
Knee Osteoarthritis Treatment in Naples & Marco Island
For patients with chronic knee pain from osteoarthritis, the typical path through cortisone injections and "wait until you need a replacement" leaves many people stuck — not bad enough for surgery, not getting better with what has been offered. This page describes how we evaluate and treat knee osteoarthritis at Timeless Interventional of Naples, including the regenerative options like platelet-rich plasma (PRP) that often produce meaningful, durable relief.
What knee osteoarthritis is.
Knee osteoarthritis is the gradual breakdown of cartilage and changes in the bone of the knee joint, producing pain, stiffness, and loss of function over time. It is one of the most common chronic pain conditions in adults, particularly after age 50, and its impact on daily life is often underestimated until it interferes with walking, exercise, and sleep.
How we evaluate.
Evaluation includes a detailed history — pain pattern, what makes it better and worse, prior treatment — a focused exam, and review of imaging when available. We assess not just the joint itself but the contributors that often go missed: pelvic and hip mechanics, gait, muscle imbalances, body weight, and overall inflammatory status.
Treatment options.
Standard care begins with weight management when relevant, physical therapy focused on the quadriceps and surrounding stabilizers, and judicious use of anti-inflammatory medications. When these are not enough, the typical next step has historically been corticosteroid (cortisone) injections, which can provide weeks to months of relief but, in some studies, may accelerate cartilage loss over time when used repeatedly. We discuss this trade-off honestly with every patient.
PRP and regenerative options.
Platelet-rich plasma is one of the most established regenerative options in interventional medicine, and knee osteoarthritis is one of its strongest indications. PRP is prepared from your own blood, concentrated to deliver high doses of growth factors to the joint, and delivered under ultrasound guidance for precise placement. Compared with cortisone, PRP tends to produce slower but longer-lasting relief, with growing evidence suggesting it may help slow disease progression, though it is not a cure.
PRP is most effective for mild to moderate knee osteoarthritis. We evaluate each patient individually and will tell you honestly whether PRP is likely to help in your specific case, or whether another approach is the better fit.
When to consider us.
A consultation makes sense if cortisone is wearing off too quickly, if you would prefer to avoid repeated steroid use, if you are not yet ready for joint replacement, or if you simply want to understand the full range of options — including regenerative ones — before deciding on a path.
Our approach.
At Timeless Interventional of Naples, Dr. Chaturani Ranasinghe, MD, is a double board-certified anesthesiologist and interventional pain physician with extensive experience in image-guided procedures and regenerative treatment options. We serve patients across Naples, Marco Island, and the broader Southwest Florida region.

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