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3D Printing Technology in Planning Thumb Reconstructions with Second Toe Transplant
Cheng-Wu Zang1, Jian-Lei Zhang1, Ze-Zu Meng1
1Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
Orthopaedic Surgery
|June 10, 2017
Summary
3D printing aids thumb reconstruction using toe transplants, improving outcomes and minimizing donor site damage. This technology enhances surgical planning for better thumb function and appearance.
Area of Science:
- Orthopedic surgery
- Plastic surgery
- Biomedical engineering
Background:
- Thumb defects pose significant functional and aesthetic challenges.
- Traditional thumb reconstruction methods have limitations in optimizing outcomes.
Purpose of the Study:
- To evaluate the efficacy of 3D printing in preoperative planning for thumb reconstruction using second toe transplants.
Main Methods:
- Five patients with thumb defects underwent reconstruction with wrap-around flaps and second toe transplants.
- 3D printing technology and surgical simulation software were used for detailed planning of donor and recipient sites.
- Models were created to guide flap design, bone grafting, and vessel/nerve anastomosis.
Main Results:
- All reconstructed thumbs survived, with one case experiencing partial flap necrosis managed conservatively.
- Functional outcomes included good thumb opposition, extension, and flexion.
- Sensory recovery was assessed, with two-point discrimination averaging 9.6 mm.
- Overall, four cases were rated excellent and one good, achieving a 100% success rate.
Conclusions:
- 3D printing enables precise modeling of donor and recipient sites for thumb reconstruction.
- This technology can reduce operative time and optimize functional and aesthetic results.
- 3D printing facilitates minimized damage to the donor site during toe-to-thumb transplant surgery.
