ABSTRACT
BACKGROUND:
At present, the traditional
orthosis manufacturing
technology needs a lot of
time and materials. The larger expansion coefficient of
gypsum and the springback of material
cooling will reduce the accuracy of
orthosis. Therefore, the application of
computer-aided design technology and
three-dimensional printing technology in the field of
orthosis is booming.
OBJECTIVE:
Based on the concept of multidisciplinary collaboration, a new
scoliosis orthopedic
device was designed and manufactured by optical scanning,
computer-aided design and
3D printing, and its correction effect was evaluated.
METHODS:
Seven
adolescent idiopathic
scoliosis patients,
who were treated in the
Three-Dimensional Printing Center of Ninth People’s
Hospital Affiliated to Shanghai Jiao Tong
University between March and October 2019, were enrolled in this study. The
patient’s trunk was scanned with three-dimensional scanner. Virtual orthopedic
treatment was conducted in Rodin4D
software. Data were imported into
Magics to carry out the hollow out design of
orthosis, which was made by
three-dimensional printing technology. Seven
patients were followed up for 6 months after wearing orthopedic
devices for more than 20 hours every day. The
scoliosis before and after intervention was analyzed to observe the
clinical efficacy. RESULTS AND
CONCLUSION:
(1) The contactless iPad scanner was successfully used for
mold taking. The orthopedic model was designed in the French Rodin4D
software, and the orthopedic model was hollowed-out by the
Magics software. A suitable three-dimensional printed personalized
scoliosis orthopedic
device was produced through
three-dimensional printing. (2) All the seven
patients were improved significantly. Cobb angle before
treatment was (29.43±7.68)°, and the angle of trunk inclination was (11.57±2.76)°. At 6 months
after treatment, Cobb angle was (8.71±5.96)° (corrected 72%), and the angle of trunk inclination was (3.57±2.57)° (corrected 70%). The Cobb angle and angle of trunk inclination were significantly different before and
after treatment (P < 0.01). (3) The digital
medicine and
3D printing technology are applied in the field of
rehabilitation AIDS, based on the concept of multidisciplinary collaboration. The
production of personalized
scoliosis orthopedic program is feasible, and the orthopedic
rehabilitation effect is remarkable.