The main problem with the treatment for joint bone injury is the lack of accurate joint models for guidance in the repairing surgery. In this paper

we aim to study modeling and visualization techniques for quantifying osteoarticular defects accurately. The key techniques such as the enhancement of bone image

multi-modal image fusion

segmentation

modeling and measurement of bone structure

can visually show the three-dimensional geometry of the defect structure and provide a quantitative standard for doctors to diagnose and treat articular defects. The involved techniques are analyzed in depth

and the result shows the method above can provide accurate three-dimensional quantitative models. The CT and MRI based three-dimensional modeling provide an accurate and effective method for the evaluation of osteoarticular defects. Therefore this method has a great value in assisting doctors to diagnose the defect of the glenoid and humeral head of the bone joint. The future development of this technology plays an important role to repair osteoarticular defects.