." - Nat Rufino

All the therapists at Clifton Physical Therapy are awesome, but I spend most of my time with Izzy and Bianca—and they’ve been amazing. They’re enthusiastic, knowledgeable, and always take the time to explain what I’m doing and what my issues are. Their positive energy and clear communication make a big difference in my recovery." - Bryan Tompkins

"Going Clifton physical therapy was one of the best thing that came out of my back pain! Every single staff member is amazing and cares for your recovery! I have been with them for the past couple of months and now continuing their workout program! I can’t recommend them enough! Tiffany, Izzy, Bianca and everyone else I have worked with there! Can’t rave about them enough!!." - Monica Mehta

"Clifton Physical Therapy has been a great place for me to heal my meniscus tear. The staff is very knowledgeable and friendly, and has been extremely helpful in guiding me through my recovery. I highly recommend their services.." - Kelly Bevando


Clifton Physical Therapy


✆ Phone (appointments): (973)-241-1338


Address: 1059 Bloomfield Ave, Clifton, NJ 07012