PRP and orthobiologics in Des Peres, MO

I-270 NORTH

From Des Peres, our PRP and orthobiologic clinic is a straight nineteen-minute run north on I-270. A meniscus tear on an MRI is not automatically the reason your knee hurts. Operating on one is not automatically the answer.

Schedule Now Call (314) 886-5092

Getting here from Des Peres

I-270 north to Natural Bridge Road. It is a straight nineteen-minute run. Parking is outside the door, with a ground-floor entrance.

The most over-attributed finding in the knee

Degenerative meniscal tears are very common in middle-aged and older knees. That includes people with no pain at all. So finding one on a scan tells you very little on its own.

That is not a fringe position. Multiple randomized trials of arthroscopic partial meniscectomy for degenerative tears have found no meaningful advantage over structured exercise. That is why the operation is done far less than it once was.

Meniscus tear covers which tears behave differently. A true mechanical block, a locked knee, or an acute (sudden) traumatic tear in a younger patient are separate situations.

Mechanical symptoms are the discriminator

The question that matters is not whether a tear is there. It is whether the knee is doing something mechanical. Is it truly locking, giving way, or stopping short of fully straightening?

Pain and swelling alone, in a knee with degenerative change, usually reflect the arthritis, not the tear. Treating the tear then removes tissue and leaves the real problem.

When the scan is normal and it still hurts

The opposite picture is just as common and far more discouraging. A normal scan with real pain covers what to look at when imaging does not help.

Imaging shows structure. It does not show how a joint behaves under load. It does not show sensitization (a nervous system turned up too high).

The knee that gives way

True giving way, the knee buckling without warning, is different from the knee feeling unreliable. The difference matters. The first suggests a mechanical or ligament problem. The second usually reflects quadriceps inhibition, where pain shuts down the thigh muscle.

The second is far more common. It responds to strength work, not to surgery.

Swelling as a signal

A knee that swells after activity is telling you the load was more than the joint can take right now. It is the most useful feedback there is, and it is usually ignored.

We use it to tune the program. We do not treat it as a symptom to suppress.

Locking that is not locking

Many people call a knee locking when it is catching or hesitating. True locking means you cannot fully straighten it. That difference changes the plan entirely.

It is worth being exact about, because that one word drives surgical decisions.

What we offer instead

Say the diagnosis is degenerative change with a tear that happens to be there. Then the plan is loading, offloading and, where it fits, an intra-articular (inside the joint) orthobiologic. It is aimed at the joint environment, not at the tear.

The preparation for a joint is deliberately leukocyte-poor (low in white blood cells). See the distinction. That is because a leukocyte-rich preparation inside a joint tends to cause a painful flare with no benefit.

What to bring

Bring the images themselves, not the report. Bring a clear account of what the knee actually does. Not just where it hurts, but what movement brings it on and whether it ever truly locks.

In this picture, that history does more diagnostic work than the scan. It is also the part most often skipped.

The evidence, stated plainly

The strongest evidence here is about what does not work: arthroscopy for degenerative tears. Why the trials disagree.

The ceiling nobody measures

A joint that keeps swelling is often responding to more than mechanics. The body-wide picture is worth measuring before it is dismissed. The metabolic side.

The degenerative tear and the arthritic knee are usually one problem

This is the single most useful way to rethink a knee with a meniscal tear on the report and no clear injury behind it. In a knee with established cartilage loss, a horizontal or complex degenerative tear is generally part of the same degenerative process. It is not a separate event layered on top.

That matters because the two are treated differently. A traumatic tear in an otherwise healthy knee is a surgical conversation, especially one causing true mechanical locking. A degenerative tear in an arthritic knee is not. The trials of arthroscopic partial meniscectomy in that group are among the clearest negative results in orthopedics. Again and again, it did no better than placebo surgery or structured exercise at one year and beyond.

The tear is real. The pain is real. And the operation still does not help. Those three facts sit together uneasily, which is why people resist the finding. But they have held up across multiple independent trials.

So the knee is treated as an arthritic knee. That means quadriceps (thigh) and hip strength, load management, and weight where it matters. The injection options are judged on what they can really do for that joint. Removing the torn piece does not address why the joint hurts.

What Des Peres patients ask

My MRI shows a meniscus tear. Do I need surgery?

Usually not, if the symptoms are pain and swelling and not true mechanical locking: which tears matter.

What counts as a mechanical symptom?

True locking, giving way, or not being able to fully straighten the knee. Not pain or stiffness alone.

Can PRP repair a meniscus?

It does not knit a degenerative tear back together. Where it helps, it acts on the joint environment: what that means.

How far is it from Des Peres?

About nineteen minutes straight up I-270.