Myofascial thoracic spine pain syndrome

What is myofascial thoracic spine pain syndrome?

Myofascial pain occurs when muscles and their fascia (connective tissue) are overloaded, shortened or permanently tense. So-called trigger points are typical - circumscribed, pressure-sensitive nodes in a tense muscle strand, which can cause pain to radiate to distant regions (referred pain). In the area of ​​the thoracic spine (BWS), this particularly affects the native back muscles, the interlaminar muscles (rhomboids), parts of the trapezius muscle, the serratus anterior/posterior, the latissimus dorsi and pectoral muscle groups.

Complaints often occur after sitting for a long time with a hunched posture, during one-sided activities (e.g. mouse arm, overhead work) or as a result of unusual stress (crafts, moving, long driving). Stress, shallow breathing, coughing phases after infections or a pronounced hunched back posture can also play a role. Myofascial pain is functional - that is, the structure of the back is usually intact, but the function of the muscles is disturbed.

Anatomy and pain mechanics of the thoracic spine

The thoracic spine consists of 12 vertebrae with articulated connections to the ribs (costal and facet joints). It is structurally more stable than the cervical or lumbar spine, but allows rotation and flexion/extension, which are important for breathing, posture and shoulder girdle movements.

• Muscles involved: M. trapezius (middle/lower part), M. rhomboideus major/minor, M. serratus anterior and posterior superior, M. latissimus dorsi, native back muscles (Mm. erector spinae), Mm. intercostal, pectoralis minor/major muscle.
• Trigger points: pressure-sensitive, small knots in a “taut band” of the muscle; trigger local and radiating pain.
• Referred pain: Radiating along the costal arch or between the shoulder blades; occasionally confused with intercostal nerve pain.

Mechanically, trigger points often arise from repetitive micro-overload, static holding tension, lack of blood circulation and lack of movement. An imbalance of shortened thoracic and weak scapular stabilizers (e.g. serratus anterior, lower trapezius) promotes a forward slumped posture and increases myofascial tone.

Causes and risk factors

• Sitting for long periods of time, working at a computer without breaks, poor workplace ergonomics
• One-sided loads: overhead work, carrying on one side, musical instruments
• Sporty overload without compensation (climbing, rowing, swimming, strength training with technique deficits)
• Respiratory muscle involvement after infections with coughing or shallow chest breathing
• Stress, lack of sleep and teeth grinding as amplifiers of muscle tone
• Posture variations: hunched back, scapular dyskinesia, structural kyphosis (e.g. in Scheuermann's disease)
• Previous injury or immobilization

Typical symptoms

• Dull, stabbing or burning pain next to the spine or between the shoulder blades
• Band-like radiation along a rib or into the lateral chest wall
• Pressure pain over trigger points with a reproducible radiation pattern
• Restriction of movement: rotation/extension of the thoracic spine painful, feeling of tension
• Reinforcement through static posture, deep breathing, coughing or certain arm positions
• No numbness, no muscle weakness of typical nerve root patterns (suggests against radicular cause)

Warning signs: When should you clarify urgently?

Myofascial pain is often benign. However, some symptoms should be examined quickly by a doctor as they may indicate other causes.

• Acute, pressing chest pain with shortness of breath, dizziness, nausea or radiating to the arm/jaw
• Fever, chills, pronounced feeling of illness
• Unexplained weight loss, pain at night at rest
• Neurological deficits (numbness, muscle weakness), gait disorders
• Fall/accident, osteoporosis, known tumor disease
• Belt-shaped pain with rash/blisters (suspected herpes zoster)

Diagnosis in orthopedic practice

The diagnosis is primarily clinical. During the conversation, we record the course, stress, everyday work, sport, stress and previous illnesses. The physical examination focuses on posture, mobility, breathing and the shoulder girdle.

• Palpation of the muscles: finding tautened ligaments and trigger points, reproduction of the typical pain
• Assessment of thoracic spine mobility (rotation/extension/flexion) and costo-vertebral joints
• function of the scapula (serratus anterior, lower/upper trapezium); Scapular dyskinesia
• Breathing mechanics: abdominal/diaphragmatic breathing vs. high chest breathing
• Brief neurological examination to rule out radicular signs

Imaging (X-rays, MRI) is usually not necessary if the findings are typical. It is considered if there are warning signs, trauma, treatment-resistant courses or suspected structural causes. In rare cases, diagnostic-therapeutic trigger point injections can help to verify the pain generators.

