Treatments And Methodologies

See Results In
4-12 weeks

Effects Last
5* or more years

Total Costing
£2150

Described as the ‘liquid knee replacement’, Arthrosamid offers long-lasting relief for knee osteoarthritis.
Depending on the main driver of your knee condition a high proportion of the discomfort and pain from your arthritis could be coming from inflammation of the knee joint capsule and the fluid produced, not just joint wear.
Arthrosamid injections are a revolutionary hydrogel treatment designed to reduce or stop inflammation which addresses this pain source and delays wear. This is as inflammation can degrade a joint directly or indirectly through loss of strength and therefore stability.
Its unique composition ensures it remains effective long-term, providing lasting relief from joint discomfort in a single injection. Dubbed by one patient the ‘liquid knee replacement’ due to its longevity with current research showing 5 years (limited only by the length of the trial so far) and recipients having lasted much longer.
Rediscover a pain-free, active lifestyle with Arthrosamid®.
A Non-Biodegradable Hydrogel for Lasting Comfort

The injection is precisely administered into the knee joint using ultrasound guidance for maximum accuracy, ensuring the hydrogel is delivered to the exact spot so it can find its home in the capsule of the knee.
Arthrosamid® is absorbed into the capsule where, as non-biodegradable, it remains to blocks inflammation from occuring. This results in pain relief, ablity to use the knee and stay strong and thus delay wear. Unlike temporary treatments, the hydrogel stays in the joint to provide consistent relief for years.
Personalized Care for Optimal Results
Arthritis can be driven in a number of ways i.e. trauma, or a bias towards either bone degradation or inflammation of the joint. Each knee will be driven differently and at a different stage of wear.
Every patient is different with regards to such factors as to stage of life to have a replacement, ability to have a replacement, finances and applicability for the injection.
Having attended a user group meeting in Denmark at the Contura factory, having completed the procedure over 20 times and with the ability to review the knee on ultrasound Mark is an expert in patient selection and this consultation is crucial to help you consider what result you could expect from the injection.
Prophylactic antibiotics are required to be taken 1-2 hours prior to your injection. Your current symptoms and mobility levels will be recorded, if not already. The procedure itself takes approximately 30 minutes per knee and is performed under ultrasound guidance for accuracy and help draining the knee if required. A single needle is used to administer local anesthetic and 6ml of Arthrosamid.
Your knee might feel ‘tight , cushioned, full, a bit pressured’. The local anaesthetics will last for approx three hours so you will be pain free. Details of a knee rehab programme are discussed. it is recommend someone else drive you home however most patients are self sufficient.
After the procedure, you are advised to rest for 72 hours.
What will it feel like after the injection?
The body. takes time to recognise the foreign substance is not a threat and and to absorb / accept the hydrogel – So for the first 6 weeks you may experience some pain/more pain and discomfort.
This is due to:
Post injection flare: Injection-related mild to moderate pain and/or mild swelling during the first few days to weeks following the injection may occur or increased swelling of Baker’s cyst present may also occur
When will I begin to feel less pain?
It can take four to twelve weeks to feel the maximum benefit. Clinical data
shows that most patients start to feel an effect within a few weeks.
Early responder = 1-6 Weeks
Typical Responder = 6-12 weeks
Delayed Responder = 3M – 6M
Not all patients respond at the same rate and achieve the same reduction in pain
When can I go back to normal activity?
48H reduce activity/rest
First 2 weeks normal ADLs;
As with any invasive joint procedure, it is recommended to avoid strenuous activity (e.g. tennis, jogging or long walks) during the first few weeks after the injection and begin rehabilitation activities when possible.
Our team is always available to address your concerns and guide you through your recovery journey.
For safety and in case of any unforeseen circumstances, it’s recommended that someone else drive you home, although most patients are able to manage on their own.
The Benefits You Can Expect with Arthrosamid Injections in Chester:

Say goodbye to multiple injections and constant treatments. One single Arthrosamid® injection delivers long-term relief, reducing the need for frequent visits.

