Effect of Calcitonin Preparation for Acute Low Back Pain of Osteoporotic Fresh Vertebral Compression Fracture

INTERVENTION: elcatonin oral Nonsteroidal anti‐inflammatory drugs(NSAIDs) CONDITION: Osteoporotic lower back pain PRIMARY OUTCOME: Effect of QOL(JSEQ) for pain SECONDARY OUTCOME: VAS(visual analogue scale):pain scale; RDQ:Roland Morris Disability Questionnaire INCLUSION CRITERIA: Subjects are eligible for the study if they meet all the following criteria and give written informed consent for the study: 1) Women 65 years or older 2) Patients in whom acute low back pain developed within the past 2 weeks 3)Patients in whom a new fragile fracture of the thoracolumbar vertebra developed *Subjects who report acute low back pain *Pain is severe with body movement, but there is no or very little pain at rest. *Percussion tenderness is observed. 4) Outpatients who understand the purpose of this clinical study