Key Takeaways:
- Steroid injections will hurt less if given with a 25 gauge needle.
- The larger the gauge size of a needle, the thinner the diameter of the needle.
- Corticosteroids are not particularly viscous injections, so pain-management doctors can normally use thinner needles for them.
When it comes to surgical needles, like most other medical equipment, there are different sizes. The most common sizes range from 16-27 gauge, which is the unit of measurement used for needle thickness. The diameter of a needle gets smaller as the gauge number increases. So, a lower gauge will be a thicker needle, and a higher gauge will be thinner. Additionally, needles will vary in length, usually from .375″ – 3.5″ (Abdul Karim, Medsitis).
Surgical Needle Size and Uses
16-18 Gauge Needles
These needles are on the thicker side of the scale. Insertion may be painful, and a large vessel is required. They are often used for IV infusions:
- in adults and adolescents
- of viscous fluids
- of a large volume
- at rapid infusion rates
19-20 Gauge Needles
These needles are slightly thinner, but still may be painful upon insertion and require a large vessel. They are normally as large of a needle as doctors will use for intramuscular injections (IMs), but will rarely be used for them. They are most commonly used for IV infusions:
- in adults
- of blood products and other viscous fluids
21 Gauge Needle
These needles wobble on the scale. They are the thinnest of the “thick needles” but are the thickest of the “thin needles.” Common uses for 21 gauge needles are:
- in IV injections or infusions for most ages
- for intramuscular injections
22-23 Gauge Needles
These needles are thin enough that a large vessel isn’t required for use. They are suitable for small or fragile veins, but insertion through tough skin may be difficult. Infusion control devices may be required. Uses for 22-23 gauge needles are for:
- IV infusions in all ages, including infants, toddlers, and the elderly
- IV infusions of non-viscous fluids
- IV infusions at a slow to moderate infusion rate
- Intramuscular injections
24-27 Gauge Needles
The final group of commonly used needles are 24-27 gauge. They are very useful for small veins, but insertion through tough skin may be difficult and infusion control devices may be required. Common uses include:
- IV infusions in all ages, including infants, toddlers, and the elderly
- IV infusions of non-viscous fluids
- IV infusions at a slow to moderate infusion rate
- Subcutaneous (SC) injections
- Intradermal (ID) injections
Surgical Needles and Cortisone Injections
One of the most common uses of surgical needles in orthopaedics is for cortisone shots, or injecting corticosteroids. We use corticosteroids to help manage pain and inflammation. They help mitigate the symptoms of several different chronic conditions, like rheumatoid arthritis, bursitis, gout, back pain, osteoarthritis, tendonitis, and more.
Injection sites are normally located at the joints, so ankles, elbows, hips, knees, shoulders, spines, and wrists are all common sites. To help our patients be comfortable, we normally use the thinner 24-27 gauge needles.
Frequently Asked Questions About Corticosteroid Shots
- How long do corticosteroid shots take to work?
- Depending on the area of the injection, it may take anywhere from a few hours up to a week to start feeling the effects of a corticosteroid shot.
- Are corticosteroid shots painful?
- If using the correctly sized needle, the injection shouldn’t hurt too much. However, there is a risk of a flare period a day as your body might react with an inflammatory response before the medication starts working (Hospital of Special Surgery).
- How long do corticosteroid shots last?
- The average amount that pain relief from cortisone shots last is around 3-6 months. However, it can be dependent on several factors, including:
- How long the condition has been present
- Which part of the body is receiving the injection
- What condition is being treated
- The average amount that pain relief from cortisone shots last is around 3-6 months. However, it can be dependent on several factors, including:
If you or someone you love has suffered an injury in the Louisville, Kentucky-area, board certified sports medicine physician Dr. Stacie Grossfeld at Orthopaedic Specialists PLLC can help. Orthopaedic Specialists PLLC is accepting new patients, and same day appointments are available. For additional information or to schedule an appointment, please contact Orthopaedic Specialists PLLC today at 502-212-2663.
Recent Comments