24 / 29
Page 48
Volume 3, Issue 4 (Suppl)
J Clin Exp Orthop
ISSN:2471-8416
Osteoporosis and Arthroplasty 2017
December 04-05, 2017
&
11
th
International Conference on
Joint Event
OSTEOPOROSIS, ARTHRITIS & MUSCULOSKELETAL DISORDERS
December 04-05, 2017 | Madrid, Spain
10
th
INTERNATIONAL CONFERENCE ON ARTHROPLASTY
3D printing porous tantalum metal module for treatment of DDH
Dewei Zhao, Liangliang Cheng
and
Benjie Wang
Affiliated Zhongshan Hospital of Dalian University, China
Objective:
To explore a new type of individualized treatment technical process to repair acetabulum defect of developmental dysplasia
of the hip (DDH) with 3D printing porous tantalum metal module, and to evaluate the early clinical outcome of patients.
Methods:
CT scanning was performed on the DDH patients’ hip, constructed the three-dimensional model by MIMICS and
3-MATIC software, and extracted the acetabulum model and femur model respectively; constructed the three-dimensional model
for the acetabulum defect reversely, adopted the materialize magic’s software to make the porosity-oriented and optimized process for
the model; made the finite-element analysis on the acetabulum model with ANSYS software to guarantee the uniform distribution of
the joint stress after repair; printed the porous titanium module for the designed three-dimensional model of the acetabulum defect
by rapid prototyping, and made the metal spraying of tantalum; done the operation with the personalized acetabulum module and
evaluated the clinical follow-up.
Results:
The porous metal module produced by 3D printing technology could match with the hip joint of patients optimally and
thus achieved primary stability; the clinical follow-up showed: patients’ pain was relieved significantly; the function of joints was
improved significantly; the implanted prosthesis did not loose and the bone in-growth in the model prosthesis was found according
to the radiological evaluation.
Conclusion:
The 3D-printing porous tantalum metal module shows good clinical effect for the treatment of DDH patients.
Personalized acetabulummodule matches with the hip joint of patients greatly, which effectively improves the coverage of acetabulum
for the femur head and avoids the traditional periacetabular osteotomy; meanwhile, the porous structural design and the tantalum
metal coating is beneficial for the ingrowth of bone in the metal module, which enhances the long-term stability.
Recent Publications
1.
Zhao D, Qiu X and Wang B, et al. (2017) Epiphyseal arterial network and inferior retinacular artery seem critical to femoral
head perfusion in adults with femoral neck fractures. Clinical Orthopaedics and Related Research 475(8):2011-2023
2.
Kamada T, Mashima N, Nakashima Y, et al. (2015) Mid-term clinical and radiographic outcomes of porous tantalum
modular acetabular components for hip dysplasia. Journal of Arthroplasty 30(4):607-10.
3.
Paton RW (2017) Screening in Developmental Dysplasia of the Hip (DDH). Surgeon 15(5):290-296.
4.
Clohisy J C (2017) Developmental dysplasia of the hip: contemporary concepts and treatment innovations. Journal of
Arthroplasty 32(9S): S18-S19.
5.
Tarpada S P, Girdler S J and Morris M T (2017) Developmental dysplasia of the hip: a history of innovation. Journal of
Pediatric Orthopaedics doi: 10.1097/BPB.0000000000000463
Biography
Dewei Zhao is a President of Affiliated Zhongshan Hospital of Dalian University and President of Chinese Association of Microsurgery Surgeons. He dedicates
in the treatment of osteonecrosis of femoral head (ONFH) for nearly three decades. Based on anatomical and clinical study, he has made original series surgical
techniques for reconstruction of the necrotic femoral head, and these techniques can be applied in every stage of ONFH. He is the Editor of nine academic journals.
He has published more than 200 papers in basic and clinical research of ONFH, the new finding of circulation of femoral head, new metal biomaterials and their
clinical application. His works are especially important for younger patients with symptomatic ONFH.
zhaodewei2000@163.comDewei Zhao et al., J Clin Exp Orthop 2017, 3:4(Suppl)
DOI: 10.4172/2471-8416-C1-002