Title: The nursing intervention to prevent orthopaedic patients to analyze the effect of pressure ulcers ABSTRACT Pressure ulcer is a global health problems, not only to bring pain, but also increases with the medical treatment demand, the difficulty in hospital and the charge, therefore, the health administrative departments and clinical expert advice on clinical care in early identification of pressure ulcer risk factors and preventive care an early start. Orthopaedic patients due to pain and brake cause long-term passive posture, pressure ulcer occurred high-risk groups. Positive assessment patients, early recognition of pressure ulcer risk factors is to prevent orthopaedic patients of pressure ulcers key. Conventional evaluation tool pressure ulcers are Braden scale and Waterlow scale, the former applies to the elderly patients, the therapeutic and is often recommended application in adults and orthopaedic surgery patients, But from its assessment project, are not highlight orthopaedic patient pressure ulcer risk factors. This study aims to routine for 188 with fixed traction and treatment of patients with orthopaedic in 11 cases of pressure ulcers with risk factors analysis, in order to identify orthopaedic patients of pressure ulcers specific risk factors. Objective: to investigate the orthopaedic patients of pressure ulcers specific risk factors Methods:188 routine traction or with a fixed in the orthopaedic hospital patients who are at risk assessment and evaluation pressure ulcer risk factors include self-made questionnaire and pressure ulcer assessment scale, prospectie, obserational supervisor of pressure ulcers patients, and statistical analysis. Results:188 routine traction or with a fixed orthopaedic patients in 11 cases of pressure ulcers. Single factor analysis results show that different fracture site, age, traction and have fixed time, the pressure ulcer pain patients are statistically significant differences between rate (P < 0.05) or 0.01), Logistic regression analysis showed that prevalence (= time, traction, P < 0.01), with a fixed time (= 3.29, P < 0.05) and pain (= 2.46, P < 0.05) is the cause of pressure ulcer risk factors, Waterlow Braden scale and the scale of the pressure ulcer risk group patients for 18.18 recognition. Conclusion: it is necessary to develop orthopaedic special pressure ulcers, assessment tools to improve patient pressure ulcer risk of bone ability to identify, But before that, orthopaedic nurses pressure ulcer assessment should fully consider the traction and patients with a fixed time and pain, to prevent the pressure ulcers