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Treatment of Intercondylar Humeral Fractures With 3D-Printed Osteosynthesis Plates

View Article: PubMed Central - PubMed

ABSTRACT

The aim of the study was to evaluate the efficacy custom 3D-printed osteosynthesis plates in the treatment of intercondylar humeral fractures.

Thirteen patients with distal intercondylar humeral fractures were randomized to undergo surgery using either conventional plates (n = 7) or 3D-printed plates (n = 6) at our institution from March to October 2014. Both groups were compared in terms of operative time and elbow function at 6 month follow-up.

All patients were followed-up for a mean of 10.6 months (range: 6–13 months). The 3D-printing group had a significantly shorter mean operative time (70.6 ± 12.1 min) than the conventional plates group (92.3 ± 17.4 min). At the last follow-up period, there was no significant difference between groups in the rate of patients with good or excellent elbow function, although the 3D-printing group saw a slightly higher rate of good or excellent evaluations (83.1%) compared to the conventional group (71.4%).

Custom 3D printed osteosynthesis plates are safe and effective for the treatment of intercondylar humeral fractures and significantly reduce operative time.

No MeSH data available.


3D printed models of the injured elbow (A) and the mirrored contralateral elbow (B).
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Figure 2: 3D printed models of the injured elbow (A) and the mirrored contralateral elbow (B).

Mentions: The humeri of both the injured and contralateral sides were scanned with CT (1 mm slice intervals) and saved using the DICOM 3.0 format. The data were then transferred to Mimics v.11.1 software (Materialise, Ann Arbor, MI) for design of the plate. The Region Growing command was used to establish the Mask of the humerus. The pixel set of the humerus was processed using the Calculate 3D form mask command to produce the mirror image of the contralateral side, which was used as the 3D model of the injured side. The Mask pixel set of each fragment was established and the 3D Object was calculated using the Mask. The 3D model of the injured elbow was produced using Unite Boolean calculation. The design data was then transferred to the 3D printer (SRP400B, Huasen 3D Printing Research, Changzhou, China) and exact 1:1 models of the injured elbow and the mirrored contralateral elbow were fabricated (Figure 2). The surface of the 3D model was then polished using the Smooth function of the FEA module to reduce the signal noise in the 3D images.


Treatment of Intercondylar Humeral Fractures With 3D-Printed Osteosynthesis Plates
3D printed models of the injured elbow (A) and the mirrored contralateral elbow (B).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4998254&req=5

Figure 2: 3D printed models of the injured elbow (A) and the mirrored contralateral elbow (B).
Mentions: The humeri of both the injured and contralateral sides were scanned with CT (1 mm slice intervals) and saved using the DICOM 3.0 format. The data were then transferred to Mimics v.11.1 software (Materialise, Ann Arbor, MI) for design of the plate. The Region Growing command was used to establish the Mask of the humerus. The pixel set of the humerus was processed using the Calculate 3D form mask command to produce the mirror image of the contralateral side, which was used as the 3D model of the injured side. The Mask pixel set of each fragment was established and the 3D Object was calculated using the Mask. The 3D model of the injured elbow was produced using Unite Boolean calculation. The design data was then transferred to the 3D printer (SRP400B, Huasen 3D Printing Research, Changzhou, China) and exact 1:1 models of the injured elbow and the mirrored contralateral elbow were fabricated (Figure 2). The surface of the 3D model was then polished using the Smooth function of the FEA module to reduce the signal noise in the 3D images.

View Article: PubMed Central - PubMed

ABSTRACT

The aim of the study was to evaluate the efficacy custom 3D-printed osteosynthesis plates in the treatment of intercondylar humeral fractures.

Thirteen patients with distal intercondylar humeral fractures were randomized to undergo surgery using either conventional plates (n = 7) or 3D-printed plates (n = 6) at our institution from March to October 2014. Both groups were compared in terms of operative time and elbow function at 6 month follow-up.

All patients were followed-up for a mean of 10.6 months (range: 6–13 months). The 3D-printing group had a significantly shorter mean operative time (70.6 ± 12.1 min) than the conventional plates group (92.3 ± 17.4 min). At the last follow-up period, there was no significant difference between groups in the rate of patients with good or excellent elbow function, although the 3D-printing group saw a slightly higher rate of good or excellent evaluations (83.1%) compared to the conventional group (71.4%).

Custom 3D printed osteosynthesis plates are safe and effective for the treatment of intercondylar humeral fractures and significantly reduce operative time.

No MeSH data available.