Ten-Year Functional Outcomes Following Robotic-Assisted Total Hip Arthroplasty: A Case Series
Author(s):Domb BG, Quesada-Jimenez R, Barda SR, Defort TM, Kuhns BD, Kahana-Rojkind AH.
DOI Link: 10.1016/j.arth.2026.01.052
Background
Robotic-assisted total hip arthroplasty (rTHA) has been introduced to improve accuracy of component positioning; however, long-term (≥10-year) clinical outcome data remain limited.
Methods
This prospective case series evaluated patients undergoing primary robotic-assisted THA between 2011 and 2015 with a minimum 10-year follow-up. A total of 215 hips met inclusion criteria. Outcomes included validated patient-reported outcome measures (HHS, HOOS-JR, FJS-12, VAS pain, satisfaction) and radiographic parameters including cup position, inclination, version, leg length discrepancy, and safe zone placement (Lewinnek and Callanan criteria). Survivorship was assessed based on revision surgery.
Key Findings
At 10-year follow-up, patients demonstrated excellent functional outcomes:
- HHS: 93.0 ± 12.6
- HOOS-JR: 89.1 ± 16.1
- FJS-12: 85.2 ± 22.4
- VAS pain: 1.0 ± 1.9
- Satisfaction: 9.1 ± 1.8
Survivorship free of revision was 97.2% (6 revisions total; 2.8%).
- Infection: 1.9%
- Aseptic loosening: 0.5%
- Leg-length discrepancy: 0.5%
Radiographically, 91.1% of cups were within the Lewinnek safe zone and 87.4% within the Callanan safe zone. No dislocations or instability events were reported.
Conclusion
Robotic-assisted THA demonstrates durable 10-year survivorship, excellent patient-reported outcomes, and high accuracy of component positioning with a low revision rate.
What Does This Mean for Providers?
Robotic assistance in THA may enhance reproducibility of implant positioning while maintaining excellent long-term clinical outcomes. At 10 years, survivorship remains high with minimal complications and no instability events, supporting the durability and technical reliability of robotic-assisted arthroplasty in appropriately selected patients.