Comparison of cemented vs uncemented acetabular component positioning using an imageless navigation system.
Where this comes from
- Record sourced from PubMed, PMID 19056209.
- Also identified by DOI 10.1016/j.arth.2008.09.018.
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Abstract
Hip navigation was used as an assessment tool to compare ability to reproduce trial and definitive acetabular placement in total hip arthroplasty, using cemented and uncemented components. We demonstrated a significant difference in reproducibility between components. Of 20 uncemented cups, 4 (20%) deviated from the target inclination by 5 degrees or more compared to none of 21 in the cemented group (P = .048). Of the 20 uncemented cups, 7 (35%) deviated from the target version by 5 degrees or more compared to none of 21 in the cemented group (P = .003). This may explain higher rates of revision for dislocation with uncemented components. There was also a significant difference between the groups with regard to deviation from planned leg length (P < .001).
Medical subject headings
- Acetabulum
- Arthroplasty, Replacement, Hip
- Hip Joint
- Joint Diseases
- Surgery, Computer-Assisted
Anatomy
- hip
- pelvis