PMID- 18590208
OWN - NLM
STAT- MEDLINE
DCOM- 20100216
LR  - 20221207
IS  - 1009-4598 (Print)
IS  - 1009-4598 (Linking)
VI  - 24
IP  - 2
DP  - 2008 Mar
TI  - [Computer-assisted manufacture of individual auricular framework and the 
      experimental study for ear reconstruction].
PG  - 101-4
AB  - OBJECTIVE: To manufacture the individual polyurethane (PUR) auricular framework 
      using the rapid prototyping (RP) technique and to evaluate its feasibility in ear 
      reconstruction. METHODS: 3-D models of the patient's auricle were reconstructed 
      according to the computed tomography (CT) data. The supporting and drainage 
      structures were created. Then the individual PUR auricular frameworks were 
      manufactured using RP technique. The frameworks were tested for the fatigue 
      strength and elasticity. The frameworks were also put at the subcutaneous layer 
      of rat. At 1, 2, 4, 8, 12 weeks after operation, the shape of the reconstructed 
      ears was observed and the histological examination was performed. RESULTS: The 
      PUR framework had good elasticity and a much better fatigue strength than high 
      density polyethylene (HDPE) framework. The shape of reconstructed ear matched the 
      prototype very well. The around tissue grew into the implant pore and adhered 
      tightly to the framework 2 weeks after implantation. Histologic examination 
      showed integrated capsule four weeks later without lymphocytes infiltration. The 
      shape kept very well twelve weeks later. CONCLUSIONS: PUR auricular framework 
      manufactured by the 3D reconstruction and RP techniques has very good shape, 
      intensity and elasticity. It can be selected to replace the autograft of rib 
      cartilage framework.
FAU - Luan, Jie
AU  - Luan J
AD  - Plastic Surgery Hospital, Chinese Academy of Medical Science, Beijing 100041, 
      China.
FAU - Shi, Ting-Chun
AU  - Shi TC
FAU - Zhang, Ren-Ji
AU  - Zhang RJ
FAU - Wang, Ling-Yu
AU  - Wang LY
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Zhonghua Zheng Xing Wai Ke Za Zhi
JT  - Zhonghua zheng xing wai ke za zhi = Zhonghua zhengxing waike zazhi = Chinese 
      journal of plastic surgery
JID - 100957850
SB  - IM
MH  - Animals
MH  - Computer-Aided Design
MH  - Ear, External/surgery
MH  - Humans
MH  - Otologic Surgical Procedures/*instrumentation
MH  - *Prosthesis Design
MH  - Rats
MH  - Rats, Wistar
MH  - Plastic Surgery Procedures/*instrumentation
MH  - Stents
EDAT- 2008/07/02 09:00
MHDA- 2010/02/17 06:00
CRDT- 2008/07/02 09:00
PHST- 2008/07/02 09:00 [pubmed]
PHST- 2010/02/17 06:00 [medline]
PHST- 2008/07/02 09:00 [entrez]
PST - ppublish
SO  - Zhonghua Zheng Xing Wai Ke Za Zhi. 2008 Mar;24(2):101-4.