Unlike surgery, Arthrosamid® requires no recovery time. The injection is minimally invasive, and patients typically return to their regular activities immediately after the procedure.

Clinical studies show that Arthrosamid® significantly reduces pain within the first four weeks, with results lasting 5 years. Patients experience sustained improvement in joint function and mobility.

Arthrosamid® has been rigorously tested for safety and biocompatibility. Its hydrogel formulation integrates seamlessly with the body’s tissues, ensuring a safe and reliable treatment with minimal risk of adverse reactions.

To ensure precise delivery, the injection is performed using ultrasound technology, allowing for pinpoint accuracy and greater safety in targeting the affected area.
Breaking Down Each Step of the Process

Long-Lasting Pain Relief
Ultrasound-Guided Precision

Minimally Invasive Treatment
Take the First Step Toward Pain-Free Living
To learn more or schedule an appointment, feel free to book a free 30-minute consultation or book your injection today. Our team is here to guide you through the process and provide personalized care that meets your needs.

Clinical trials validate Arthrosamid’s effectiveness:


Over 80% of patients report noticeable improvements after one year. The younger and less worn the better the result overall.

WOMAC pain scores show results at twice the minimally clinically significant difference (MCID) showing strong meaningful change to a patient

These results are proven up to 5 years with this being the length of the trial, with many patients already having many more years than this.

Take the First Step Toward Pain-Free Living
After Arthrosamid injection treatment at Chester, we recommend avoiding strenuous activities and resting the knee for approx 72 hours to minimise the risk of inflammation or flare-up following your procedure. A gradual return to previous activity level is then advised
Physiotherapy is often recommended after Arthrosamid treatment to optimise functional recovery and reduce the risk of ongoing knee symptoms.
Typically, the benefit from the injection begins around four weeks after the injection, majority of benefit observed around the 12-week mark full and full potential can take at 6 months.
To get the most out of your injection follow the customised rehab programmes provided:
The Ideal Candidates for Arthrosamid® ‘the liquid knee replacement’ Treatment
Arthrosamid® is designed for individuals dealing with specific types of knee osteoarthritis and offers relief for various patient profiles, including:

Chronic Knee Pain Sufferers
If you experience constant knee pain that affects your daily activities, Arthrosamid® can help restore comfort and mobility, allowing you to regain control of your life.

Seeking Minimally Invasive Treatments
If you’re looking to prolong the life of your knee and avoid surgery, Arthrosamid® offers a simple, single-injection solution that doesn’t require complex procedures or long recovery periods. ‘

Patients Looking for Long-Term Pain Relief
For individuals who want a treatment that lasts, Arthrosamid® has been proven to reduce pain over the long term, with effects lasting 5 years.

People Unsuitable for Surgery
If surgery is not an option due to age, weight, or other medical factors, Arthrosamid® offers a safe alternative to improve knee function and alleviate pain.
Osteoarthritis is not one disease but a number of processes and can be driven differently for each individual i.e. Bone driven, inflammatory driven or post injury. Patient selection is key so expectations results can be met. Visit Rebound Physio and ask the experts whether its right for you.
A Long-Lasting Solution for Knee Osteoarthritis
Arthrosamid injections provide long-lasting relief due to the non-degradable nature of the hydrogel. Most patients feel a noticeable reduction in pain within 4 weeks, with pain relief maintained for up to lasts 5 or more years. Unlike steroid injections, which are commonly used for short-term symptom control, Arthrosamid® offers a more sustainable alternative to temporary pain treatments, helping improve quality of life without the need for frequent repeat injections. If you’re still unsure, you can check the Arthrosamid injection guide for more information.

Affordable and Effective Treatment for Knee Pain
Arthrosamid® Ultrasound Guided Injection
£2150
This price includes:
Initial 30mins consultation
Prophylactic antibiotics provided
Rehab program to follow
A physio session to optimism post injection
6 month review

See How Arthrosamid® Has Helped Others Like You
“There was a little soreness and stiffness in the knees for the first 24 hours, but considerably less than what I expected. My knee joints feel a lot better, as if cushioned. You did a really great job. Much appreciated.”
– Glenn Davis, Accounting Lecturer & Avid Cyclist

Improved Accuracy and Outcomes for Joint Injections
To ensure the most precise and effective treatment, we use Point-of-Care Ultrasound (POCUS). This advanced diagnostic tool helps guide injections to the correct location within the joint, optimizing accuracy and improving results.

