Fixation of fractures of the proximal humerus in elderly patients with the bone cement add plate;

Locking proximal humerus plate for treatment of comminuted fracture of proximal humerus;

Measurement of the proximal humerus and its significance during shoulder arthroplasty;

Artificial caput humeralis substitution treatment on proximal humerus tumor;

Correlative analysis of parameters of distal end of humerus and the personalized design for humerus prosthesis;

To establish the best configuration of fixation for distal humerus fracture.

Objective To determine the efficacy of LCP Metaphyseal Plates in the treatment of fractures of the distal humerus.

Objective: To explore the clinical value and outcomes of the treatment for comminuted fractures of proximal humeral by using replacement of humeral head prosthesis, and to find out the suitable method for treating the comminuted fractures of proximal humeral.

Objective to approach the advantageous and disadvantageous oftwo different operative routes in treatments of supracondylar humerusfractures in children.

Objective: To sum-up recently study and development of therapy in the fracture of supracondylar humerus in children, Then analyze modified percutaneous fixation with kirschner wire in the factors which have effects on cure and give scientific support to the therapy of healing the fracture of supracondylar humerus in children.