Carpal tunnel showdown: shots or knife?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Adult (≥18 years of age) 2. Patient history indicating CTS 3. Neurophysiological examination performed within 6 months 4. Diagnosis of CTS based on: 1. Classic/probable or possible symptoms, and neurophysiological findings consistent with CTS Or, in case of normal neurophysiological findings: 2. Classic/probable symptoms and positive physical exam findings and/or nighttime symptoms 5. Mild to moderate symptoms (intermittent, interfering with everyday life, and/or disturb sleep) Exclusion Criteria: 1. Previous CTS surgery or corticosteroid injection in the carpal tunnel in the relevant hand 2. Diagnosis of severe CTS, based on history and examination indicating severe CTS with constant symptoms including pain, loss of sensibility, dexterity or reduced temperature sensation, weakness of thumb abduction and opposition, or atrophy of thenar musculature. Disappearance of pain may indicate permanent sensory loss. 3. History suggesting underlying causes of CTS e.g. inflammatory wrist arthritis and/or flexor tenosynovitis 4. Previous significant trauma or fracture, deformity or tumor in the wrist or hand in the relevant hand 5. Presence of conditions affecting a normal nerve function e.g. cervical disc herniation, polyneuropathy or previous nerve injury 6. Major co-morbidities, such as severe malignancies, severe or uncontrolled infections, uncontrollable hypertension, severe cardiovascular disease (NYHA class III or IV) and/or severe respiratory diseases, severe renal failure, active ulcus ventriculi, leukopenia and/or thrombocytopenia 7. Severe psychiatric or mental disorders 8. Local infection or wound in the affected hand/wrist 9. Any other medical condition that according to the treating physician and/or local guidelines makes adherence to treatment protocol impossible 10. Inadequate birth control1, pregnancy2, and/or breastfeeding (current at screening or planned within the duration of the study) 11. Known hypersensitivity to Triamcinolone Hexacetonide (Lederspan) or any of the excipients (sorbitol, polysorbate or benzyl alcohol) 12. Concomitant therapy with CYP3A-inhibitors or digitalis glycosides 13. Patients vaccinated or immunized with live virus vaccines within 2 weeks of treatment 14. Alcohol or other substance abuse 15. Language barriers 16. Other factors which make adherence to study protocol impossible