Knee osteoarthritis (OA) is one of the most common causes of long-term knee pain in adults, affecting mobility, confidence, and overall quality of life. It can range from very early, mild changes to advanced degeneration, and the earlier it’s identified, the more proactive you can be in preserving knee health and prolonging the life of the joint.
Unfortunately, many people are still told to “wait for it to get worse” before receiving help, leaving them struggling unnecessarily for years until surgery is finally considered.
At the Private Injection Clinic, we take a very different approach. Our mission is to preserve and prolong the life of your knee, reduce pain naturally, and avoid or delay knee replacement surgery for as long as possible.
While NHS options are often limited to steroid injections or surgery, we provide a comprehensive range of advanced, evidence-based knee injections designed to reduce inflammation, improve lubrication, promote healing, and enhance long-term joint health.
With same-day X-rays and access to a high-quality, low-cost MRI facility nearby, we offer rapid diagnosis and same-day treatment, ultimately far faster than typical NHS pathways.
If you’re looking for fast access, accurate diagnosis, and a wide choice of knee osteoarthritis treatments, this guide covers everything we can do to help.
What Causes Knee Osteoarthritis?
Knee osteoarthritis occurs when the protective cartilage inside the joint gradually breaks down. This leads to:
- Pain
- Stiffness
- Swelling
- Grinding or clicking
- Reduced mobility
Without early intervention, the condition typically worsens over time. That’s why timely assessment and treatment is crucial to prolong the life of the knee and avoid escalation toward surgery.
Our Full Range of Knee Osteoarthritis Treatments
Below is a breakdown of each treatment we offer to help preserve your knee joint.
- Steroid Injections for Knee Osteoarthritis
Benefits
- Rapid relief from inflammation and swelling
- Ideal for acute flare-ups
- Cost-effective
- Helps restore mobility quickly
Limitations
- Short-term solution (6–12 weeks) – will not preserve longevity.
- Cannot be used repeatedly long-term
- Does not provide structural joint support
Best for:
Short-term relief and flare management while planning longer-term treatments.
2. Hyaluronic Acid (HA) Injections for Knee Pain
Also known as viscosupplementation, hyaluronic acid injections add lubrication back into the knee joint.
Benefits
- Improves cushioning, shock absorption, and lubrication
- Suitable for mild to moderate arthritis
- Long-lasting relief (6–12 months)
- Helps delay knee replacement and can slow down OA.
Limitations
- Not as effective for very severe OA
- Gradual rather than instant results
Best for:
Patients seeking non-steroid, longer-lasting relief from knee pain.
3. Prolozone Therapy for Knee Osteoarthritis
Prolozone Therapy combines a nutrient solution with medical ozone to stimulate tissue repair.
Benefits
- Encourages natural healing and regeneration
- Reduces inflammation without steroids
- Improves ligament stability
- Suitable for repeated use
Limitations
- Evidence base is growing but still developing
- Works gradually and usually requires a course
Best for:
People who prefer a natural, regenerative approach to treating knee osteoarthritis.
4. NStride APS (Autologous Protein Solution)
NStride® is a cutting-edge biologic treatment that uses your own blood proteins to reduce inflammation and slow cartilage degeneration.
Benefits
- Long-lasting results (12–24 months)
- Reduces inflammation at a cellular level
- May slow progression of knee osteoarthritis
- 100% natural (uses your own blood)
Limitations
- Higher initial cost
- Not suitable for all medical conditions
- Requires specialist preparation
Best for:
Active individuals and those wanting a natural biologic alternative to surgery.
5. Arthrosamid Hydrogel Injection
Arthrosamid® is one of the most advanced modern treatments for knee osteoarthritis. It is a long-lasting hydrogel that becomes part of the joint lining, providing cushioning and pain relief for years.
Benefits
- Very long-lasting (often 3+ years)
- Used for all severities of OA
- Improves knee function and reduces daily pain
- Excellent option for avoiding or delaying knee replacement
- Non-biologic and highly stable
Limitations
- Premium treatment
- Not suitable for patients with active joint infection
- Requires expert administration
Best for:
Patients seeking long-term, surgery-sparing treatment for knee osteoarthritis.
Why Choose Private Injection Clinic Over NHS Pathways?
More treatment options
Unlike the NHS, which typically offers steroids or surgery, we provide a wide range of joint-preserving therapies.
Rapid diagnosis
Avoid long NHS waiting lists. We offer:
- Same-day X-rays: Helps diagnose osteoarthritis, joint space narrowing, bone spurs, and structural changes.
- Fast access to low-cost MRI scanning, provided at a nearby partner facility, allowing us to assess:
- cartilage damage
- meniscal tears
- ligament injuries
- bone swelling
- soft tissue issues
This means you can often receive assessment, imaging, diagnosis, and treatment on the same day – something rarely possible through NHS routes.
Personalised treatment plans
Every knee is different. We tailor treatment based on your:
- symptoms
- X-ray findings
- MRI results
- activity level
- lifestyle goals
Specialists in knee injection therapy
Our clinicians focus specifically on non-surgical musculoskeletal treatments. This ensures accuracy, safety, and excellent outcomes. At our clinic, you’ll be cared for by clinicians with 18 years of specialist experience in musculoskeletal medicine and a track record of performing thousands of successful injection procedures, not trainees or general practitioners. Every practitioner is dual-qualified, holding a Masters-level Postgraduate Diploma (PGDip) in Diagnostic Ultrasound and Ultrasound-Guided Injections, ensuring exceptional accuracy and safety in every treatment.
We bring together high-level expertise with an accessible, supportive, and patient-focused approach.
This means you can feel confident knowing your care is always provided by an expert dedicated to achieving the best outcome for your knee.
Goal: avoid or delay knee surgery
Most patients come to us specifically to avoid knee replacement. Our therapies are designed to protect and preserve knee cartilage, reduce pain, and extend the life of the joint.
How We Help You Avoid Knee Replacement Surgery
Knee replacement is sometimes necessary, but not nearly as often as it’s recommended. With the right combination of targeted injections, strengthening, lifestyle guidance, and early imaging, many patients can avoid surgery for years.
Our joint-preservation strategy includes:
- Accurate imaging
- Reducing inflammation
- Improving lubrication
- Enhancing joint stability
- Slowing cartilage breakdown
- Offering long-lasting regenerative treatments
This holistic approach gives you the best chance of keeping your natural knee for as long as possible.
A Complete, Modern Approach to Knee Treatment
At Private Injection Clinics, our goal is to give you more choices, faster access, and better long-term outcomes than traditional pathways. With advanced treatments like Arthrosamid, NStride, and Prolozone – combined with fast imaging and expert care – we help you preserve knee function, reduce pain, and delay the need for surgery.
See our treatment pages on our website for more information on each option we have available to preserve your knee. If you’re living with knee pain or have been told to “wait for surgery,” you don’t need to suffer through long delays.
Private Injection Clinics are based on the coast in Leigh on Sea, and in Colchester, Essex – perfect for patients in Essex, Kent, London, and surrounding areas.