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Cementless tibial fixation in TKA: not a second coming
John J Callaghan1, Steve S Liu
1University of Iowa, Iowa City, IA 52242, USA. john-callaghan@uiowa.edu
Orthopedics
|September 16, 2010
Summary
Cemented total knee arthroplasty (TKA) demonstrates excellent long-term durability and a low revision rate for aseptic loosening. Modern TKA designs further improve fixation, supporting cement as the preferred method.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
Background:
- Cemented total knee arthroplasty (TKA) has a long history with proven durability.
- Previous studies show low revision rates for aseptic loosening in cemented TKA.
Purpose of the Study:
- To evaluate the long-term durability and fixation methods of cemented total knee arthroplasty.
- To assess the incidence of aseptic loosening in contemporary TKA designs.
Main Methods:
- Review of long-term follow-up studies on cemented TKA.
- Analysis of revision rates for aseptic loosening in various TKA systems.
- Evaluation of component design and material advancements.
Main Results:
- Revision rates for aseptic loosening were 3.5% (20-year follow-up) for older systems.
- Contemporary rotating platform TKA showed 0% revision for aseptic loosening (20-year follow-up).
- Kinematic cruciate-retaining TKA had a 1.8% revision rate for aseptic loosening (15-year follow-up).
Conclusions:
- Cemented fixation in TKA is durable, forgiving, and accommodates bone defects.
- Advancements in tibial trays and polyethylene reduce osteolysis risk.
- Cement fixation remains the preferred choice for TKA due to its reliability and forgiveness.