Efficacy of Ultrasound-Guided Needle Knife Release for Trigger Finger

Inclusion Criteria: * Idiopathic TF at the level of A1 pulley * Trigger finger of Green's grades II or III or IV (moderate to severe) * Symptoms persist for at least three months despite conservative treatments. * Ability to provide informed consent and comply with follow-up requirements. Exclusion Criteria: * Patients with secondary causes of TF like diabetes mellitus, rheumatoid arthritis, gout, hypothyroidism, amyloidosis, and sarcoidosis. * Patients with TF of Green's grade I. * Previous surgical intervention on the affected digit. * Allergy or contraindication to local anesthetics. * Pregnancy or lactation. * Inability to comply with follow-up assessments.