Knee arthritis is a long condition rather than an event. The road from the first ache on stairs to a conversation about replacement usually runs for years, and a great deal can be done inside it. Most patients who eventually have a knee replaced spent a long time managing well before they needed one.

The road from first symptoms to joint replacement is long, and a great deal can be done inside it. Steven Struhl, MD has treated knee arthritis across its full arc since 1991, from activity modification and injection through replacement. He is board certified in orthopedic surgery and separately in sports medicine, is a Fellow of the American Academy of Orthopaedic Surgeons, and operates at NYU Langone Orthopedic Hospital.

Types of Knee Arthritis

That last one matters more than its name suggests. A knee worn on only one side may be a candidate for a partial replacement or for realignment surgery that shifts load off the worn compartment, both of which preserve more of the natural knee than a total replacement does.

Knee Arthritis Symptoms

Treatment Without Surgery

Most patients manage arthritis effectively for years before replacement enters the conversation, and the measures below do most of that work.

Joint Preserving Options

Between conservative care and replacement sits a group of procedures aimed at buying time on the natural knee, which matter most for younger patients.

When Replacement Enters the Conversation

Replacement is a quality of life decision rather than an emergency. The usual threshold is pain that is no longer controlled by conservative measures, that interferes with sleep and daily activity, and that is supported by imaging showing advanced cartilage loss.

Frequently Asked Questions About Knee Arthritis

Can knee arthritis be reversed?

Lost cartilage does not regenerate, so the arthritis itself is permanent. What can change substantially is pain and function, and many patients manage symptoms effectively for years with strengthening, weight management, activity adjustment, and periodic injections.

Will exercise make my arthritis worse?

The right exercise makes it better. Strong quadriceps and hip muscles reduce the load transmitted through the joint, and inactivity accelerates both stiffness and weakness. What is worth adjusting is the type of activity, favoring cycling, swimming, and walking over running and impact.

When should I consider a knee replacement?

Generally when pain is no longer controlled by conservative measures, when it interferes with sleep and daily activity, and when imaging confirms advanced cartilage loss. It is a quality of life decision, and the timing is largely yours to make with guidance.

What is the difference between partial and total replacement?

A partial replacement resurfaces only the worn compartment and preserves the ligaments and the rest of the joint, which usually means a faster recovery and a more natural feeling knee. It is only an option when wear is genuinely confined to one compartment.

Do cortisone injections damage the joint?

Used judiciously they are a standard part of arthritis management and provide real relief. They are limited in frequency because repeated injections over time can affect cartilage and surrounding tissue quality, which is why they are used deliberately rather than routinely.

Am I too young for a knee replacement?

Age matters less than it once did, but it still factors in, since implants have a finite lifespan and a younger patient may outlive one. That is exactly why joint preserving options such as osteotomy and partial replacement are worth discussing before a total replacement in a younger knee.

Schedule a Knee Arthritis Evaluation in New York City

Arthritis rarely requires an urgent decision, but it does reward an accurate picture early, since knowing how much cartilage remains and whether the wear is confined to one compartment changes what is worth trying and in what order. Dr. Struhl evaluates knee arthritis at his Manhattan and White Plains offices. Contact the practice to schedule an appointment.