Understanding Hip and Knee Arthritis: What Causes the Pain?

Discover what causes hip and knee arthritis, why it hurts, and the treatment options available—from therapy to joint replacement. Dr. Christopher Roberts explains arthritis care in Venice, Florida.

Why Joint Pain Becomes a Daily Struggle

If every step, climb, or bend comes with pain or stiffness, arthritis could be the reason. The hip and knee joints bear most of your body’s weight, making them especially prone to wear and tear over time. But understanding what’s actually happening inside these joints can help you make informed decisions about your treatment and long-term joint health. Dr. Christopher Roberts specializes in diagnosing and treating arthritis with both non-surgical and advanced surgical options—helping you move more freely and live without constant pain.

What Is Arthritis?

Arthritis isn’t a single condition—it’s a broad term for joint inflammation that leads to pain, stiffness, and loss of motion. There are many types, but the most common affecting hips and knees is osteoarthritis.

Osteoarthritis is a degenerative joint disease in which the smooth cartilage covering the ends of bones wears away. Without this natural cushioning, bones rub together, causing pain, swelling, and sometimes grinding sensations (known as crepitus).

Over time, this process can also lead to bone spurs and joint deformity.

Why Hip and Knee Arthritis Hurts

Cartilage itself doesn’t have nerves—so what causes the pain? The discomfort comes from surrounding structures that react to the joint damage:

• Inflamed joint lining (synovium): Releases pain-causing chemicals.

• Bone changes: Friction between exposed bone surfaces triggers aching and stiffness.

• Muscle imbalance: Weak muscles increase joint stress.

• Swelling and fluid buildup: Add pressure inside the joint capsule.

This combination makes simple movements—like standing from a chair or walking up stairs—feel difficult and painful.

Risk Factors and Causes

While aging is the biggest risk factor, it’s not the only one. Other contributors include:

• Previous injuries (like fractures or ligament tears)

• Genetics or family history of arthritis

• Obesity, which increases load on weight-bearing joints

• Repetitive stress from certain jobs or sports

• Inflammatory diseases such as rheumatoid arthritis

Treatment Options: From Lifestyle to Surgery

1. Non-Surgical Management

Many people find relief with simple lifestyle and medical changes:

• Weight control: Reducing even a few pounds can significantly lessen joint pressure.

• Physical therapy: Strengthening surrounding muscles improves stability and motion.

• Medications: Anti-inflammatories (NSAIDs) and topical creams help manage pain.

• Injections: Cortisone or viscosupplementation (“gel” injections) can provide temporary relief.

2. Advanced Surgical Options

When arthritis becomes severe and non-surgical measures fail, joint replacement surgery may offer the best long-term outcome. Dr. Christopher Roberts performs MAKO robotic-assisted total knee replacements and modern total hip replacements designed for precision, stability, and natural motion. These procedures replace the worn surfaces of the joint with durable implants that mimic normal anatomy—relieving pain and restoring function.

Living with Less Pain—and More Freedom

Arthritis can feel discouraging, but treatment has come a long way. With a personalized plan combining therapy, lifestyle changes, and advanced surgical options when needed, most patients regain the ability to walk, exercise, and enjoy daily life again—often with minimal or no pain.

Call to Action

If hip or knee arthritis is slowing you down, there’s no need to live with chronic pain. Schedule a consultation with Dr. Christopher Roberts in Venice, Florida for a personalized arthritis evaluation and treatment plan. Call or visit www.drchrisroberts.com today to take the first step toward lasting relief.