Ultra-high-molecular-weight Polyethylene (UHMWPE) Wing Method for Strong Cranioplasty
| Autor: | Nobushige Tsuboi, Kazuki Kobayashi, Noriyuki Nagayama, Hideyuki Yoshida, Yuu Takahashi, Ryu Kimura, Tadato Yukiue, Takao Yasuhara, Susumu Sasada, Ryo Mizuta, Tomoyuki Ogawa, Isao Date, Keigo Makino |
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| Rok vydání: | 2021 |
| Předmět: |
Artificial bone
animal structures medicine.medical_treatment Finite Element Analysis finite element analyses chemistry.chemical_compound Animals Humans Medicine ultra-high-molecular-weight polyethylene artificial bone Ultra-high-molecular-weight polyethylene Wing business.industry Shunt malfunction Prostheses and Implants Cranioplasty Screw loosening chemistry Normal position cranioplasty Original Article Surgery Neurology (clinical) Polyethylenes business Biomedical engineering |
| Zdroj: | Neurologia medico-chirurgica |
| ISSN: | 1349-8029 0470-8105 |
| DOI: | 10.2176/nmc.oa.2021-0032 |
| Popis: | We developed a new cranioplasty method that utilizes artificial bone made of ultra-high-molecular-weight polyethylene, with a wedge-shaped edge (UHMWPE Wing). This study shows the methods and data of case series and finite element analyses with the UHMWPE Wing. A circumferential wing was preoperatively designed for a custom-made artificial bone made of UHMWPE to achieve high fixed power and to minimize the usage of cranial implants. Here, we present 4 years of follow-up data and finite element analyses for patients treated with the UHMWPE Wing between February 2015 and February 2019. Eighteen consecutive patients underwent cranioplasty using our UHMWPE Wing design. There were no postoperative adverse events in 17 of the patients for at least 18 months. One case of hydrocephalus experienced screw loosening and graft uplift due to shunt malfunction. Placement of a ventriculo-peritoneal shunt immediately returned the artificial bone to normal position. Finite element analyses revealed that a model using the UHMWPE Wing had the highest withstand load and lowest deformation. This is the first report on the UHMWPE Wing method. This method may enable clinicians to minimize dead space and achieve high strength in cranioplasty. |
| Databáze: | OpenAIRE |
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