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Updated: Jun 25, 2026

3D Planning and Printing of Patient Specific Implants for Reconstruction of Bony Defects

3D Planning and Printing of Patient Specific Implants for Reconstruction of Bony Defects

Published on: August 4, 2020

The engineering of patient-specific, anatomically shaped, digits.

Peng Wang¹, Jiang Hu, Peter X Ma

¹Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI 48109-1078, USA.

|February 11, 2009

Summary

This study developed a novel method to create poly(L-lactide) nanofibrous scaffolds with controlled nano-, micro-, and macro-geometric structures. These scaffolds support osteoblast cell growth and differentiation for digit bone tissue engineering.

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Area of Science:

Biomaterials Engineering
Tissue Engineering
Cell Biology

Background:

Scaffold geometry at multiple scales influences cell behavior.
Controlling scaffold architecture is crucial for effective tissue regeneration.

Purpose of the Study:

To develop an integrated process for fabricating scaffolds with controllable nano-, micro-, and macro-geometric structures.
To assess the suitability of these scaffolds for digit bone tissue engineering.

Main Methods:

Phase-separation method for poly(L-lactide) nanofibrous (NF) scaffold preparation.
Paraffin spheres used to control micro-scale pore size.
3D printing of wax molds for macro-scale shape definition (human digit).
Stereolithography files generated from National Library of Medicine's Visual Human Project data.

Related Experiment Videos

Last Updated: Jun 25, 2026

3D Planning and Printing of Patient Specific Implants for Reconstruction of Bony Defects

3D Planning and Printing of Patient Specific Implants for Reconstruction of Bony Defects

Published on: August 4, 2020

Main Results:

Successfully fabricated NF PLLA scaffolds with controllable multi-scale geometric structures and a human digit shape.
Demonstrated successful seeding and culture of osteoblast cell line MC3T3-E1 within the scaffolds.
Characterized cell proliferation, differentiation, and biomineralization, indicating scaffold suitability.

Conclusions:

The integrated fabrication process allows for precise control over scaffold geometry at multiple length scales.
The developed scaffolds support osteoblast function, showing promise for digit bone tissue engineering applications.