[Treatment of Paprosky type Ⅲ severe acetabular bone defects with two revision methods].

OBJECTIVE: To investigate the mid-term clinical efficacy of two acetabular revision methods in the treatment of severe Paprosky type Ⅲ acetabular bone defects. METHODS: Clinical data of patients with severe acetabular defects who underwent surgical treatment were collected from July 2012 to March 2019,including 8 males and 11 females,all belong to Paprosky type Ⅲand underwent unilateral hip joint revision;12 cases(Group A) underwent revision using tantalum metal augment combined with porous biological tantalum cup,and 7 cases(Group B) underwent revision using titanium mesh compression bone grafting combined with cement prosthesis. Record the patient's surgical times,bleeding volumes,and complications,evaluate preoperative and postoperative X-rays as well as Harris scores. RESULTS: