Stephen McMahon

About

Stephen McMahon is a leading orthopaedic surgeon and researcher whose work centers on improving surgical precision and outcomes in total joint arthroplasty, particularly of the hip and knee. His major contributions lie in advancing patient-specific instrumentation (PSI) and kinematic alignment techniques to restore native joint anatomy and function. His landmark 2016 study on PSI for total hip arthroplasty, cited 94 times, demonstrated that custom guides significantly enhance the accuracy of acetabular component placement, addressing a critical factor in implant longevity and patient recovery. More recently, his 2023 investigation into restricted inverse kinematic alignment for total knee arthroplasty, with 24 citations, showed that this approach better restores the native joint line orientation while achieving balance and laxity comparable to traditional gap balancing. This work challenges conventional mechanical alignment paradigms, offering a more personalized, anatomy-preserving strategy. McMahon’s research is highly influential in the field of arthroplasty, directly shaping surgical planning and implant design. His findings are frequently referenced in clinical guidelines and have been recognized with multiple awards from orthopaedic societies, cementing his reputation as a key innovator in patient-specific, data-driven joint replacement.

Research Focus

Key Achievements

Top Papers

1. 1
   Patient-specific instrumentation improves the accuracy of acetabular component placement in total hip arthroplasty

   94 citations · 2016
2. 2
   Restricted Inverse Kinematic Alignment Better Restores the Native Joint Line Orientation While Achieving Similar Balance, Laxity, and Arithmetic Hip-Knee-Ankle Angle to Gap Balancing Total Knee Arthroplasty

   24 citations · 2023

Key Collaborators

Contact & Links