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The Use of Prefabricated 3D Printed PEEK Implants for Repair of Skull Defects

2022 The Medical journal of Cairo University  
Patients and Methods: The study included 20 patients with skull defects >4cm in diameter operated upon by cranioplasty using prefabricated 3D printed PEEK implants in the period from March 2017 to April  ...  Aim of Study: To evaluate the use of prefabricated customized 3D printed implants for cranioplasty of skull defects >4cm in diameter.  ...  Conclusion: Use of prefabricated PEEK implants for reconstruction of large skull defects has shown promising results.  ... 
doi:10.21608/mjcu.2022.234984 fatcat:ltzttf2yojgt5es43d6y5appea

Prefabricated Patient-Matched Cranial Implants for Reconstruction of Large Skull Defects

Jarle Sundseth, Jon Berg-Johnsen
2013 Journal of Central Nervous System Disease  
A CT scan with 2 mm slices and a three-dimensional reconstruction were obtained from the patient. This information was dispatched to the company and used as a template to form the implant.  ...  Large defects should be reconstructed to protect the brain and normalize the cerebral hemodynamics. The conventional method is to cover the defect with bone cement.  ...  Six of the infections occurred after replacement of the patient's own bone flap following decompressive hemicraniectomy, and four developed a secondary deep infection after craniotomy.  ... 
doi:10.4137/jcnsd.s11106 pmid:23650475 pmcid:PMC3616596 fatcat:huyllnmwe5h5vkr4l64abcwkim

Postoperative Imaging of Complications Following Cranial Implants

Chi Long Ho, Louis McAdory
2019 Journal of the Belgian Society of Radiology  
If not addressed appropriately in a timely manner, these complications may cause a delay in the patient's treatment with subsequent prolongation of hospital stay.  ...  A wide range of neurosurgical implants, cranioplasty materials and catheters have been developed to treat a variety of intracranial disorders.  ...  After removal of the titanium plate, the scalp was reconstructed with a rotation flap and skin graft.  ... 
doi:10.5334/jbsr.1881 pmid:31872175 pmcid:PMC6923773 fatcat:himz36q3l5avvfxbfra23e4vve

Intraoperative fabrication of patient-specific moulded implants for skull reconstruction: single-centre experience of 28 cases

Lennart Henning Stieglitz, Nicolas Gerber, Thomas Schmid, Pasquale Mordasini, Jens Fichtner, Christian Fung, Michael Murek, Stefan Weber, Andreas Raabe, Jürgen Beck
2014 Acta Neurochirurgica  
Measurements of implant thickness showed a very high correlation with the thickness of the contralateral bone. Volumetric subtraction led to a median quality of 80 on a scale from 0 to 100.  ...  Conclusions Implantation of intraoperatively fabricated patient-specific moulded implants is a cost-effective and safe technique leading to good clinical results with a low complication rate.  ...  AThe 3D reconstruction of the bone after implantation of a PSMI (in white) Table 1 1 Complications after PSMI implantation n Patient IDs Infection of unknown origin 0 Infection after wound healing  ... 
doi:10.1007/s00701-013-1977-5 pmid:24442601 fatcat:z44szuhphrg3xcvgcfakn6guim

Designer Cranioplasty at Budget Prices: A Novel Use of 3D Printing Technology

Thirumal Yerragunta, Reddy Ramanadha Kanala, Vamsi Krishna Yerramneni, Swapnil Kolpakawar, Vasundhara Rangan
2021 Indian Journal of Neurosurgery  
Objectives To study the effectiveness of a low-cost, 3D-printed template for molding the polymethyl methacrylate (PMMA) (bone cement) in order to achieve exact contours of the skull specific to each patient  ...  However, the high-cost of available 3D printed implants limits their extensive use.  ...  Using this software, reconstruction of those axial images into a 3D skull image with evident bone defect was done. The skull defect was reshaped using a mirror image of the normal side.  ... 
doi:10.1055/s-0040-1716995 fatcat:zt7dky7vvneidf7kvbamfzvl5q

