Does Robotic-Assisted Computer Navigation Affect Acetabular Cup Positioning in Total Hip Arthroplasty in the Obese Patient? A Comparison Study
Authors
Gupta A, Redmond JM, Hammarstedt JE, Petrakos AE, Vemula SP, Domb BG
DOI: 10.1016/j.arth.2015.06.062
Purpose
To evaluate whether robotic-assisted computer navigation improves the accuracy of acetabular cup positioning in total hip arthroplasty (THA) among obese patients.
Methods
105 patients undergoing THA with robotic-assisted navigation were grouped by BMI (<30, 30–35, >35). Acetabular cup inclination and version were measured and compared across BMI groups.
Key Findings
- No statistically significant differences in cup inclination or version among BMI groups.
- Robotic navigation consistently placed cups within safe zones regardless of obesity level.
Conclusion
Robotic-assisted navigation ensures precise acetabular component placement in THA across different obesity levels.
What This Means for Patients
Obese patients undergoing hip replacement can expect accurate implant positioning using robotic assistance, potentially reducing complication risks related to implant malposition.