Trigger point injections

What are trigger points?

Trigger points are tender, palpable hardenings within a muscle or the surrounding fascia. Local pain with possible transmission to distant zones (referred pain) is typical, e.g. B. from the trapezius muscle towards the head or from the buttocks into the back of the thigh.

• Common complaints: dull, stabbing or pulling pain, restricted movement, muscular weakness due to pain inhibition
• Triggers: overwork, monotonous posture, microtrauma, stress, lack of sleep
• Diagnostics: Anamnesis, palpation (pressure pain, palpable lump, possibly twitch response), functional test, exclusion of other causes of pain

Myofascial pain is common and can often be managed conservatively. Depending on the findings, injections can reduce pain in the short term and make therapy with exercises easier.

Conservative First: What to Try Before

Our approach is conservative: First we use proven non-invasive measures. Injections are an option if the symptoms persist or exercises are blocked by pain.

• Education on posture, workplace ergonomics, break management
• Heat therapy, blood circulation promotion, moderate endurance training
• Targeted stretching and strengthening exercises, myofascial self-release (fascia ball, roller)
• Physiotherapy and manual techniques
• Short-term pain medication according to tolerance and medical recommendation
• Sleep and stress management (e.g. breathing techniques, microbreaks)

If these measures are not sufficient or only have a short effect, we will discuss whether a trigger point injection can support the rehabilitation process.

When are trigger point injections useful?

Not every muscle knot needs an injection. The method is suitable for clinically proven, circumscribed trigger points that persist despite adequate conservative therapy and limit functionality.

• Persistent myofascial pain with a tender point and typical radiation pattern
• Pain-related limitation of exercises or everyday activities
• Exclusion or co-treatment of other main sources of pain (e.g. facet joints, sacroiliac joints, nerve root irritation)

Caution is advised in the case of blood thinning, known allergies to local anesthetics, acute infections near the injection or systemic infections. During pregnancy and breastfeeding, the indication is particularly cautious and individual.

Principle of action and medications used

Trigger point injection involves injecting a very small amount of local anesthetic directly into the painful point. The aim is to interrupt the pain-spasm-pain cycle, to attenuate local pain receptors and to normalize tone in the short term.

• Local anesthetics such as low-dose lidocaine are standard.
• An injection without medication (“dry needling”) is an alternative technique; A local anesthetic is usually used for the trigger point injection.
• Glucocorticoids are usually not necessary for pure trigger point injections and are used - if at all - very selectively and after weighing up the benefits and risks.

The effect often sets in quickly, varies from person to person and best develops its potential in combination with active measures (stretching, strengthening, ergonomic adjustments).

Course of treatment

The session usually lasts 10-20 minutes. A temporary feeling of muscle soreness (“post-needling soreness”) is possible and usually resolves within 24-48 hours.

Effect, duration and treatment series

Many patients report noticeable relief shortly after the injection or within the first few days. The duration of the effect varies – depending on the cause, chronicity and accompanying factors.

• Short-term pain reduction can make exercises and everyday life easier.
• Often 1-3 sessions are sufficient; In chronic cases, several appointments spaced 1-2 weeks apart can be considered.
• Active follow-up treatment and behavioral training are crucial for sustainability.

Risks and side effects

The trigger point injection is a minimally invasive measure with an overall low risk, but complications are still possible. We provide individual information and work under sterile conditions.

• Common: transient puncture pain, tenderness, small hematoma
• Uncommon: dizziness, vasovagal reaction, muscle soreness-like symptoms
• Rare: infection, nerve irritation, vascular puncture, allergic reaction to local anesthetics
• Region-specific: Theoretical risk of pneumothorax in regions close to the thorax - here particularly careful technique and, if necessary, ultrasound guidance
• Increased risk of hematoma when taking blood thinners; The procedure is individually tailored

Warning signs after treatment (e.g. increasing redness, fever, sensory disturbances, severe shortness of breath after chest wall injection) should be checked by a doctor immediately.

Aftercare: What you can do yourself

• Light exercise and gentle stretching of the treated muscle starting the same day
• Warmth and moderate activity promote blood circulation
• Drink enough water; Avoid heavy strain on the target muscle for 24 hours
• Targeted exercise program for posture, coordination and strength
• Optimize workplace ergonomics; Schedule micro-breaks
• Self-treatment with a fascia ball or roller in consultation with the therapist

Frequently treated areas

• Neck and shoulder muscles (trapezius, levator scapulae, infraspinatus/supraspinatus)
• Lumbar spine and pelvis (quadratus lumborum, gluteus medius/minimus, piriformis)
• Jaw and masticatory muscles for myofascial headaches and facial pain
• Forearm flexors/extensors for overuse syndromes
• Calf and thigh muscles during overloaded sports

Which region is treated depends on the findings, symptoms and safety aspects.

Trigger point injection vs. dry needling

In dry needling, a very fine needle is inserted into the trigger point without medication; in classic trigger point needling, a small amount of local anesthetic is also used.

• Objective of both procedures: mechanical irritation of the trigger point, interruption of pathological activity, pain relief
• The evidence shows short-term effects for both techniques; The choice depends on individual findings, preferences and safety aspects.
• We will discuss with you which method makes sense in your situation.

Evidence and guidelines

Studies suggest that needling techniques for myofascial pain can reduce pain and improve function in the short term. They are particularly effective when embedded in a multimodal concept with active movement therapy.

Long-term progression depends heavily on training compliance, ergonomics, sleep and stress management. An injection does not replace these building blocks, but can make them easier.

Contraindications and caution

• Acute local infection or skin lesion at the injection site
• Known allergy to local anesthetics used
• Severe coagulation disorder; individual risk assessment under anticoagulation
• Severe systemic illness or fever (delay treatment if necessary)
• Pregnancy/breastfeeding: Check benefit-risk individually, if possible not in high-risk regions
• Unclear cause of pain without confirmed myofascial findings

Organization and appointment in Hamburg

The indication, information and implementation take place in our orthopedic practice at Dorotheenstrasse 48, 22301 Hamburg. The costs depend on the indication and billing mode (GOÄ/insurance status). We will inform you transparently in advance.

For successful therapy, we always plan the injection together with an active exercise program and discuss clear goals, follow-up checks and possible alternatives.

Alternatives and complementary procedures

Depending on the source of the pain, other targeted infiltrations may be considered. These should not be seen as replacements, but rather as specific options for a different diagnosis.

• Facet infiltration for vertebral joint pain
• SIJ infiltration for iliosacral complaints
• Nerve root injections/PRT for radicular pain
• Joint infiltrations (e.g. shoulder, knee, hip) for intra-articular causes
• Bursa injections for bursitis
• Tendinopathy injections for tendon insertion pain
• Neural therapy as a regulatory procedure in selected cases

Related therapies and infiltrations

If the diagnostics indicate other pain generators, the following procedures may be appropriate:

• Periradicular therapy (PRT)
• Facet infiltration
• SIJ infiltration
• Nerve root injections
• Joint infiltrations
• Bursa injections
• tendinopathy injections
• Neural therapy