Ultrasound-Guided
nStride Injections
NStride is an advanced therapy developed to help manage osteoarthritis (OA), a progressive joint disorder marked by cartilage deterioration, which results in pain, stiffness, and limited movement. It has emerged as a promising alternative to traditional options such as analgesics, steroid injections, or joint replacement surgery. Rather than simply alleviating symptoms, NStride aims to target the root causes of osteoarthritis by harnessing the body’s natural healing processes.
Who Can Benefit from NStride?
This treatment is mainly intended for individuals with mild to moderate knee osteoarthritis, particularly those who have not achieved sufficient relief from conservative approaches like physiotherapy, oral anti-inflammatory drugs, or hyaluronic acid injections. Although it is most commonly used for knee OA, early research suggests it may also be beneficial for other load-bearing joints, including the hip and ankle.
How NStride Works
Osteoarthritis involves ongoing inflammation and gradual cartilage breakdown, driven by an imbalance between inflammatory and anti-inflammatory factors within the joint. Key contributors to this process include cytokines such as interleukin-1 (IL-1) and tumour necrosis factor-alpha (TNF-α), which promote inflammation and cartilage damage.
NStride addresses these mechanisms by using an autologous approach—meaning it relies on the patient’s own blood. The therapy produces a concentrated serum rich in anti-inflammatory proteins, platelets, and growth factors. A crucial component, the IL-1 receptor antagonist (IL-1Ra), blocks IL-1 activity in the joint, helping to reduce inflammation and slow cartilage degradation. At the same time, growth factors support tissue repair and regeneration, providing a combined therapeutic effect.
The Procedure
NStride is a minimally invasive treatment usually carried out on an outpatient basis and involves three main steps:
Blood Draw: Around 50 mL of blood is taken from the patient, similar to a standard blood test.
Processing: The sample is placed in a centrifuge to separate and concentrate the beneficial components, a process that takes about 20–30 minutes.
Injection: The prepared serum is then injected into the affected joint, typically using ultrasound guidance for accuracy.
The procedure is generally well tolerated, and most individuals can resume normal activities soon after.
Effectiveness and Clinical Evidence
Research has shown that NStride can significantly reduce pain and improve joint function in patients with knee osteoarthritis. Studies suggest that a single injection may provide relief lasting between 24 and 36 months. For example, a 2017 study in The American Journal of Sports Medicine reported that patients receiving NStride experienced greater pain reduction and improved quality of life compared to those given placebo injections.
Real-world patient outcomes also support these findings, with many individuals reporting less dependence on pain medication and increased ability to stay physically active.
What Patients Can Expect
The treatment is quick and involves minimal discomfort. Some patients may notice mild swelling or soreness after the injection, but these effects typically resolve within a few days. The full benefits of the therapy may take several weeks to develop as inflammation decreases and healing processes are activated.
While many patients experience meaningful improvements in pain and mobility, outcomes can vary based on factors such as disease severity and individual response. Regular follow-up with a healthcare provider is recommended to track progress and assess the need for further treatment.
Conclusion
NStride represents an innovative, biologically driven strategy for managing osteoarthritis. By targeting inflammation and supporting cartilage repair, it offers the potential for lasting symptom relief and enhanced joint function. For appropriate candidates, it provides an effective and minimally invasive alternative to more aggressive treatment options.
PERSONALISED INJECTION THERAPY
Reduce your symptoms. Move pain-free. Let our team of experts guide you back to health.
Frequently Asked Questions
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NStride® APS (Autologous Protein Solution) is an innovative regenerative medicine treatment that uses components from your own blood to help manage joint pain and osteoarthritis symptoms. Following a simple blood collection, the sample is processed to concentrate anti-inflammatory proteins and naturally occurring growth factors. These are then injected into the affected joint to help reduce inflammation, support joint function, and promote a healthier environment for cartilage.
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NStride® may be suitable for patients experiencing:
Mild to moderate osteoarthritis
Ongoing joint pain, swelling, or stiffness
Knee, hip, shoulder, or ankle discomfort
Reduced mobility affecting everyday activities
Persistent symptoms despite physiotherapy, exercise programmes, or medication
At the St Albans Injection Clinic, NStride® is often considered by patients seeking a non-surgical approach to joint preservation and pain management.
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NStride® is designed to address the inflammatory processes associated with osteoarthritis. The concentrated protein solution helps reduce inflammatory molecules within the joint that contribute to pain, stiffness, and cartilage degeneration. By improving the joint environment and limiting ongoing inflammation, NStride® may help enhance mobility and support longer-term joint health.
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Yes. All NStride® injections at our St Albans clinic are performed using ultrasound guidance. This allows precise placement of the treatment into the affected joint, helping to ensure optimal accuracy and effectiveness.
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The benefits of NStride® typically develop gradually rather than immediately. Many patients begin noticing improvements within several weeks of treatment, with results often continuing to improve over time. Depending on the severity of osteoarthritis and individual lifestyle factors, symptom relief may last between 12 and 24 months or longer.
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In most cases, a single NStride® injection is sufficient for each treated joint. Some patients may benefit from additional treatment in the future, depending on their symptoms, activity levels, and clinical response.
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See Table 1 below.
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For some patients, NStride® may help postpone the need for joint replacement surgery by reducing pain and improving function. While it cannot reverse advanced osteoarthritis, it may provide meaningful symptom relief for individuals who wish to remain active and explore non-surgical treatment options before considering surgery.
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Patients commonly report:
Reduced joint pain and inflammation
Improved flexibility and range of motion
Better mobility and walking tolerance
Increased confidence during exercise and daily activities
Reduced reliance on pain medication
Results tend to develop progressively over weeks and months as the joint responds to treatment.
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NStride® may not be appropriate for individuals who:
Have an active infection
Are pregnant or breastfeeding
Take certain anticoagulant or immunosuppressive medications
Have severe end-stage osteoarthritis with significant bone-on-bone joint damage
A comprehensive consultation at St Albans Injection Clinic will determine whether NStride® APS is the most appropriate treatment for your condition and goals.
Resources
| NStride® / APS | Hyaluronic Acid | |
|---|---|---|
| Main Action | Reduces inflamation & protects cartilage | Improves lubrication & cushioning |
| Duration | Usually 12-24 months | 4-12 months |
| Target | Osteoarthritis and inflammatory pain | Stifness & mobility issues |
| Benefit | Long-term joint environment improvement | Short-term comfort and movement |
Table 1: NStride/APS vs. Hyaluronic Acid