Objective This study was to investigate the maturation of wrist and cervical vertebrae of 9～15 years old children from Tianjin, analyze the stage of skeletal maturation and predict the puberty growth spurt using the maturation of wrist and cervical vertebrae, offer more proper method of determining skeletal maturation for clinical orthodontists.

Methods 26 operations were performed on the patients with cervical vertebral disease of the spinal cord, ossification of posterior longitudinal ligament in cervical region and fracture of cervical spine with paraplegia, who were followed up to 0.

Clinical analysis of emergency operation of lower cervical fracture and dislocation by anterior approach in 23 cases;

Curative effect of aspirating sputum and lavage by bronchofiberscopy in cervical fracture with spinal cord injury patients complicating obstruction of airway after operations

Objective To study the image features and clinical significance of 3-dimensional (3-D)and multiplanar reconstruction with spiral CT(SCT) in cervical spinal fractures.

Application of anterior cervical dynamic ABC plate in treatment of cervical spine fracture and dislocation;

Application of the improved retrograde tracheal intubation in the anaesthesia for patients undergoing cervical spine fracture surgery

Objective: To summarize the features from cases of maxillofacial trauma combined with cervical spine fracture in order to make early diagnosis period diagnosis.

Objective To investigate the characteristic parameters for the assessment of quantitative cervical vertebral maturation for adolescents with normal occlusion.