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Acetabular revision arthroplasty using jumbo cups: an experience in Asia
Cheng-Yu Fan1, Wei-Ming Chen, Ocar K Lee
1Department of Orthopaedics, Taipei Medical University Hospital, 250 Wu-Xin Street, Taipei City, Taiwan. dennisfann@yahoo.com.tw
Archives of Orthopaedic and Trauma Surgery
|November 7, 2007
Summary
Cementless jumbo cups offer a reliable solution for acetabular bone defects in revision hip arthroplasty. This study shows a 94.5% 5-year survival rate, demonstrating their effectiveness and longevity.
Area of Science:
- Orthopedic Surgery
- Biomaterials Engineering
- Reconstructive Surgery
Background:
- Acetabular bone defects present significant challenges in revision hip arthroplasty.
- Cementless jumbo cup reconstruction is a recognized method for addressing these deficiencies.
Purpose of the Study:
- To evaluate the outcomes of cementless jumbo cups in managing acetabular bone defects.
- To assess the radiographic results and implant survival rates in a cohort of Asian patients.
Main Methods:
- A retrospective study of 47 revision hip arthroplasties using jumbo acetabular cups (men: 64 mm, women: 60 mm).
- Follow-up averaged 65 months, with analysis of radiographic outcomes, hip center migration, and implant survival via Kaplan-Meier analysis.
Main Results:
- A 5-year survival rate of 94.5% was estimated, with only three implant failures requiring re-revision.
- Improved vertical hip center position was observed post-surgery.
- 17% of cups showed radiolucent lines, but without compromising stability; dislocation occurred in 11%.
Conclusions:
- Cementless jumbo cup reconstruction provides stability and longevity for acetabular defects, even with limited bone contact.
- This technique is a reliable and straightforward option for complex acetabular reconstructions.
