Abstract: Objective To explore the effect of 3D printing technique in clinical PBL teaching of complex intertrochanteric fractures in order to improve the overall quality of orthopedic teaching. Methods A total of 28 students were included in the orthopedic clinical program. The random number method was used and the students were divided into 2 groups:traditional teaching method group and new teaching method group (3D printing technique, PBL teaching method). The teaching method was explained by the entity, and then the procedure was followed. The effects of the two groups of teaching methods were compared, including the student's academic performance, comprehensive ability self-assessment data. Results Compared with the traditional teaching method group, the scores of the new teaching method group were higher, and the difference was statistically significant (P<0.05). Conclusion The new teaching method of PBL teaching method with 3D printing technique has good teaching effect in clinical teaching of complex femoral intertrochanteric fractures.

Key words: 3D printing technique, Complex femoral intertrochanteric fractures, PBL teaching, Orthopedic teaching