Demarcation: What do you have to differentiate between?

Not all thoracic spine chest or back pain is myofascial. Depending on the pattern, the following diagnoses come into consideration:

• Intercostal neuralgia: Irritation of an intercostal nerve with razor-sharp, breathing-dependent pain - see intercostal neuralgia.
• Arthrogenic thoracic spine pain from facet or costovertebral joints; If necessary, diagnostic blockages make sense.
• Herniated disc of the thoracic spine: rare, rather with neurological signs typical of the segment - see herniated disc of the thoracic spine.
• Scheuermann's disease: structural kyphosis in adolescence, with tension in adulthood - see Scheuermann's disease.
• Pleurisy/pneumonia, herpes zoster, cardiac or vascular causes (differential diagnosis for chest pain).

Conservative therapy: multimodal and sustainable

The aim is to gradually relieve overactive muscles, improve thoracic spine and shoulder blade function, and provide everyday self-management. Therapy depends on the severity, duration and individual factors.

Taping, temporary posture reminders and relaxation techniques can also be helpful. Acupuncture or dry needling may be considered as an additional option for selected patients; The evidence is heterogeneous, application is carried out by trained practitioners and after informed consent.

Exercises and self-help for at home

The following exercises are general and should be carried out in a pain-adapted manner. 3-5 times a week, 10-15 minutes each time, is a good start. If you are unsure, we will be happy to advise you individually in Hamburg.

• BWS mobilization in the seat: hands behind the head, elbows slightly backwards, gently stretching over a backrest/peanut roll; 8-10 reps.
• Chest stretch on the door: Forearm on the door frame, turn your upper body slightly forward, stretch for 20-30 seconds, 2-3 sets per side.
• Rhomboid release: Fascia ball on the wall between the shoulder blade and spine, gentle pressure and small movements, 60-90 seconds per side.
• Serratus activating: wall push-up with shoulder blade protraction at the end of the movement; 2-3 sets of 10-12 reps.
• Y/T/W raises in prone position or with mini band to activate the lower trapezius; moderate, clean technology.
• Breathing exercise: 4–5 minutes of diaphragmatic breathing (hand on stomach, calm inhalation/exhalation), preferably while lying down.

Important: Do not “train” into the pain. Light, well-tolerated stretching and muscle work is desired; increase the volume and intensity slowly.

Ergonomics and everyday tips

• Workplace: screen at eye level, chair with lumbar support, shoulders relaxed, forearms on top.
• Microbreaks: Get up for 1-2 minutes every 30-45 minutes, mobilize your thoracic spine, and take deep breaths.
• Telephone/notebook: Use the headset, do not pinch it between your shoulder and ear; Use external keyboard/mouse.
• Carrying/everyday life: distribute loads, prefer a backpack, change one-sided activities regularly.
• Sleep: lie on your side with pillow support, mattress of medium hardness, avoid pillows that are too high.
• Stress management: short breaks, relaxation routines, realistic training planning.

Interventional options – used selectively

If conservative measures are not sufficient or trigger points are very persistent, selected interventions are an option - always in combination with active therapy and after information about the benefits and risks.

• Trigger point injection: Injection of a local anesthetic (possibly with NaCl) into the trigger point. The aim is to reduce tone and modulate pain.
• Dry needling: needling of the trigger point without medication by trained practitioners; can reduce symptoms in the short term.
• Facet joint or costovertebral blockages: If an arthrogenic contributory cause is suspected, diagnostically and therapeutically useful.

Methods such as shock waves or kinesio tape can be used to provide support; the evidence varies depending on the indication. A permanent solution usually requires a combination of training, ergonomics and self-management.

Course and prognosis

With consistent, everyday-oriented treatment, myofascial thoracic spine pain often improves within a few weeks. Relapses are possible if triggering factors (sitting for long periods of time, technical errors, stress) persist. A personal exercise and break program as well as gradual stress control are crucial in order to achieve long-term freedom from symptoms or significant relief.