Alexandra Petrakos

About

Dr. Alexandra Petrakos is a leading orthopedic researcher whose work has fundamentally advanced the precision of total hip arthroplasty (THA). Her primary research focuses on the intersection of surgical technique, patient-specific anatomy, and emerging technologies, particularly robotic-assisted computer navigation. Dr. Petrakos’s most influential contribution is her landmark 2015 study analyzing component positioning accuracy across 1,980 THA cases, which demonstrated the superiority of robotic guidance over manual techniques and has been cited over 156 times. She further established the learning curve for robotic-assisted THA in a highly cited 2014 paper, providing essential benchmarks for surgical training. Her work has been particularly impactful in challenging patient populations; a 2015 comparison study (75 citations) proved that robotic navigation maintains acetabular cup positioning accuracy even in obese patients, where traditional methods often fail. By consistently validating that intraoperative robotic data accurately predicts postoperative radiographic outcomes, Dr. Petrakos has provided the evidence base for a paradigm shift toward technology-enhanced precision in joint replacement, making her a pivotal figure in modern orthopedic surgery.

Research Focus

Key Achievements

Top Papers

1. 1
   Accuracy of Component Positioning in 1980 Total Hip Arthroplasties: A Comparative Analysis by Surgical Technique and Mode of Guidance

   156 citations · 2015
2. 2
   The Learning Curve Associated With Robotic-Assisted Total Hip Arthroplasty

   113 citations · 2014
3. 3
   Does Robotic-Assisted Computer Navigation Affect Acetabular Cup Positioning in Total Hip Arthroplasty in the Obese Patient? A Comparison Study

   75 citations · 2015
4. 4
   Accuracy of Component Placement in Robotic-Assisted Total Hip Arthroplasty

   60 citations · 2016

Key Collaborators

Contact & Links