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Revision total hip arthroplasty using a cementless acetabular component. Technique and results
C D Silverton1, A G Rosenberg, M B Sheinkop
1Department of Orthopaedic Surgery, Rush-Presbyterian-St Luke's Medical Center, Chicago, IL 60612, USA.
Clinical Orthopaedics and Related Research
|October 1, 1995
Summary
Revision acetabular surgery using cementless hemispherical components shows favorable midterm outcomes. This technique demonstrates a low revision rate for aseptic loosening, suggesting its effectiveness in hip reconstruction.
Area of Science:
- Orthopedic Surgery
- Biomaterials Engineering
- Reconstructive Surgery
Background:
- Acetabular revision surgery addresses aseptic loosening of hip implants.
- Cementless hemispherical components offer an alternative to cemented options.
- Evaluating long-term outcomes of these components is crucial for surgical decision-making.
Purpose of the Study:
- To assess the midterm efficacy of cementless hemispherical acetabular components in revision surgery.
- To compare outcomes with existing acetabular revision techniques.
- To analyze revision rates and radiographic findings.
Main Methods:
- A retrospective review of 138 acetabular revisions in 132 patients using cementless hemispherical components.
- Components featured titanium mesh coating and supplemental screw fixation.
- Follow-up included clinical assessment and radiographic analysis.
Main Results:
- 111 patients (115 hips) had a mean follow-up of 100 months.
- A 11% revision rate was observed, with no revisions for aseptic loosening.
- Radiolucency was present in some cases, but osteolysis was infrequent.
Conclusions:
- Cementless porous-coated hemispherical fiber-metal components yield superior results compared to cemented acetabular revisions.
- This technique demonstrates durability and a low failure rate for aseptic loosening.
- The findings support the use of cementless components in acetabular revision surgery.