Techniques of Botulinum Toxin Injections

By Pauline Perrinote


Botulinum toxin injections, typically known as botulinum toxin A injections,are usually used currently as a part of a cosmetic makeover. However, its use isn't restricted to cosmetics and it's very helpful in managing a variety of clinical conditions that involve muscle jerkiness.

Botox is a toxin that is produced by the bacterium Clostridium botulinum. The injection form used in treatments is the sterile lyophilised form of botulinum toxin type A. There a variety of formulations available on the market these days, and most of them are used for the same purposes. In a nutshell, they are useful to get rid of wrinkles on the face (cosmetic purposes), in managing spasticity associated with cerebral palsy, spastic paraparesis, blepharospasm and also for the management of pain.

Botulinum toxin is delivered to the relevant muscle teams, and during this article we are going to look at the injection techniques in some detail.

Injection Administration

The general technique for injecting Botox consists of using a 1.0 mL Tuberculin type syringe along with needles of varying size depending on the muscle being injected. For superficial injections into the skin and the muscles around the eye, a short 25 gauge to 30 gauge needle may be used. However, for larger muscles, a longer 25 gauge may be used.

It is relatively easy to find the right muscle or muscle groups that needs to be injected. Once you do it, a motor point should be found right on the surface of that same muscle. You will know that this is exactly the point that has been injected. You need to clean the skin with alcohol. After you do it, the toxin is then injected into the muscle, and you need to be very careful not to inject the muscle intravascularly.

The time length taken to inject depends on the operator expertise and also the range of muscles that require injecting. Following the procedure, patients might feel a light quantity of pain and discomfort, and this is often simply treated with easy pain medication.

We will look at some of the most important clinical conditions that require Botox injections.

1. Cerebral palsy

That is the case of children with cerebral palsy (CP). In this case they have to be identified. After the appropriate post injection care like physical therapy, they need to consider orthotic management.

2. Blepharospasm

Here, Botox is diluted with normal saline and is injected using a 30 gauge needle into the orbicularis oculi muscle carefully at around 4 to 5 points around the eye. Care should be taken to ensure ptosis does not occur during injection.

There are many more conditions and a detailed discussion on each of these is out of scope of this article.

Botox injections are useful in managing muscle jerkiness and for cosmetic reasons. Techniques can be a challenge and one must employ knowledgeable care while being administered. Once used properly, they can demonstrate an amazing result.




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