The infiltration concept defines the injection of a medication in a joint or soft tissue so that it acts in the affected spot specifically. The infiltrations are used in painful and inflammatory processes y their principal objective is to alleviate the pain, recovering in that way the joint’s or the tissues functionality.
It is indispensable to use the ultrasound to guide the infiltration because it allows us to visualize the needle in real time, consequently controlling its trace and localizing with accuracy the infiltration spot.
The infiltrated products are divided into various groups depending on the type of medication:
- Steroid medication. Its aim is an anti-inflammatory one.
- Anaesthetic medication. Its aim is the immediate decrease of pain.
- Hyaluronic acid. It restores the protective viscoelasticity of the synovial fluid of the joints. Acts as a lubricator reducing the friction and enhancing the articular mobility.
The most frequent injuries in which these infiltrations of anti-inflammatory and anaesthetics are used are:
- Subacromial bursitis
- De Quervain tenosynovitis
- Inflammatory processes of the shoulder joint
- Inflammatory processes of the hip joint
- Inflammatory processes of the knee joint
- Neural blocks for pubalgias
In terms of the hyaluronic acid, it is mostly used in articular overuse injuries:
- Hip arthrosis
- Knee arthrosis
- Patelo-femoral pain syndrome