Post-Traumatic Arthritis

What is post-traumatic arthritis?

Post-traumatic arthritis is a form of joint damage that develops after a significant injury, such as a fracture, dislocation or ligament tear. When a joint is injured, the cartilage that cushions and protects the ends of bones can become damaged. Even after the initial injury heals, this cartilage damage may continue to affect how the joint moves and absorbs force, leading over time to pain, swelling, stiffness and loss of function similar to osteoarthritis.

At Novant Health, we understand how discouraging it can be when an old injury begins to interfere with your mobility and quality of life. Our orthopedic specialists are here to help you understand what’s happening inside your joint and create a personalized treatment plan to relieve pain, restore movement and protect long-term joint health.

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3D model of human pelvis with a highlighted swollen area on the hip joint.

What causes post-traumatic arthritis?

Cartilage provides a smooth, low-friction surface that allows bones to glide easily during movement. It also helps absorb shock and distribute force across the joint. Unlike other tissues, cartilage has a limited ability to heal itself. When it’s damaged by trauma, even subtle changes in the joint surface or alignment can increase wear over time.

As the joint continues to move under everyday stress, cartilage breakdown may gradually worsen, leading to inflammation and stiffness. Post-traumatic arthritis can affect any joint but most commonly occurs in joints that experience high forces or are frequently injured, including the knee, hip, shoulder and ankle.

Overview

Symptoms

Symptoms often develop gradually and may appear months or even years after the original injury. You may notice:

Persistent joint pain or swelling, especially after activity
Stiffness or reduced range of motion, particularly in the morning
Grinding, clicking or catching sensations within the joint
Weakness or a feeling of instability
Pain that worsens with activity, weather changes or prolonged use

Because symptoms can be slow to develop, early evaluation is important to identify joint changes before they become more advanced.

Causes

Post-traumatic arthritis may develop after injuries that disrupt normal joint mechanics or damage cartilage directly. Common causes include:

Fractures that extend into the joint and disturb cartilage surfaces
Severe sprains or ligament tears, such as ACL or labral injuries, that leave the joint unstable
Joint dislocations that stretch or tear surrounding tissues
Repetitive microtrauma from high-impact sports or physically demanding work
Complications from surgery or improper healing that alter joint alignment

Even when an injury seems fully healed, small changes within the joint can continue to progress, eventually leading to arthritis.

Diagnosis

Our orthopedic specialists take a thorough, patient-centered approach to diagnosis. Your evaluation may include:

A detailed medical history, including past injuries or surgeries
A physical exam to assess pain, swelling, strength and range of motion
X-rays to identify joint space narrowing, bone spurs or alignment changes
MRI or CT imaging to evaluate cartilage, bone and surrounding soft tissues

We explain your results in clear, straightforward language so you understand your diagnosis and treatment options.

How serious is post-traumatic arthritis?

The severity of post-traumatic arthritis varies. Some people experience mild symptoms that respond well to therapy and lifestyle adjustments. Others may develop progressive cartilage loss that makes everyday activities like walking, climbing stairs or lifting objects painful and difficult.

Without treatment, post-traumatic arthritis can worsen over time, leading to chronic inflammation, joint deformity and decreased independence. Early care helps slow progression and preserve joint function.

Why treatment matters

Post-traumatic arthritis doesn’t typically resolve on its own. While pain may come and go, underlying cartilage damage can continue to progress. Early, targeted treatment can reduce symptoms, slow joint degeneration and help you stay active longer.

Left untreated, arthritis may lead to ongoing pain, stiffness and loss of function that affects daily life.

Take the next step

Our board-certified specialists are here to help you heal. They can often diagnose the problem in one visit and get you started with a personalized treatment plan. We offer a wide variety of treatment options.