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Porous-coated cementless acetabular components without bulk bone graft in revision surgery
Hiroshi Ito1, Hiromasa Tanino, Yasuhiro Yamanaka
1Department of Orthopedic Surgery, Asahikawa Medical College, Asahikawa, Japan.
The Journal of Arthroplasty
|December 22, 2009
Summary
Porous-coated acetabular components in revision hip surgery showed good long-term results. Without bone grafting, 7% of components required revision, with no aseptic loosening observed.
Area of Science:
- Orthopedic surgery
- Biomaterials science
Background:
- Revision hip surgery often involves acetabular component replacement.
- Porous-coated implants are used to promote bone ingrowth.
- The necessity of bone grafting for these implants is debated.
Purpose of the Study:
- To report long-term outcomes of porous-coated acetabular components.
- To evaluate the efficacy of revision hip surgery without bone grafting.
- To assess component survival and reasons for failure.
Main Methods:
- Retrospective review of 66 patients (75 hips) undergoing revision hip surgery.
- Porous-coated acetabular components were implanted without bulk bone graft.
- Follow-up averaged 15.6 years (range, 10-20 years).
Main Results:
- Seven (7%) acetabular components required removal or repeat revision.
- Reasons for revision included infection (2) and liner dislodgement (1).
- No component was revised for aseptic loosening; none were categorized as loose.
Conclusions:
- Porous-coated acetabular components can achieve durable fixation in revision hip arthroplasty without bone grafting.
- Long-term component survival is high, with low rates of aseptic loosening.
- Infection and mechanical complications remain potential causes for revision.
