Dosing and administration of local corticosteroid injections for musculoskeletal pain
Local corticosteroid injections should only be given through healthy, normal skin (avoid psoriatic plaques). Contraindications to local corticosteroid injection are:
- infection of the skin at the injection site
- systemic infection, because it may seed a deep infection
- infection of the joint or soft tissue, because injection may worsen infection
- injecting into a prosthetic joint or joint containing a foreign body
- injecting into a joint that is due for joint replacement surgery in less than 3 (or for some indications 6) months.
Joint or tissue | Corticosteroid dose | Local anaesthetic dose [NB3] |
---|---|---|
small joint (eg hand) | 0.25 to 0.5 mL | 0.25 to 0.5 mL—less local anaesthetic may be used in small joints to allow sufficient corticosteroid to be administered for the desired effect |
medium joint (eg wrist) | 0.5 to 1 mL | 0.5 to 1 mL |
large joint (eg knee) | 1 mL | 1 mL |
soft tissue (eg bursa) | 1 mL | 1 mL |
Note: NB1: These are example doses; the dose should be individualised for each person. See Overview of local corticosteroid injections for musculoskeletal pain for more details. NB2: The corticosteroids commonly used for intra-articular or soft-tissue injection are betamethasone sodium phosphate plus betamethasone acetate, methylprednisolone acetate, triamcinolone acetonide, and triamcinolone hexacetonide. NB3: The local anaesthetic of choice is lidocaine (lignocaine) injection; avoid preparations containing adrenaline (epinephrine). |
Dose of triamcinolone hexacetonide 20 mg/mL | ||
---|---|---|
Small joint (eg hand) | Medium joint (eg wrist) | Large joint (eg knee) |
0.03 to 0.05 mL for PIP joints 0.05 to 0.1 mL for MCP and MTP joints | 0.025 mL/kg up to 0.5 mL | 0.05 mL/kg up to 1 mL |
Note: MCP = metacarpophalangeal; MTP = metatarsophalangeal; PIP = proximal interphalangeal NB1: These are example doses; the dose should be individualised for each person. See Overview of local corticosteroid injections for musculoskeletal pain for more details. NB2: Triamcinolone hexacetonide is not registered for use in Australia but is available via the Special Access Scheme. |
If local corticosteroid injection is effective for providing analgesia over an extended duration (eg months), and in the absence of a safer therapeutic alternative, the injection may be repeated. A maximum of 4 injections per joint per year is recommended because of the risk of local tissue atrophy and systemic adverse effects. Avoid multiple injections involving the major weightbearing tendons.
Radiological guidance does not increase the efficacy of local corticosteroid injections and is only required for joints that are difficult to access (eg hip joint).