Is an ultrasound-guided injection more effective than a blind injection?

Yes. Multiple studies demonstrate that ultrasound-guided injections are significantly more accurate and produce better clinical outcomes than landmark-guided (blind) injections. Accuracy rates for ultrasound-guided knee injections exceed 95% compared to approximately 70–80% for blind injections.

Is the injection painful?

Most patients experience minimal discomfort. Local anaesthetic is applied to the skin before the injection. You may feel pressure as the needle enters the joint, but significant pain is uncommon.

How long does the effect last?

Corticosteroid injections typically provide relief for 4–12 weeks. Hyaluronic acid injections provide more gradual but longer-lasting relief over 3–6 months. Individual responses vary.

Can I drive after the injection?

Most patients can drive after the procedure. However, if you have had sedation or feel unwell, please arrange alternative transport.

How many injections can I have?

NICE guidelines recommend a maximum of 3 corticosteroid injections per joint per year. Your sonographer will advise on the appropriate interval between injections.

Do I need a GP referral?

No referral is needed. You can book directly online or by telephone.

HCPC Registered— All sonographers

CQC Compliant— Regulated clinic

Same-Day Available— Mon – Sat

Written Report— Within 24 hours

HCPC Registered

CQC Compliant

Same-Day Available

Written Report

Injections

Ultrasound-Guided Knee Injection

Precise corticosteroid or hyaluronic acid injection into the knee joint under real-time ultrasound guidance for accurate placement and maximum therapeutic benefit.

30 minutes

Same-day appointments

Marylebone, London W1

HCPC RegisteredCQC CompliantSame-Day AvailableWritten Report IncludedUltrasound-Guided Therapy

£295

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4.9/5 from 600+ patients

HCPC-registered sonographers

Written report within 24 hours

Same-day appointments available

CQC-compliant clinic

Understanding Your Situation

When Knee Pain Stops You Living Your Life

Knee pain from osteoarthritis, bursitis, or inflammatory conditions can be debilitating — limiting your ability to walk, climb stairs, exercise, and enjoy daily activities. An ultrasound-guided knee injection delivers anti-inflammatory medication or joint lubricant precisely into the knee joint, providing targeted pain relief that blind injections simply cannot match. Our specialist musculoskeletal sonographers use real-time imaging to ensure every injection is placed with pinpoint accuracy. At our Marylebone clinic on Weymouth Street, same-day appointments are available and no GP referral is needed.

Clinical Overview

What is an Ultrasound-Guided Knee Injection?

An ultrasound-guided knee injection uses real-time ultrasound imaging to guide a needle precisely into the knee joint space or surrounding structures. This ensures the medication is delivered exactly where it is needed, significantly improving efficacy compared to landmark-guided (blind) injections. Research published in the British Journal of General Practice demonstrates that ultrasound-guided knee injections are significantly more accurate and produce better clinical outcomes than blind injections. The procedure is performed by our specialist musculoskeletal sonographers.

Is This Scan Right for You?

Who Should Book This Scan?

Those with knee osteoarthritis causing persistent pain and stiffness

Patients with inflammatory arthritis (rheumatoid, psoriatic) affecting the knee

Those with knee bursitis (prepatellar or infrapatellar bursitis)

Patients with a knee joint effusion (fluid on the knee)

Those who have not responded adequately to physiotherapy or oral anti-inflammatories

Patients requiring joint aspiration combined with injection

Diagnostic Scope

What This Scan Can Detect

Joint Effusion Assessment

Before injection, the knee joint is scanned to assess the presence and volume of joint fluid, which may be aspirated before the injection.

Accurate Needle Placement

Real-time ultrasound guidance ensures the needle tip is visualised entering the joint space, confirming accurate placement before injection.

Bursa Identification

Inflamed bursae are identified and targeted directly, ensuring the medication reaches the correct structure.

Post-Injection Confirmation

The spread of injectate within the joint is observed in real-time, confirming successful delivery.

Your Appointment

What Happens During Your Scan

Pre-injection assessment

Your sonographer performs a diagnostic scan of the knee to assess the joint, identify any effusion, and plan the injection approach.

Skin preparation

The injection site is cleaned with antiseptic solution and a sterile field is established.

Local anaesthetic

A small amount of local anaesthetic is injected into the skin to minimise discomfort.

Guided injection

Under real-time ultrasound guidance, the needle is advanced into the knee joint and the medication is injected under direct visualisation.

Post-procedure advice

You will receive written aftercare instructions and advice on expected response and activity modification.

Before Your Appointment

How to Prepare for Your Scan

1
No special preparation is required
2
Wear loose clothing that allows easy access to the knee
3
Avoid taking anti-inflammatory medications (ibuprofen, naproxen) for 48 hours before the injection if possible
4
Arrange transport home if you prefer not to drive immediately after
5
Allow 45 minutes for your appointment including the pre-injection assessment

After Your Scan

What to Expect After Your Knee Injection

Most patients experience some improvement within 1–2 weeks of a corticosteroid injection, with maximum benefit at 4–6 weeks. Hyaluronic acid injections typically provide more gradual but longer-lasting relief over 3–6 months. A written procedure report is provided before you leave. Your sonographer will advise on activity modification and the expected timeline for improvement.

Why Private?