The hemispherical porous acetabular component fixed by press-fit technique and additional screws

Area of Science:

• Orthopedic Surgery
• Biomaterials Science
• Medical Device Engineering

Background:

• The Harris-Galante acetabular component is a porous-coated, cementless device used in total hip arthroplasty.
• Evaluating the long-term performance of such implants is crucial for understanding their efficacy and durability.

Purpose of the Study:

• To assess the clinical and radiological outcomes of the Harris-Galante porous-coated acetabular component.
• To evaluate implant stability, bone integration, and the incidence of complications over a 5 to 9-year follow-up period.

Main Methods:

• Retrospective analysis of 70 primary total hip arthroplasties using the Harris-Galante acetabular component.
• Clinical and radiological review focusing on component migration, fixation, bone gaps, radiolucent lines, and osteolysis.

Main Results:

• No detectable component migration or positional changes were observed.
• While initial bone gaps and radiolucent lines were noted in some cases, they stabilized postoperatively.
• Osteolysis of the acetabulum occurred in 17.1% of hips, but no components required revision due to aseptic loosening.

Conclusions:

• The hemispheric porous-coated acetabular components demonstrated good clinical results and stable fixation.
• Press-fit and screw fixation provided reliable cementless acetabular component performance in the medium term.