Joints like the shoulder bursae or hip require precision to ensure the injection hits the target. Ultrasound ensures the needle is accurately placed.

Some joints and tendons, such as the hip joint or hamstring tendon, are too deep to reach without guidance.

POCUS helps to distinguish between conditions like Achilles tendinopathy and retrocalcaneal bursitis, ensuring the correct treatment is provided.
Using POCUS enhances the effectiveness of your treatment, allowing for better outcomes and a more comfortable experience.
Arthrosamid is an innovative, non-biodegradable hydrogel injection designed to provide long-lasting pain relief for knee osteoarthritis. It works by integrating into the synovial tissue, reducing inflammation in the joint helping it to be as pain free as possible and stay strong and stable delaying wear.
The gel absorbs into the joint capsule and the magic bit is the make up of the gel is similar to the bodies cells in that area so the body doesn’t reject, allows it to sit one cell layer deep, and being non-biodegradable it stays there.
It then helps return the thickness and regularity to the knee capsule lining and prevents inflammatory cells communicating all of this leads to less inflammation in the joint. This helps to restore mobility and provide significant, long-lasting pain relief for osteoarthritis sufferers.
Clinical studies have demonstrated that Arthrosamid provides substantial pain reduction and improved knee function for osteoarthritis patients. Unlike steroid injections, which offer temporary relief, Arthrosamid is designed to provide long-term benefits with fewer side effects.
Arthrosamid is ideal for individuals with inflammatory led knee osteoarthritis who are looking for long-term pain relief without surgery. There are many factors that will determine your suitability such as your age, grade of arthritis, applicability to surgery. Mark at Rebound physio has been part of user group meetings in Denmark at the Contura factory and is a specialist in patient selection and can guide you as to how you might benefit.
Arthrosamid injections are provided by specialists in musculoskeletal medicine. You will typically require an initial assessment to determine your suitability before receiving the injection at a clinic offering ultrasound-guided procedures.
Most patients experience little to no downtime after the injection. You may feel slight discomfort for a few days, but normal activities can typically be resumed shortly. Full pain relief benefits are often noticeable within weeks.
Arthrosamid is well-tolerated, but some patients may experience mild swelling, stiffness, or temporary discomfort at the injection site. Serious side effects are rare, and no allergic reactions have been recorded.
Studies suggest that a single Arthrosamid injection can provide pain relief for up to 5 years, making it one of the longest-lasting injectable treatments for knee osteoarthritis.
Patients can slowly resume their normal low impact daily activities approximately 72 hours post injection.
However with any invasive joint procedure, it is recommended to avoid strenuous activity (e.g. tennis, jogging or long walks) during the first few weeks after the injection and begin rehabilitation activities when possible.
The Clear Choice for Your Recovery

We understand that no two injuries are the same. That's why our expert team creates individualized treatment plans based on your specific needs, ensuring a personalized approach to recovery.

Our highly skilled physiotherapists bring years of experience to the table. Whether it’s sports rehab or chronic pain management, our team has the expertise to help you recover efficiently.

We employ advanced diagnostic tools like ultrasound imaging and gait analysis to precisely identify problem areas and track progress throughout your recovery.

