3D printing gets bigger, faster and stronger

Zastrow, Mark

doi:10.1038/d41586-020-00271-6

Cited by 106 publications

(60 citation statements)

References 11 publications

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“…First, the preoperative planning time was much longer for the SO-PSI group than that for the CO group, due to the addition of numerous preoperative steps, including copying the original CT data, 3D digital model reconstruction, completion of simulated surgery, and PSI 3D printing, which are very time-consuming [25]. Second, the average hospitalization expenses of the SO-PSI group were 1,400 dollars higher than those of the CO group, because the fees for design labor and 3D printing production were high, and are not included in medical insurance in our country; however, with the improvement in health care policies, software upgrades, and the rapid development of 3D printing technology [26,27], completion of these steps is gradually becoming easier and faster for doctors, and the corresponding costs will also gradually reduce.…”

Section: Discussionmentioning

confidence: 90%

Simulated operation combined with patient-specific instrumentation technology is superior to conventional technology for supramalleolar osteotomy: A retrospective comparative study

Wang

Dong-sheng

et al. 2020

Preprint

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Background Over the past seven years, our team has designed a simulated operation combined with patient-specific instrumentation (SO-PSI) assisted supramalleolar osteotomy (SMOT) method and applied it in the clinic. This study aimed to evaluate the differences between SO-PSI technology and conventional operation (CO) technology for SMOT in preoperative planning, intraoperative application, and postoperative curative effect. Methods We retrospectively analyzed SMOT data collected from our hospital between October 2014 and December 2018. Patients (n = 28) were enrolled and divided into CO (n = 17) and SO-PSI (n = 11) groups; mean follow-up time was 33.4 (range, 13 to 59) months. We statistically analyzed and compared perioperative data, accuracy of preoperative planning, and intraoperative application; difference between pre- and post-operative radiologic ankle angles; and changes in American Orthopaedic Foot & Ankle Society (AOFAS) score, visual analogue scale (VAS) score, range of ankle motion, and Takakura stage after surgery. Results All ankle alignments and positions were recovered for both groups. Compared with the CO group, the SO-PSI group had a shorter mean operating time and postoperative hospital stay, a decreased number of fluoroscopy examinations, lower albumin reduction, longer preoperative planning time and preoperative hospital stay, and increased hospitalization expenses. In the SO-PSI group, comparison of ankle angles at preoperative planning and postoperatively revealed good correlation, while this was not the case in the CO group. Mean tibial ankle center discrepancy for the SO-PSI group was 1.86 ± 1.06 mm. On follow-up, all radiologic parameters for the two groups improved significantly; however, the improvement of the tibial anterior surface angle and tibiotalar tilt angle for the SO-PSI group were more obvious than those for the CO group; AOFAS score, VAS score, ankle range of motion, and Takakura stage improved after surgery in both groups; however, the improvements in the SO-PSI group were greater than those in the CO group overall. Conclusions SO-PSI technology can facilitate accurate and rapid preoperative planning for SMOT. In general, compared with conventional technology, SO-PSI has advantages for preoperative planning, intraoperative application, and postoperative curative effect.

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Section: Discussionmentioning

confidence: 90%

Simulated operation combined with patient-specific instrumentation technology is superior to conventional technology for supramalleolar osteotomy: A retrospective comparative study

Wang

Dong-sheng

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…printing production fee need to be increased, and it is not included in the medical insurance in our country. However, with the improvement of health care policies, software upgrades and rapid development of 3D printing technology [26,27], it is gradually getting easier and faster for doctors to complete these steps, and the corresponding costs will gradually drop too.…”

Section: Discussionmentioning

confidence: 99%

Simulated operation combines patient-specific guide technology is superior to conventional technology for supramalleolar osteotomy: a retrospective comparative study

Wang

et al. 2020

Preprint

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Background: Over the past seven years, our team has designed a simulated operation combines patient-specific guide (SO-PSI) assisted supramalleolar osteotomy (SMOT) method and applied it to the clinic. This study aimed to determine the difference between SO-PSI technology and conventional operation (CO) technology for SMOT in preoperative planning, intraoperative application and postoperative curative effect. Methods: We retrospectively analyzed the data of SMOT in our hospital between October 2014 and December 2018; 28 patients were enrolled and divided into CO group (n=17) and SO-PSI group (n=11); the mean follow-up time was 33.4 (range, 13 to 59) months. We analyzed and compared perioperative data, accuracy of preoperative planning and intraoperative application, difference between pre- and post-operative of radiologic ankle angles, and change of AOFAS score, VAS, range of motion of ankle and Takakura stage after operation. Then we performed statistical analyses. Results: All ankle alignments and positions of two groups have been recovered. Compared with CO group, SO-PSI group has a shorter operative time and a postoperative hospital stay, a decreased number of fluoroscopies and a reduction of albumin, a longer preoperative planning time and a preoperative hospital stay and an increased hospitalization expenses. In SO-PSI group, the ankle angles between preoperative planning and postoperative shown good correlation, but not in CO group; the mean tibial ankle center discrepancy of SO-PSI group was 1.86±1.06 mm. After follow-up, all radiologic parameters of two groups significantly improved, but the improvement of tibial anterior surface angle and tibiotalar tilt angle of SO-PSI group were more obvious than that of CO group; AOFAS score, VAS, range of motion of ankle and Takakura stage of two groups improved after operation; but overall the improvements of SO-PSI group were better than the CO group. Conclusions: SO-PSI technology can carry out the preoperative plan accurately and quickly in SMOT; In general, compared with the conventional technology, SO-PSI technology has advantages in preoperative planning, intraoperative application and postoperative curative effect. Keywords: Supramalleolar osteotomy; Simulated operation; Patient-specific guide; Accuracy of preoperative planning; Practicability of application

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“…These innovations are broadening the prospects and opening a new world of design, research, and manufacturing using AM technology that was once viewed as useful only for making small, low-quality prototypes. [ 225 , 226 , 227 , 228 , 229 ]. It is offering designers and engineers the opportunity to push boundaries to get performance out of polymer materials and composite materials that thought not been possible.…”

Section: Conclusion and Future Prospectsmentioning

confidence: 99%

Additive Manufacturing of Polymer Materials: Progress, Promise and Challenges

et al. 2021

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The use of additive manufacturing (AM) has moved well beyond prototyping and has been established as a highly versatile manufacturing method with demonstrated potential to completely transform traditional manufacturing in the future. In this paper, a comprehensive review and critical analyses of the recent advances and achievements in the field of different AM processes for polymers, their composites and nanocomposites, elastomers and multi materials, shape memory polymers and thermo-responsive materials are presented. Moreover, their applications in different fields such as bio-medical, electronics, textiles, and aerospace industries are also discussed. We conclude the article with an account of further research needs and future perspectives of AM process with polymeric materials.

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3D printing gets bigger, faster and stronger

Cited by 106 publications

References 11 publications

Simulated operation combined with patient-specific instrumentation technology is superior to conventional technology for supramalleolar osteotomy: A retrospective comparative study

Simulated operation combined with patient-specific instrumentation technology is superior to conventional technology for supramalleolar osteotomy: A retrospective comparative study

Simulated operation combines patient-specific guide technology is superior to conventional technology for supramalleolar osteotomy: a retrospective comparative study

Additive Manufacturing of Polymer Materials: Progress, Promise and Challenges

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