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Dermal Fillers – ‘The Cannula Technique’

When injecting dermal fillers in the face, the most common technique is to do so using a traditional sharp needle to insert the filler under the skin, which has been the protocol for surgeons to follow for several years.

However, in recent years the new innovative technique of using a cannula as opposed to a needle for specific procedures is one that Dr Somji, board certified surgeon and KOL, has adopted for many advanced reasons, mainly being safety.

What is a cannula?

A cannula is simply a blunt needle. It is usually preferred to a sharp needle for the most important aspect of safety. Due to a cannula needle being blunt, it’s unable to cause damage to the deep tissue within the skin, like a sharp needle would.

Sharp needles are more able to pass into or through a vein or artery which can be damaging and have severe side effects. Sharp needles passing through the skin can cause bruising, swelling, and in more severe cases accidental intravascular injection (injection of filler into an artery or vein), an extremely dangerous condition with the possible conclusions of blindness, necrosis, or paralysis.

Using a cannula avoids these potential complications, as the bluntness doesn’t allow it to pass through these areas, minimising any risks occurring during treatment.

Dermal filler cannula technique

Due to the needle being blunt and unable to pierce through the skin, pre-procedure a smaller, sharper needle is required to make an initial entry point for insertion of the cannula, to reach the deeper layers of the skin.

After the superficial pierce using a sharp needle, the cannula can then be inserted through the entry point to reach the deeper layers and insert the filler.

Using a cannula also enables the injector to feel resistance from certain tissue structures that the cannula passes through, allowing them to judge whether to apply or release pressure or alter the direction of the cannula to avoid veins, arteries and nerves. This is something that you wouldn’t be able to benefit from when using a conventional sharp needle.

Another benefit using a cannula adds to the procedure is the technique that it allows Dr Somji to use. The ‘fanning’ technique means that from only one entry point, he can turn the cannula in different directions to inject the product in to several areas without having to make further entry points or pierce the skin. This means less discomfort, reduced treatment time and far less risk of bleeding, swelling and bruising.

What treatments should a cannula be used for?

The cannula and its technique can be used for most dermal filler procedures, from Non-Surgical Rhinoplasty, Cheek Filler, Lip Filler, Jawline Filler and Tear Trough Filler, which are all Dr Somji’s specialist treatments. Using a cannula for these procedures, such as Lip Filler, ensures the filler is injected in the deeper layers of the skin, and not superficially causing an over-filled look, as well as only using one insertion point reducing the risk of bruising, swelling and for added patient comfort.

At Dr. MediSpa clinics, Dr Somji’s protocol is to use the safest innovative techniques for his patients, hence his status as a Key Opinion Leader in cosmetic procedures.

For more information on Dr Somji’s dermal filler procedures using his specialist technique, give us a call on 020 8418 0362 or visit our Chiltern Street, London or Loughton, Essex clinics to book your consultation. You can also contact us online. We look forward to seeing you.

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