From Severe Bone Defects to Functional Recovery: The Role of Patient-Specific 3D Implants in Revision Total Hip Arthroplasty

Abstract

Revision total hip arthroplasty remains one of the most challenging procedures in modern orthopedic surgery, particularly in the presence of extensive bone defects. The study included 7 patients with acetabular defects classified as Paprosky type IIIA–IIIB[1-2]. In all cases, positive clinical outcomes were achieved, including restoration of anatomy, stable implant fixation, and improvement in functional status. The use of patient-specific implants significantly enhances the accuracy of reconstruction; however, its application is limited by high cost and restricted availability of the technology