Doctor wearing gloves preparing to give a steroid injection in a patient’s knee.

What Are the Drawbacks of Steroid Injections for Knee Arthritis?

Medically Reviewed by Dr. Pushpinder Sivia on
Doctor wearing gloves preparing to give a steroid injection in a patient’s knee.

Getting out of bed shouldn’t require a strategy, but knee arthritis has made your morning routine a careful negotiation between movement and pain. Your recent steroid injection helped for a while, but as the familiar knee pain and stiffness return, you’re questioning whether repeated injections are truly the answer, or if they might be creating new problems.

That growing concern about repeated steroid use is well-founded. These injections may offer temporary relief, but they also carry drawbacks that can affect your knee’s future health. Learning about these limitations and exploring treatments that support both immediate comfort and long-term joint preservation could change your entire approach to managing your arthritis pain.

Why Are Steroid Injections Used for Knee Arthritis?

Steroid knee injections for arthritis have become a common treatment because they can provide rapid pain relief when other conservative treatments fall short. These corticosteroid injections work by reducing inflammation in the knee joint, which temporarily decreases pain and improves mobility.

Healthcare providers typically recommend these injections when:

  • Over-the-counter pain medications no longer provide adequate relief
  • Physical therapy hasn’t sufficiently improved symptoms
  • Patients want to avoid or delay knee replacement surgery
  • Anti-inflammatory medications cause stomach problems or other side effects

The appeal is understandable. Most patients experience noticeable pain reduction within days of receiving the injection. This quick relief can make the treatment seem like an ideal solution for managing chronic knee pain from arthritis.

However, this temporary improvement comes at a cost. Corticosteroids are known to reduce inflammation but also impair the repair mechanisms of cartilage and can inhibit matrix synthesis, which means the very treatment meant to help your knee may actually be working against its long-term health.

Short-Term Side Effects of Steroid Injections in the Knee

Even in the immediate period following treatment, side effects of steroid injections in the knee​ can create new problems for patients seeking relief. Understanding these short-term complications helps set realistic expectations for your recovery.

Pain flares and injection site reactions

Occasionally, people notice a flare-up in their joint pain within the first 24 hours after an injection. This pain after a steroid injection in the knee​ usually settles by itself within a couple of days, but it can be alarming for patients expecting immediate relief. This temporary worsening of symptoms, known as a steroid flare, affects a small percentage of patients.

Additional immediate side effects include:

  • Swelling and bruising at the injection site
  • Temporary stiffness that can last several days
  • Skin discoloration around the injection area
  • Mild bleeding into the joint space

Systemic effects

Because steroids can enter your bloodstream, even localized knee injections may cause temporary body-wide effects:

  • Elevated blood sugar levels are particularly concerning for diabetic patients
  • Increased blood pressure
  • Sleep disturbances or insomnia
  • Mood changes or irritability
  • Facial flushing

These systemic effects typically resolve within a few days but can be particularly problematic for patients with pre-existing health conditions.

Risk of infection

While rare, infection remains a serious concern with any injection procedure. Signs of joint infection include increasing pain, swelling, warmth, redness, and fever. This complication requires immediate medical attention and can lead to severe joint damage if left untreated.

Long-Term Risks and Limitations To Consider

The biggest concerns with steroid injections come from their long-term effects on the knee joint. While a single injection may be useful, repeated use over months or years can create new problems.

Accelerated cartilage damage

Research has shown that repeated steroid injections may actually accelerate cartilage loss in arthritic knees. Since osteoarthritis is already a disease of cartilage breakdown, this effect may worsen the underlying condition.

Frequency limits and diminishing relief

Most doctors recommend no more than two or three steroid injections per year in the same joint, since overuse can damage surrounding tissues and cause skin changes. Even when spaced out, the relief is usually modest and temporary, lasting only a few weeks to a few months, and tends to become less effective with each injection. This often leaves patients caught in a cycle of repeated treatments that provide less benefit while carrying the same risks.

Weakening of surrounding tissues

Steroids don’t just affect cartilage; they can also weaken the tissues that hold the knee together. Over time:

  • Tendons may tear more easily
  • Ligaments can lose their strength
  • The joint capsule may thin and become fragile
  • Muscles near the injection site may shrink (atrophy)

These changes can leave the knee less stable and more prone to injury, adding new problems beyond arthritis pain.

Bone health risks

Although uncommon, long-term steroid use can affect bone. In rare cases, a serious condition called osteonecrosis may develop. This happens when part of the bone loses its blood supply and begins to die. Osteonecrosis can be very painful and may require surgery, sometimes leading to earlier joint replacement.

Deciding if Steroid Injections Are Right for You

Given these significant drawbacks, it’s important to carefully consider whether steroid injection for knee arthritis treatment aligns with your long-term health goals. 

Questions to discuss with your healthcare provider

Before proceeding with steroid injections, consider asking:

  • What are my alternative treatment options?
  • How many injections would I likely need over the next year?
  • What evidence supports the long-term safety of repeated injections in my case?
  • Are there minimally invasive procedures that might offer longer-lasting relief?

While steroid injections may provide temporary relief, safer alternatives like Genicular Artery Embolization (GAE) offer longer-lasting pain reduction without the risks associated with repeated steroid use.

Long-Lasting Relief with GAE for Knee Pain

GAE offers patients a safe, minimally invasive solution compared to repeated steroid injections. GAE targets the small blood vessels in the knee that drive inflammation, helping to calm swelling and ease pain at its source. Unlike steroid injections, which often need to be repeated, 

A vascular specialist makes a tiny incision in the thigh and threads a thin catheter to the arteries around the knee under fluoroscopy (real-time X-ray guidance). Tiny particles are then released through the catheter to block the abnormal vessels fueling inflammation, reducing discomfort, and improving joint function.

The GAE procedure:

  • Provides pain relief lasting three to four years in most patients
  • Requires no general anesthesia or hospital stay
  • Targets the source of inflammation rather than simply suppressing it temporarily
  • Carries no risk of cartilage damage or joint deterioration

GAE can deliver longer-lasting relief with just one minimally invasive procedure.

Key Takeaways

Steroid injections can ease knee pain for a short time, but they do not cure arthritis and carry risks such as pain flares, skin changes, elevated blood sugar, infection, and long-term cartilage damage. Repeated use may weaken tissues, accelerate arthritis, and provide less relief over time.

GAE offers a minimally invasive, longer-lasting alternative without these joint-damaging effects. At Empire Vein & Vascular Specialists, our board-certified vascular specialists provide advanced, personalized care across multiple Southern California locations. We accept most insurance plans, including Medicare, PPOs, HMOs, and IEHP, and maintain the highest standards through Intersocietal Accreditation Commission (IAC) accreditation.

Our team focuses on treatments that protect long-term joint health while improving daily comfort and mobility. To explore whether GAE may be right for you, call 1-800-KNEE-CARE or visit our website to schedule a consultation.