[Treatment of the aged wounded patients evacuated from Wenchuan earthquake area].

Objective: To explore the therapeutic strategies of the aged wounded patients evacuated from Wenchuan earthquake area.

Methods: The characteristics of traumatic conditions and therapeutic methods of 14 aged wounded patients evacuated from Wenchuan earthquake area were retrospectively analyzed.

Results: All cases accepted the effective treatment for 4 to 8 weeks and attained good recovery.

Injectable bioactive calcium-magnesium phosphate cement for bone regeneration.

Novel injectable and degradable calcium-magnesium phosphate cement (CMPC) with rapid-setting characteristic was developed by the introduction of magnesium phosphate cement (MPC) into calcium phosphate cement (CPC). The calcium-magnesium phosphate cement prepared under the optimum P/L ratio exhibited good injectability and desired workability. It could set within 10 min at 37 degrees C in 100% relative humidity and the compressive strength could reach 47 MPa after setting for 48 h, indicating that the prepared cement has relatively high initial mechanical strength.

Biocompatibility and osteogenicity of degradable Ca-deficient hydroxyapatite scaffolds from calcium phosphate cement for bone tissue engineering.

Ca-deficient hydroxyapatite (CDHA) porous scaffolds were successfully fabricated from calcium phosphate cement (CPC) by a particle-leaching method. The morphology, porosity and mechanical strength as well as degradation of the scaffolds were characterized. The results showed that the CDHA scaffolds with a porosity of 81% showed open macropores with pore sizes of 400-500mum.

[Reconstruction of condyle in treatment of refractory condylar nonunion and defect of humerus].

Objective: To discuss the strategy of condylar reconstruction in the treatment of refractory condylar nonunion and defect of humerus.

Methods: From September 1998 to September 2005, 18 patients with refractory condylar nonunion concomitant withdefect of humerus were treated. The series included 12 males and 6 females, aged 18 to 60 years.