Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/19/2025

Nerve Blocks and Trigger Point Injections for Cervicogenic Pain

Assessment of Medical Necessity

  • The patient presents with persistent cervicogenic pain following a motor vehicle accident with documented cervical disc bulge and radicular symptoms, meeting criteria for medical necessity 1, 2
  • The patient has failed conservative treatments including NSAIDs, which is a prerequisite for considering interventional procedures 2, 3
  • The pain has persisted for more than 3 months and significantly impacts activities of daily living, sleep, and quality of life, with a numerical pain rating scale of 7-8/10 2
  • Trigger points have been identified by palpation, particularly in the trapezius, levator scapulae, paravertebral cervical muscles, and occipital nuchal area 2, 3
  • The American Society of Anesthesiologists recommends greater and lesser occipital nerve blocks as a first-line treatment for occipital neuralgic presentation 4, 5
  • After assessing the response to occipital nerve blocks, trigger point injections may be considered as a separate procedure if occipital pain persists 2
  • Performing both procedures simultaneously is not supported by high-quality evidence and may confound assessment of which intervention is providing benefit 6, 7

Evidence-Based Rationale

  • The American Society of Anesthesiologists and American Society of Regional Anesthesia and Pain Medicine guidelines support the use of medial branch blocks for facet-mediated spine pain 4
  • Trigger point injections are recommended only for temporary, symptomatic relief as long-lasting benefit has not been demonstrated (Level II evidence) 1, 6, 2

Treatment Protocol

  • Begin with occipital nerve blocks using local anesthetic with or without corticosteroid, as recommended by the American Society of Anesthesiologists 4, 5
  • Document quantifiable improvement in pain scores, function, and duration of relief 2
  • If inadequate relief after 2-4 weeks, proceed with cervical thoracic myofascial trigger point injections 2, 3

Common Pitfalls to Avoid

  • Performing multiple interventions simultaneously prevents determination of which procedure is providing benefit 2, 5
  • Failing to incorporate physical therapy and other conservative measures as part of a comprehensive pain management program 1, 2, 3
  • Overreliance on injections for long-term management when evidence supports only short-term relief 6, 7, 2

Follow-up and Progression

  • Document quantifiable improvement in pain scores, function, and duration of relief with each intervention 2
  • Ensure physical therapy focusing on stretching and strengthening exercises is implemented concurrently with any injection therapy 2, 3