Overview
Trigger point injection for mid back pain is a targeted treatment used when tight muscle knots contribute to thoracic discomfort. Trigger points are small sensitive areas within a muscle that can feel tight, tender, or rope like. In the thoracic region these areas often develop because of poor posture, prolonged sitting, repetitive strain, stress related tension, or following injury.
These muscle knots can cause sharp or aching pain, restrict movement, and sometimes radiate discomfort around the ribs or into the shoulder blades. Trigger point injection places a small amount of local anaesthetic directly into the affected muscle band to help relax the fibres and reduce pain.
By reducing muscle tension, trigger point injection can make stretching, physiotherapy, and rehabilitation more effective.
Who this treatment helps
Trigger point injection for mid back pain may be considered for people with:
- Localised mid back muscle pain
- Tight tender knots that do not release with stretching or massage
- Pain aggravated by posture, lifting, or twisting
- Muscular tension following injury or strain
- Referred pain around the ribs or shoulder blades
- Persistent symptoms despite physiotherapy or medication
A consultation is required to confirm suitability and rule out other causes of thoracic pain.
What is a trigger point injection
A trigger point injection is a minimally invasive procedure that targets a tight band within a muscle. A fine needle is inserted into the trigger point and a small amount of local anaesthetic is injected. The medication helps relax the muscle fibres while the needle itself may mechanically release the knot.
In some cases dry needling may be used without medication depending on the clinical judgement of your consultant.
Ultrasound guidance may be used when deeper thoracic muscles are involved to improve accuracy and safety.
What to expect during the procedure
- Your consultant identifies the trigger point through examination and palpation
- The skin is cleaned and the area is prepared
- A fine needle is inserted into the trigger point
- Local anaesthetic is injected and the muscle may twitch briefly as it relaxes
- The needle is removed and gentle pressure is applied
- You may be advised to stretch the area afterwards
- You can usually go home shortly after the procedure
The procedure typically takes around 5 to 10 minutes.
After the procedure
- Mild soreness or bruising at the injection site is common and usually settles within a day or two
- Many people notice improved movement and reduced tightness soon after treatment
- Gentle stretching and heat therapy may help maintain the benefits
- Normal activities can usually be resumed the same day
- Your consultant may recommend physiotherapy to support longer term improvement
Benefits
- May reduce muscular mid back pain
- Can improve posture and movement
- May reduce pain radiating around the ribs or shoulder blades
- Supports physiotherapy and rehabilitation
- Quick procedure with minimal downtime
- May help confirm whether muscle tension contributes to symptoms
Possible risks and side effects
Trigger point injections are generally safe when performed by experienced clinicians, although some side effects may occur.
- Temporary soreness or bruising
- Mild bleeding at the injection site
- Light headedness
- Infection, which is rare
- Very rare irritation of nearby structures
Your consultant will explain individual risks during your assessment.
When to consider other options
If symptoms persist or if muscle tension is not the main cause of pain, your consultant may discuss thoracic facet block and ablation, thoracic nerve block and PRP, thoracic epidural injection, physiotherapy, posture based rehabilitation, medication review, or combined approaches for persistent thoracic pain.
Safety note
Please inform your consultant if you take blood thinning medication, have allergies, diabetes, active infection, are pregnant, or have had previous reactions to local anaesthetic. If you feel lightheaded after treatment you should avoid driving until you feel fully well.
Arrange a consultation to discuss whether trigger point injection for mid back pain may be appropriate for your symptoms.
You can also explore our dorsal pain treatments, view all pain treatments, or learn more about our pain management services.