What needle size is recommended for trigger point (myofascial trigger point) injection?

From the Research

Needle Size for Trigger Point Injection

• The recommended needle size for trigger point (myofascial trigger point) injection is not consistently stated across studies, but various gauges have been used:
  • 21-gauge needle 1
  • 23-gauge needle 1
  • 25-gauge needle 1
• A study comparing 3 needle sizes (21-, 23-, and 25-gauge) for trigger point injection in myofascial pain syndrome found no significant difference between the groups in terms of pain intensity during injection, but injections with 21- or 23-gauge needles were found to be more effective in terms of health-related quality of life 1
• Other studies have used different needle sizes for percutaneous release of trigger finger, including:
  • 19-gauge needle 2
  • 14-gauge needle 3
  • A specially designed needle (0.8×100 mm) with a planus tip 4

Considerations for Needle Size Selection

• The choice of needle size may depend on the specific procedure and the individual patient's needs
• Further research is needed to determine the optimal needle size for trigger point injection and percutaneous release of trigger finger 1