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Alternative design for radiologic guidance in video thoracoscopic surgery
C E Engeler1, P D Erickson, J H Tashijian
1Department of Radiology, University of Minnesota Hospital, Minneapolis 55455.
Investigative Radiology
|June 1, 1994
Summary
A novel suture-based anchor demonstrates comparable in vitro anchoring to traditional mammographic hookwires, offering a potential alternative for thoracic surgical localization. This new design may reduce complications associated with current hookwire methods.
Area of Science:
- Thoracic Surgery
- Medical Device Design
- Radiologic Guidance
Background:
- Mammographic hookwires are used for radiologic guidance in thoracoscopic surgery.
- Existing hookwire designs have reported high rates of dislodgement (up to 50%) and pneumothorax.
Purpose of the Study:
- To describe a novel alternative anchoring design for radiologic guidance in thoracoscopic surgery.
- To compare the in vitro anchoring capability of the new design with existing mammographic hookwires.
Main Methods:
- A new anchor design, based on T-fasteners, was developed for percutaneous deposition using a 20-Fr needle.
- In vitro anchoring capability was measured and compared to the Hawkin's III mammographic hook wire system.
Main Results:
- The alternative anchoring design exhibited comparable anchoring capabilities to the Hawkin's III mammographic hook wire system.
- Complete dislodgement for both anchor types occurred at approximately 350 gm.
Conclusions:
- Preliminary in vitro results show similar anchoring performance between the new suture-based device and conventional mammographic hookwires.
- The novel design presents potential advantages over hookwires for thoracic surgical localization, warranting further investigation.