Our treatments lead to faster, longer-lasting recoveries, with many clients experiencing significant improvement in fewer sessions. Client success stories and testimonials reflect our commitment to quality care.
What Our Clients Are Saying
EXCELLENT Based on 10 reviews Posted on Google tom gribbenTrustindex verifies that the original source of the review is Google. Brilliant physio . Helped right away with my knee and Achilles pain . Very professional and friendly and very good valuePosted on Google Alessio MottaTrustindex verifies that the original source of the review is Google. Mark provides a remarkable blend of professional expertise and genuine kindness. He is prepared and very good at explaining complex clinical conditions in a clear, accessible way that ensures you feel fully informed. The dry needle treatments that I have received were performed well and they helped to soothe my condition.Posted on Google Sandra BarlowTrustindex verifies that the original source of the review is Google. Thank you so much Mark after over 12 months of increasingly painfull suffering hinderd by frustrating and incorrect diagnosis from our sadly declining NHS. Thanks to your rapid and very professional assessment of my condition and proposals for remediation followed by the subsequent treatment has given me instant pain relief and returned mobility from a problem that was becoming incredibly difficult for me bare. The treatment was something I'd never heard of and tbh I was very sceptical but I can say whole heartedly this is amazing and I would highly recommend it and Mark in the way he explained everything to me.Posted on Google William MeredithTrustindex verifies that the original source of the review is Google. My meeting with Mark was very positive and a way forward to reduce my pain has been agreed. I came away reassured and relievedPosted on Google Alice CutteridgeTrustindex verifies that the original source of the review is Google. I am extremely grateful to Mark for helping me with shoulder pain, I have massively improved with his help.Posted on Google Karen GouldenTrustindex verifies that the original source of the review is Google. On recommendation, I made an appointment with Mark regarding shoulder pain/rotator cuff tear. After an ultrasound scan & steroid injections with physio, like magic in two appointments, I felt 90% cured. It is such a relief to be able to rely on Mark after months of pain.Posted on Google Ian EytonTrustindex verifies that the original source of the review is Google. For the last 5 years I’ve been struggling with knee pain. After 3 sessions with Mark my knee pain has completely disappeared and I’m back lifting weights like I was before my knee pain appeared. Would highly recommend.Posted on Google dave smithTrustindex verifies that the original source of the review is Google. Mark took time to make original diagnosis for which treatment has always been helpful. Assessments thorough and clear advice on home exercises. Calm confident manner. Strongly recommend.Posted on Google Alasdair CTrustindex verifies that the original source of the review is Google. Mark was brilliant at tackling my long standing shin splints over 3 sessions. An NHS doctor had told that I needed to give up football or cope with the pain if I wanted to keep on playing. Now I'm able to play again without the consistent pain that I was previously told would continue with football. Mark also gave me a comprehensive set of exercises to keep my recovery up Thanks so much Mark!Posted on Google A KassTrustindex verifies that the original source of the review is Google. Excellent service. Friendly and informative. Was apprehensive before booking as never booked a physio appointment before but was made to feel comfortable and after a few sessions the transformation was incredible.
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At Rebound Physiotherapy, our commitment to providing top-quality care is reflected in the numerous awards and certifications we’ve earned over the years. From industry accolades to professional certifications, these recognitions highlight our dedication to innovation, expertise, and patient success.

Meet Our Expert
Mark Boundy

After completing a Biology BSc, my journey in physiotherapy began in 2004 at King’s College, London. I spent eight years in the NHS, where I saw how long waiting lists and short appointments hindered effective rehabilitation. This led me to pursue an MSc in Manual Therapy in 2015, becoming a member of the MACP.
I moved into private practice at Oxford Sports Physio & Pilates, where I helped rehabilitate high-level athletes, including GB rowers and Oxford University sports teams. Today, I’m an expert generalist with a passion for treating a variety of musculoskeletal issues.
While I don’t specialize in one area, I have a keen interest in using MRI machine for diagnostics and injection therapy, which allows me to offer precise, effective treatments. Combined with medication prescription, I provide a comprehensive range of musculoskeletal care.
MSc, BSc (Hons), MMACP,
MSOMM
Non-medical Prescriber & Ultrasound Guided Injector
Transform Your Life with Rebound Physiotherapy
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Now It’s Your Turn!
At Rebound Physiotherapy, we’ve transformed the lives of countless clients, guiding them from pain to recovery and enhanced well-being. Now it’s your turn to experience the benefits of expert physiotherapy. Our dedicated team is here to support you on your journey to better health.