Our study is a prospective observational trial.Patients needing hip fracture surgery are divided into two groups according to the anesthesia type during surgery:Regional Anesthesia group(RA),General Anesthesia group(GA).To evaluate the status of patients before surgery,we use Orthopedic POSSUM scoring system.It consists of 12 physiological factors and 6 operative severity factors.Then,we will observe outcome of the two groups and record every complication after surgery.Finally,the initial and adjusted morbidity and mortality according to Orthopedic POSSUM scoring system of the two groups are compared.