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Joint Injections

Targeted relief for a painful knee — discover the options, procedure and recovery for knee joint injections.

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Overview

Injection options range from traditional to biological. Steroid injections offer effective pain relief but have fallen out of favour for routine use, as they can accelerate cartilage breakdown and bring forward the need for joint replacement — though they still have a role in severe OA where surgery carries high risk. Hyaluronic acid injections provide lubrication and cushioning, offering reliable symptomatic relief without altering disease progression. PRP (platelet-rich plasma) has emerged as the leading joint-preservation option, using the patient's own concentrated platelets to reduce inflammation, support cartilage health, and slow OA progression — proving more effective than both steroid and hyaluronic acid injections in early-to-moderate disease (Grade I–III), though it isn't suitable once cartilage loss is severe (Grade IV). Arthrosamid, a single-dose, non-biodegradable hydrogel injection, is a newer addition to the options available — integrating into the joint's synovial tissue to reduce pain.

The Procedures

Steroid Injections

The orthopaedic community has been using steroid injections for decades, and this still has a role to play. However, steroids have been shown to upregulate MMPs and their action, causing them to work harder and break down the cartilage even faster. This then in fact accelerates OA and results in joint replacement surgery much earlier than necessary.

Mr Barkatali tries to avoid the use of steroid injections where possible. However, steroids can be effective for pain relief in severe OA and inflammatory conditions when joint replacement surgery may be too high risk.

Hyaluronic acid

Hyaluronic acid injections have been used for many decades to help treat joint and musculoskeletal problems.

Hyaluronic acid injections are an effective method of treating knee joint pain and OA. These work by providing a lubricant and cushioning effect in the knee joint as well nourishing the cartilage.

Types available:

  • Ostenil
  • Ostenil Plus
  • Durolane
  • Synvisc / Synvisc one

Cingal

Cingal offers a considered option for patients with painful knee osteoarthritis. Cingal is a fast-acting viscosupplement injection therapy, combining an established corticosteroid with a high-concentration, cross-linked hyaluronic acid in a single treatment. It works within the first week for most patients, sometimes within 48 hours, and its effects can continue for up to six months, according to the strongest level of clinical evidence available. By calming inflammation quickly, Cingal clears the way for the hyaluronic acid to work more effectively, helping patients return to physiotherapy and an active lifestyle sooner. It's particularly suited to athletes and active people needing fast relief, as well as those who prefer a single-visit treatment without repeat top-up injections. Cingal can also be a valuable option for patients with more severe osteoarthritis who have been advised towards knee replacement, helping to safely extend time with their natural joint while staying active.

PRP

PRP has emerged as a leading joint-preservation treatment for osteoarthritis, backed by a growing body of clinical evidence. These platelets contain growth factors that stimulate healing, reduce inflammation, and improve function — and, crucially, help slow the progression of OA by downregulating the enzymes (MMPs) responsible for cartilage breakdown, while supporting healthier chondrocyte function and cartilage matrix production. Research shows PRP to be more effective than both steroid and hyaluronic acid injections, and it's generally considered safe, with rare reported side effects.

PRP is best suited to early, mild, and moderate OA (Grade I–III), where it can meaningfully delay or even prevent the need for major surgery — but it isn't effective once joint changes become severe (Grade IV). Beyond OA, PRP is also used to treat patellar and quads tendinitis, ligament sprains, and muscle strains. That said, it isn't a guaranteed fix for everyone — results vary, and several treatments may be needed to see meaningful improvement — so it's worth discussing your individual case with your surgeon to determine whether PRP is the right option for you.

What to expect on the day

Treatment consists of a course of three injections spaced over six weeks, ideally around two weeks apart, though timing can be adjusted to fit around other commitments. Each session takes place in the clinic: once you're confirmed eligible for treatment and have discussed the risks and benefits as part of the consent process, a small blood sample is taken from your arm. This is spun in a specialised centrifuge to separate and concentrate the platelets, which are then injected directly into the affected joint or around the painful tendon.

Outcomes

  • 20+ years of experience
  • 5000+ operations
  • <1% complication rate

Healing Begins Here

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At The Knee Clinic, we specialize in innovative solutions for knee-related issues. Our dedicated team is committed to providing personalized care that addresses your unique needs, ensuring you receive the best possible outcomes

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<1%

Complications rate

5000+

Operations

20+

Years of Experience

Customer testimonials

What our patients say...

