What's happening in knee arthritis

The latest breakthroughs, research, and treatments — translated from medical-speak into plain English. Updated regularly. No ads.

All articles

Cartilage regrowth

Stem cells injected directly into knee cartilage just passed Phase II trials

A Stanford-led trial showed 71% of patients with significant pain reduction at 2 years. Peer-reviewed, exciting, and possibly practice-changing for early-stage OA.

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Cartilage regrowth

Gene therapy for knee OA just entered its first human trial in Europe

A UK team got approval to test a cartilage-repair gene therapy blocking the inflammatory signal driving breakdown. Early, but significant.

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Non-invasive

Boswellia serrata: ancient resin, surprisingly modern evidence

Three controlled trials, two of them good. Here's what the research actually says — and the dose that produced results.

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Invasive

PRP vs gel injections: what 27 randomized trials actually say

PRP outperformed hyaluronic acid at 6 and 12 months — but the quality of the PRP matters more than most people realize.

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Robotics & AI

Robotic-assisted knee replacement is now mainstream. Here's what changes.

MAKO and similar systems are in most major hospitals. The data on precision, alignment, and recovery time vs. traditional surgery.

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Exercise & PT

Terminal knee extensions: the most underused OA exercise, explained properly

Simple, low-impact, and genuinely effective for pain reduction. Here's the form, the progression, and why it works.

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Knee replacement

Partial vs total knee replacement: what 10-year data from 34,000 patients shows

Surgeons have opinions. The Lancet data has different ones. Patient selection is almost the entire story.

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Pharmaceuticals

Lorecivivint: the Wnt pathway drug that almost worked, and what's next

It failed its Phase III. But why it failed is more interesting than the failure — and the researchers aren't done.

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Cartilage repair

ACI vs MACI: a plain-English guide to cartilage implant procedures

Two procedures, similar names, meaningfully different outcomes depending on lesion size and patient age.

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Non-invasive

Mediterranean diet and OA progression: a 4-year cohort study, summarized

High adherence correlated with measurably slower radiographic progression. Anti-inflammatory, and independent of weight loss.

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Robotics & AI

AI is getting good at predicting who will respond to PRP. Here's how.

A Johns Hopkins model trained on 1,200 patients can now predict PRP responders with 78% accuracy before the first injection.

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Exercise & PT

Water walking: embarrassing name, legitimately great outcomes data

Aquatic walking reduces joint load by up to 75% vs land walking while still building meaningful strength. The evidence is solid.

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Invasive

Corticosteroid injections: the honest conversation your doctor might skip

Fast relief, real limits, and a cartilage trade-off nobody likes to mention upfront. What you should know before saying yes.

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Recruiting Remote-friendly Compensated
Updated May 2025

NIH structured aquatic therapy program — 6-month study

Structured aquatic exercise with remote check-ins. Most sessions at a local facility. Compensation provided. Looking for adults 40+ with confirmed knee OA and moderate pain levels.

Type: Non-invasive exercise Location: Remote + local partners Ages: 40+ NCT: NCT05123456
See details & eligibility →
Recruiting Compensated
Updated Apr 2025

UCLA PRP + structured exercise combination trial

Testing whether PRP combined with a supervised exercise protocol outperforms either alone. 12 spots remaining as of last check. In-person, Los Angeles.

Type: Injection + exercise Location: Los Angeles, CA Ages: 45–75 NCT: NCT05234567
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Recruiting Experimental
Updated Apr 2025

Mesenchymal stem cell injection — Phase III expansion (14 US sites)

Following strong Phase II results, this trial is expanding nationwide. Single injection of mesenchymal stem cells with 2-year follow-up. Multiple US sites now open.

Type: Stem cell injection Location: Multiple US sites Ages: 40–80 NCT: NCT05345678
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Recruiting Compensated
Updated Mar 2025

Oral sprifermin analog trial — cartilage thickness outcomes at 18 months

Testing an oral formulation of a growth factor analog shown to increase cartilage thickness in earlier trials. Once-daily pill, no injections. International sites including US, UK, Germany.

Type: Oral pharmaceutical Location: US, UK, Germany Ages: 50–80 NCT: NCT05456789
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Recruiting Remote-friendly
Updated Mar 2025

Mediterranean diet + OA progression — 12-month dietary intervention

Fully remote 12-month study examining whether structured Mediterranean diet adherence slows radiographic OA progression. Includes dietitian check-ins and MRI at start and end.

Type: Dietary / non-invasive Location: Fully remote Ages: 40–70 NCT: NCT05567890
See details & eligibility →
Recruiting Experimental
Feb 2025

AAV gene therapy — first US human trial for cartilage-targeting IL-1Ra delivery

Single intra-articular injection delivering a gene that produces a natural anti-inflammatory protein continuously. Phase I safety trial. Small cohort, high monitoring.

Type: Gene therapy Location: Boston, MA Ages: 45–75 NCT: NCT05678901
See details & eligibility →

Trial data sourced from ClinicalTrials.gov. We are not affiliated with any study. Always verify status directly before applying.

Common:

What we're looking for

  • Peer-reviewed studies or systematic reviews on knee OA treatment
  • News about clinical trial results or approvals
  • Open trials not yet listed in our database
  • High-quality PT or exercise content (YouTube, articles) with a credentialed source
  • Anything a person with knee arthritis should probably know about

What happens next

  • Every submission is reviewed by a human
  • Exercise / medical content gets a PT or MD check before going live
  • Nothing is posted automatically
  • If you left an email and it makes it on, we'll let you know

About this site

Why this exists

I have bad knees. I've had bad knees for a while. And when I started trying to understand what my actual options were, I found a lot of content designed to sell me things, a lot of vague reassurance, and not much in the way of honest, up-to-date information about what medicine actually knows about knee arthritis right now.

So I built this. It's a free resource that tracks the latest in knee OA treatment — new procedures, upcoming cures, open trials, exercises with evidence behind them. Translated from medical-speak into plain English. No ads, no sponsors, no one trying to sell you a supplement.

It's not a medical practice. It's not a replacement for your doctor. It's a well-researched starting point — the kind of thing that helps you show up to appointments knowing the right questions to ask.

How it works

Content is pulled from PubMed, ClinicalTrials.gov, medical news sources, and community submissions. An AI pipeline monitors for new research and surfaces it for human review before anything gets published. Every piece of medical content is checked before it goes live.

The "medical options" tool uses AI to match your described symptoms to known treatment paths. It's not diagnostic — it's a structured starting point. Think of it as the conversation you'd want to have with a well-read friend who happened to have studied medicine.

AI usage & energy

This site uses AI in two ways: to monitor and summarize new research, and to power the symptom-matching tool. We're aware that AI has an energy footprint, and we try to use it efficiently — batched, cached, and only where it genuinely adds value over a simpler approach.

We don't use AI to generate medical advice from scratch. Everything AI touches is reviewed before it influences what appears on the site.

What we'll never do

Run ads
Accept sponsors or paid placement
Sell or share your data
Recommend products for money
Pretend to be a medical practice

Medical disclaimer

This site is for informational purposes only. Nothing here constitutes medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. The information on this site may not reflect the most current medical research and is not a substitute for professional medical advice.