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Balanced cable bone transport of the tibia using automated motorized struts
Elizabeth P Wellings1,2, James A Blair1
1Department of Orthopedic Surgery, Emory University at Grady Memorial Hospital, Atlanta, GA.
Summary
Automated struts can power balanced cable transport (BCT) for tibial bone transport, offering potential benefits of automation. However, complications such as strut malfunctions and pin tract infections were observed.
Area of Science:
- Orthopedic surgery
- Biomedical engineering
- Regenerative medicine
Background:
- Tibial bone defects require complex reconstruction.
- Balanced Cable Transport (BCT) is a method for bone transport.
- Automation in orthopedic devices can improve patient outcomes.
Purpose of the Study:
- To evaluate the feasibility and outcomes of using automated struts to power BCT for tibial bone transport.
- To assess the benefits and complications associated with automated BCT.
Main Methods:
- Retrospective observational case series of 7 patients with tibial bone defects.
- Analysis of tibial BCTs utilizing automated struts for bone transport.
- Evaluation of union rate, complications, external fixation index, bone healing index, and mechanical alignment.
Main Results:
- Automated struts successfully powered all 7 BCTs, with an average defect size of 102 mm.
- The average bone healing index was 21.9 days/cm for bifocal BCT and 13.7 days/cm for trifocal BCT.
- Complications included strut malfunctions (4 patients), pin tract infections (4 patients), and unplanned returns to the operating room (2 patients).
Conclusions:
- Automated struts are a feasible option for powering BCT in tibial bone transport.
- This technology combines automation advantages with BCT benefits, potentially improving ease of use and compliance.
- Further research is needed to optimize automated strut function and minimize complications in BCT procedures.
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