In the first case, the medicament solution is injected internally into the joint, while in the latter, the drug is inoculated into a site adjacent to the joint.
The main indications for infiltration therapy are related to joint disorders (e.g. arthrosis or non-infectious arthritis, chondropathies, etc.) and pathologies relating to periarticular structures and soft tissues (bursitis, capsulitis, enthesopathies, fasciitis, fibrositis, peritendinitis, root syndromes, tendinitis, tenosynovitis, etc.).