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New Approach for Predictive Measurement of Knee Cartilage Defects with Three-dimensional Printing Based on CT-arthrography: A Feasibility Study

Overview
Journal J Orthop
Specialty Orthopedics
Date 2016 Nov 11
PMID 27829733
Citations 2
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Abstract

Purpose: The aim was to prove the possibility of creating an exact module of knee cartilage defects using 3D printing.

Methods: Defects were created in cadaver knees. CT-arthrography and 3-Tesla MRI were performed. Based on CTA images a model of the cartilage was created using 3D printing. Defect-sizes in the imaging modalities were compared.

Results: Estimated lesion area in 3D model differed approximately 5% comparing to the defect sizes in knees. MRI underestimated the defect on average of 12%, whereas the CTA overestimated the defect about 3%.

Conclusions: We proved the feasibility of creating an accurate module of knee cartilage.

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Three-dimensional mapping of the joint space for the diagnosis of knee osteoarthritis based on high resolution computed tomography: Comparison with radiographic, outerbridge, and meniscal classifications.

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