The Official journal of the China Association of Rehabilitation of Disabled Persons and the 88th Hospital of PLA

Composite Impact Factor:

0. 948 (2015)

Total citation frequency: 3868 (2015)


ISSN 1005-8478

CN 37-1247/R

Application of 3D printing technology in revision hip replacement for Paprosky type III acetabular bone defect

Author : LU Li-xiang1, KONG Hao-ran1, LV Pang1, WANG De-sheng1, ZHANG Dong-fang1, LI Ang1, ZHENG Jia2.     
Working unit : 1. Department of Orthopaedics, People??s Hospital of Zhengzhou University, Zhengzhou 450000, China; 2. Department of Orthopaedics, People?'s Hospital of Henan Province, Zhengzhou 450000, China
Page : 2295-2298
Key words : 3D printing technology, Paprosky type III acetabular bone defect, revision total hip arthroplasty

    Abstract: [Objective] To introduce the 3D printing technology applied in revision hip replacement for Paprosky type III acetabular bone defects. [Methods] From June 2014 to December 2016, 14 patients underwent revision hip replacement for primary THA failure accompanied with Paprosky type III acetabular bone defects. According to the CT scanning preoperatively, a digital model was created by CAD software. After that the entity model of the pelvis was made by 3D printing to mimic surgical operation. During the revision surgery, an individualized titanium filling block previously made by 3D printing was implanted into the acetabular bone defects to restore the the anatomical hip rotation center, and then the acetabular component was enclosed with proper initial stability. [Results] The postoperative radiographs revealed that perfect bone defect filling, righteous reconstruction of the rotation center and proper position of acetabular component were acquired in all patients. At 13 months after operation, the clinical outcomes proved satisfactory, associated with Harris score of (86.93± 4.06) and SF-36 score of (95.07± 6.34) . [Conclusion] The 3D printing technology is a powerful approach to mimic revision procedure before operation, supply an individualized titanium implants for filling bone defects, and improve the surgical efficacy and patient's satisfaction in revision hip replacement for Paprosky type III acetabular bone defects.


summary:
Application of 3D printing technology in revision hip replacement for Paprosky type III acetabular bone defect   
LU Li-xiang1, KONG Hao-ran1, LV Pang1, WANG De-sheng1, ZHANG Dong-fang1, LI Ang1, ZHENG Jia2.
Orthop J Chin,2018,26(24):   2295-2298