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A new bone-cutting approach for minimally invasive surgery
Jeffrey Minnaard1, Roeland P Kleipool2, Wim Baars3
1Department of BioMechanical Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, the Netherland.
Medical Engineering & Physics
|January 19, 2021
Summary
A new minimally invasive surgery (MIS) bone-cutting system was developed using a steerable wire passer and saw guide. This system enables precise bone cutting with reduced tissue damage in cadaveric studies.
Area of Science:
- Orthopaedic Surgery
- Biomedical Engineering
- Minimally Invasive Techniques
Background:
- Bone resection is common in orthopaedic procedures.
- Conventional saws cause large incisions and tissue damage.
- Need for minimally invasive bone-cutting solutions.
Purpose of the Study:
- Develop an improved, minimally invasive bone-cutting system.
- Address limitations of current bone-cutting methods.
Main Methods:
- Designed a reusable sawing system for Minimally Invasive Surgery (MIS).
- System includes a steerable wire passer and tissue-saving wire saw guide.
- Tested on cadaveric tibia and calcaneus.
Main Results:
- Successfully created a steerable Nitinol needle for wire positioning.
- Successfully used the wire saw system to cut cadaveric tibia and calcaneus.
- Demonstrated feasibility of MIS bone cutting with minimal tissue damage.
Conclusions:
- A novel MIS bone-cutting system is feasible and safe.
- The system minimizes damage to surrounding tissues.
- Further optimization needed for needle stability and cutting smaller bones.
Keywords:
Advanced MIS surgeryBone-cuttingCompliant instrumentsMinimally invasive orthopedicsNitinolSteering needleWire saw
