Nerve Block Injections     
“Chronic pain or sudden acute pain following surgery is not just an obstacle to daily life — it can also be difficult to pinpoint its exact cause. Nerve block injections have therefore become a vital treatment approach, playing a dual role: providing effective pain relief and serving as a precise diagnostic tool to identify the true source of pain. ”

What Is the Core Principle of a Nerve Block?

A nerve block involves injecting medication — typically a local anaesthetic or anti-inflammatory agent — around a targeted nerve in order to temporarily interrupt pain signals travelling to the brain. The technique ranges from localised pain relief to complete sensory blockade in preparation for surgery. The physician selects the injection site based on the location of the problem — for example, a Genicular Nerve Block or a Cervical Medial Branch Block.

Nerve block injections are far more than just temporary pain relief — they are a key tool that helps patients return to a better quality of life, while also enabling physicians to accurately diagnose the source of chronic pain.

Primary Objectives of Nerve Block Injections

  • Anaesthetic injection for pain relief — aimed at providing temporary relief for both acute and chronic pain conditions, particularly when pain is localised and a targeted approach is appropriate.
  • Anaesthetic injection for diagnostic purposes — in cases where the patient experiences pain but the exact cause is unclear, a diagnostic nerve block can help the physician identify the source by observing which injection site produces relief.
  • Localised anaesthetic block for surgical pain management — the physician administers a local anaesthetic to help manage pain before and after surgery, such as in trigger finger release procedures.

Where Can Nerve Blocks Be Performed?

The human body contains over a hundred major nerves, each serving different functions. Nerve block injections can therefore be performed in a wide variety of locations, including:

  • Trigeminal nerve block : — an anaesthetic injection targeting the trigeminal nerve, which is responsible for transmitting sensory information from the face, to treat facial pain conditions.
  • Stellate ganglion block — an injection targeting the stellate ganglion, a cluster of sympathetic nerves that form part of the autonomic nervous system.
  • Cervical medial branch block — an injection targeting the small medial branch nerves of the cervical spine, which transmit pain signals from facet joints.May or may not include an anti-inflammatory agent, used to diagnose or treat lower back pain caused by to diagnose the cause of chronic pain or to treat neck pain arising from facet joint inflammation.
  • Lumbar medial branch block — an injection targeting the small medial branch nerves of the lumbar spine, which transmit pain signals from the lumbar facet joints.May or may not include an anti-inflammatory agent, used to diagnose or treat lower back pain caused by facet joint inflammation.
  • Sacral lateral branch nerve block — an injection targeting the lateral branch nerves of the sacroiliac joint, to determine whether the SI joint or surrounding ligaments are the source of pain and whether pain signals are being transmitted through these lateral branch nerves.
  • Shoulder articular nerve block — a block of the sensory nerves of the shoulder joint, delivered via injection of local anaesthetic and/or anti-inflammatory medication around the sensory nerves, to diagnose and/or treat shoulder pain.
  • Genicular nerve block — a block of the nerves around the knee joint, using targeted injections of local anaesthetic and/or medication near specific nerves at the knee to relieve pain.
  • Intercostal nerve block — a block of the intercostal nerves between the ribs, used for localised pain relief in the chest or upper abdomen.
  • Pudendal nerve block — an injection of local anaesthetic and/or anti-inflammatory medication near the pudendal nerve, used to treat pain in the pelvic region.
  • Lumbar sympathetic block — a block of the lumbar sympathetic nerves, delivered via injection of local anaesthetic and/or anti-inflammatory medication into the lower back area to treat pain conditions related to the sympathetic nervous system.

 

Expected Outcomes

Nerve blocks may take anywhere from a few days to up to 2 weeks before the full pain-relieving effect is observed.Fordiagnostic nerve blocks performed without anti-inflammatory medication, pain relief will only last on the day of the procedure. For longer-lasting relief, follow-up treatment with radiofrequency ablation (nerve burning) is recommended, which can provide relief for for It can be relieved6 months or more — thoughthis varies based on each individual's response to treatment.

Post-Treatment Self-Care

หลังการรักษาอาจรู้สึกระบมบริเวณที่ฉีด (บริเวณที่แทงเข็มลงไป) ในช่วง 24 ชั่วโมงแรก (1 วัน) สามารถประคบเย็นได้ โดยประคบครั้งละไม่เกิน 10-15 นาที วันละ 3-4 ครั้ง และสามารถรับประทานยาลดปวดได้ (ในกรณีที่แพทย์แนะนำ)

Treat Pain at Bangkok Interventional Clinic

At Bangkok Interventional Clinic, we focus on personalised, in-depth pain management tailored to each individual.
  • Assessment and treatmentby board-certified pain management specialists
  • Targeted interventional procedures for fast and effective symptom relief
  • Patient education to support sustainable, long-term self-care

Our goal is to improve the quality of life for every person who comes to us for care. If you are experiencing pain that affects your daily life, an accurate diagnosis and the right treatment plan are the first steps toward meaningful change. Bangkok Interventional Clinic — Specialised Pain and Nerve Care by Multidisciplinary Specialist Physicians

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If you are living with chronic pain, Bangkok Interventional Clinic

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