The small needle knife, also known as the needle knife, is a miniature scalpel that arose in China and can also be called a micro knife, a model of the combination of traditional medicine of the motherland and modern medicine. Its inventor, Mr. Zhu Hanzhang, has said, “The small needle knife is a fusion of the needle of acupuncture therapy and the knife of surgical therapy”. The needle knife consists of three parts: the blade, the body and the handle, and the blade is about 1mm wide, so no incision is left after treatment, and no sutures are needed, making it a new type of “closed” surgery. Shaanxi Provincial Hospital of Traditional Chinese Medicine, Department of Spine and Joint Surgery Yan Yong The principle of small needle knife treatment of orthopedic diseases is to achieve the purpose of unblocking adhesions, loosening scar and contracture tissue, eliminating or mediating local tissue pressure through closed surgical operation, so small needle knife has very satisfactory results for chronic soft tissue strain, especially tendon sheathitis, tennis elbow, frozen shoulder, bursitis, neck, shoulder, lumbosacral pain.