All patients were given a description of the purpose of thestudy and theplanof treatments,and theparticipants gavetheirverbal and writtenconsent.Thesepatientswere randomly divided into acupuncture group (nZ15) and injection group (nZ15) using a random allocation software. In the case group (acupuncture), disposable, sterilized, flexible stainless steel needles (size: 0.25 mm x 40 mm) were used. The needles were inserted into theacupointsLI-5(Yangxi),LU-7(Lieque),and LU-9 (Taiyuan). These points were selected based on the me-ridians contributing to the affected wrist according to traditional Chinese medicine.