Ultrasound guidance lets the doctor see the exact structure being injected, making the injection more accurate and effective. But the result still depends on the skill and experience of the person holding the needle. So what sets a specialist apart, and why does injection expertise matter?
A teacher of ultrasound-guided injection
Dr Masci is a leading contributor in this specialised field. He teaches the technique widely, speaking regularly and contributing to lectures and educational programmes across the UK and Europe. He partners with SonoSkills to produce online learning for sports doctors and other professionals, and is developing an advanced ultrasound-guided injection course with SonoSkills. Teaching the technique to other doctors demands a deeper command of it than performing it alone — you have to understand exactly why each step works.
A researcher in injection therapy
Dr Masci doesn’t just perform injections — he researches them. He has published over 20 peer-reviewed papers, including work on the effectiveness of ultrasound-guided injections in tendonitis. This research background means the injections he offers are grounded in current evidence — knowing which injections work, for which conditions, and which don’t.
An experienced injection clinician
In private practice, Dr Masci performs a wide range of ultrasound-guided injections, having carried out thousands over his career. These include:
- Cortisone — for arthritis and tendonitis
- Hyaluronic acid — including Durolane, Synvisc, and Ostenil
- Platelet-rich plasma (PRP) — including the single-shot Arthrex ACP Max
- Arthrosamid — the non-degradable hydrogel for knee arthritis
He treats many tendon problems this way — Achilles tendonitis, peroneal tendonitis, tennis elbow, patellar tendinopathy, and shoulder pain. He also performs advanced ultrasound-guided procedures that few clinicians offer:
- Hydrodistension for frozen shoulder
- Achilles and patellar tendon scraping
- Nerve hydrodissection
- The Tenex procedure for tendons
Why injection expertise matters to you
An ultrasound-guided injection is only as good as the hands performing it. Accurate placement determines whether the drug reaches its target — and missing the target both reduces the effect and raises the risk of side effects. A specialist who teaches the technique, researches the evidence, and has performed thousands of injections gives you the best chance of a safe, effective result. Before any injection, it’s worth asking these questions about ultrasound guidance.
Frequently asked questions about injection expertise.
Why does the person performing the injection matter if ultrasound is used?
Ultrasound shows the target, but accurately steering the needle to it — especially for deep or small structures — takes training and experience. Guidance and skill work together; one without the other isn’t enough.
What makes Dr Masci a specialist in ultrasound-guided injections?
Three things: he teaches the technique to other doctors (through SonoSkills), he researches injection effectiveness (20+ peer-reviewed papers), and he has performed thousands of guided injections in clinical practice.
What advanced injections does Dr Masci perform?
Beyond standard cortisone, hyaluronic acid, PRP, and Arthrosamid, he performs frozen-shoulder hydrodistension, Achilles and patellar tendon scraping, nerve hydrodissection, and the Tenex procedure — advanced techniques that need specific expertise.
Where can I have an injection with Dr Masci?
Across his London clinics, a one-stop visit assessment, diagnostic ultrasound, and injection in one appointment, with Chelsea being the most cost-effective location.
Ultrasound guidance improves injection accuracy — but the skill behind the needle still matters. As a teacher, researcher, and experienced clinician in ultrasound-guided injection, Dr Masci offers expertise across the full range of standard and advanced injections.
To book a one-stop ultrasound-guided injection in London, contact the team here or call +44 (0) 203 488 0350.