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“Since the PRP in both knees last year I have had super amazing results. 

‍

Back running again and been able to dance (a new found hobby) to replace doing iron man’s. I am sure it’s nice for Bilal to hear this news - and ever grateful for his expertise in NOT going down the surgery route. It seems patience and mindfulness and rehab and PRP was indeed the correct protocol for me”

‍

Shelly, Course of PRP in 2025, aged 61.

Frequently asked questions

Platelet-Rich Plasma (PRP) is a treatment that uses a concentrated preparation of your own blood platelets to promote healing and reduce inflammation in the knee. Platelets contain growth factors that play a key role in the body’s natural repair process, and injecting a concentrated dose directly into the affected area aims to stimulate healing and improve joint comfort.

PRP injections are typically carried out in a treatment room by Mr Barkatali. A small sample of your blood is drawn and processed in a centrifuge, which separates and concentrates the platelets from the rest of the blood. This concentrated platelet solution is then injected directly into the site of injury or pain within the knee.

  • No downtime — as PRP is delivered by injection, there’s no recovery period, and you can return to your daily activities straight afterwards.
  • A natural option — PRP is derived from your own blood and isn’t chemically treated before being injected.
  • Less invasive — by promoting the body’s own healing response, PRP may help prolong joint mobility and potentially reduce or delay the need for more invasive treatment, such as surgery.
  • Low risk — because PRP uses your own cells, there’s no risk of allergic reaction or disease transmission associated with foreign substances.

PRP is a biological treatment using your own blood, with no major known side effects. As with any injection procedure, there are still general risks to be aware of, including mild pain, swelling, or bruising at the injection site, and a very small risk of infection. Mr Barkatali will discuss these with you before proceeding.

Ultrasound guidance is used to ensure the injection is delivered with pinpoint accuracy to the exact area of the knee causing symptoms — this is particularly valuable where the target area is small, deep, or difficult to localise precisely by feel alone, such as a specific ligament, tendon, or focal area of joint damage. Mr Barkatali will advise if ultrasound guidance is recommended for your particular injection.

You’ll be able to go about your normal daily activities straight after the injection and can drive home from your appointment if needed. However, it’s best to avoid alcohol and any strenuous activity for around a week following treatment, to give the platelets the best chance to take effect undisturbed.

Unfortunately, PRP therapy isn’t appropriate for everyone. You may be advised against PRP if you:

  • Are taking anti-platelet medication (such as Clopidogrel, Aspirin, Dipyridamole, or Ticagrelor)
  • Have an active infection, sepsis, or are currently on antibiotic treatment
  • Are undergoing chemotherapy or radiotherapy for cancer treatment
  • Have poor general medical health, or an inflammatory joint condition such as Rheumatoid Arthritis

Mr Barkatali will review your medical history to confirm whether PRP is a suitable option for you.

This varies depending on the individual and the condition being treated. Some patients notice benefit from a single injection, while others may be advised to have a short course — typically 3 injections, spaced 2–3 weeks apart — for optimal effect. Mr Barkatali will recommend a treatment plan tailored to you.

PRP works by stimulating your body’s own healing response, so benefits tend to build gradually rather than appearing immediately. Most patients begin to notice improvement within a few weeks, with effects often continuing to develop over 2–3 months as the healing process progresses.

This varies from patient to patient and depends on the underlying condition being treated. Some patients experience relief lasting several months to a year or more, while others may benefit from repeat treatment over time. Mr Barkatali can discuss realistic expectations based on your specific diagnosis.

You may feel some discomfort during the injection itself, and mild soreness, swelling, or bruising at the injection site is common for a day or two afterwards. This is generally well tolerated and settles quickly with simple measures such as ice and paracetamol if needed.

PRP is commonly used to help manage knee osteoarthritis, tendon injuries (such as patellar tendinopathy), and certain soft tissue injuries, where promoting a natural healing response may improve pain and function. Mr Barkatali will advise whether PRP is an appropriate option for your specific condition.

Steroid injections work by reducing inflammation and can provide fast, effective short-term pain relief, but their benefit often diminishes over time and repeated use can potentially affect joint tissue quality. PRP takes a different approach, aiming to stimulate the body’s own natural healing and repair processes, with effects that tend to build gradually and may offer more sustained benefit for certain conditions. Mr Barkatali can advise which option — or combination of options — best suits your individual circumstances.

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