Robot-assisted total hip arthroplasty: Clinical outcomes and complication rate

Int J Med Robot. 2018 Aug;14(4):e1912. doi: 10.1002/rcs.1912. Epub 2018 May 15.


Background: The purpose of this study was to report minimum 2-year outcomes and complications for robotic-arm-assisted total hip arthroplasty (THA).

Methods: Data were prospectively collected and retrospectively reviewed between June 2011 and April 2014. Inclusion criteria were primary robotic-arm-assisted THAs treating idiopathic osteoarthritis with ≥ 2-year follow-up. Demographics, operating time, complications, 2-year outcome scores and satisfaction, and subsequent surgeries were recorded.

Results: There were 181 cases eligible for inclusion, of which 162 (89.5%) had minimum 2-year follow-up. At the latest follow-up, the mean visual analogue scale was 0.7, satisfaction was 9.3, Harris hip score was 91.1 and forgotten joint score was 83.1. Six (3.7%) intraoperative complications and six (3.7%) postoperative complications were reported. No leg length discrepancies (LLDs) or dislocations were reported.

Conclusions: Robotic-arm-assisted THA demonstrates favourable short-term outcomes and does not result in a higher complication rate compared to non-robotic THA as reported by the literature.

Keywords: clinical outcomes; complications; forgotten joint score; robotic-arm assisted; total hip arthroplasty.

MeSH terms

  • Aged
  • Arthroplasty, Replacement, Hip / adverse effects
  • Arthroplasty, Replacement, Hip / methods*
  • Computer Simulation
  • Female
  • Humans
  • Imaging, Three-Dimensional
  • Intraoperative Complications / etiology
  • Male
  • Middle Aged
  • Models, Anatomic
  • Osteoarthritis, Hip / diagnostic imaging
  • Osteoarthritis, Hip / surgery
  • Postoperative Complications / etiology
  • Prospective Studies
  • Retrospective Studies
  • Robotic Surgical Procedures / adverse effects
  • Robotic Surgical Procedures / methods*
  • Tomography, X-Ray Computed
  • Treatment Outcome