Silicone rubber mould cast polyethylmethacrylate-hydroxyapatite plate used for repairing a large skull defect

Horatiu Rotaru, Mihaela Baˇciut̡, Horatiu Stan, Simion Bran, Horea Chezan, Alexandru Iosif, Mircea Tomescu, Seong-Gon Kim, Alexandru Rotaru, Grigore Baˇciut̡
2006 Journal of Cranio-Maxillofacial Surgery  
Conclusion: The use of 3D imaging and rapid prototyping allow precise repair of large skull defects, with good aesthetic and functional results.  ...  Patient and method: A large custom made cranial implant was produced using data acquired from 3D computer tomography, rapid prototyping and cast in a silicone rubber mould.  ...  DISCUSSION To repair large skull defects, either reconstruction of the vault intra-operatively or a 'custom made cranial implant,' may be chosen preoperatively.  ... 
doi:10.1016/j.jcms.2006.01.005 pmid:16644233 fatcat:7bxir7z6ajhqdbqyqbjs5hafbe

Hemicraniectomy: A New Model for Human Electrophysiology with High Spatio-temporal Resolution

Bradley Voytek, Lavi Secundo, Aurelie Bidet-Caulet, Donatella Scabini, Shirley I. Stiver, Alisa D. Gean, Geoffrey T. Manley, Robert T. Knight
2010 Journal of Cognitive Neuroscience  
Signals over the hemicraniectomy have enhanced amplitude and greater task-related power at higher frequencies (60-115 Hz) compared with signals over skull.  ...  We also provide evidence of a metric for trial-by-trial EMG/ EEG coupling that is effective over the hemicraniectomy but not intact skull at frequencies >60 Hz.  ...  .), the Fondation pour la Recherche Medicale to A. B. C., and the National Institute of Neurological Disorders and Stroke (NS21135-22S1 to B. V., NS050173 to G. T. M., and NS21135 to R. T. K.  ... 
doi:10.1162/jocn.2009.21384 pmid:19925193 pmcid:PMC2888789 fatcat:vskmqe65lfbtdbzvlsu5mmgeaa

Cranioplasty using autoclaved autologous skull bone flaps preserved at ambient temperature

Rajeev Aravindakshan, Dominic Anto, RajuPaul Manjooran, Kumar Lakshman, Raymond Morris
2017 Journal of Neurosciences in Rural Practice  
Radiologically significant bone resorption was noted in a single patient (1.39%) after 1 year.  ...  Patients and Methods: Seventy-two patients who underwent CP with autoclaved autologous skull flaps preserved under ambient conditions with strict aseptic precautions were included in the study.  ...  There are a lot of controversial observations regarding sterilization and storage of these skull bone flaps prior to cranial reconstruction.  ... 
doi:10.4103/jnrp.jnrp_270_17 pmid:29204021 pmcid:PMC5709884 fatcat:i7xjyn67ujc5ba23xxv7wcocve

Cranioplasty After Severe Traumatic Brain Injury: Effects of Trauma and Patient Recovery on Cranioplasty Outcome

Jussi P. Posti, Matias Yli-Olli, Lauri Heiskanen, Kalle M. J. Aitasalo, Jaakko Rinne, Ville Vuorinen, Willy Serlo, Olli Tenovuo, Pekka K. Vallittu, Jaakko M. Piitulainen
2018 Frontiers in Neurology  
or failure. tSAH on admission imaging is a major risk factor for a major complication leading to implant removal.  ...  Successful cranioplasty was associated with better outcome, whereas a major complication attenuates patient recovery: in patients with favorable outcome assessed 1 year after cranioplasty, major complication  ...  Thus, it is plausible the reconstructed skull after sTBI and subsequent DC improves cerebral perfusion in different lobes (8) .  ... 
doi:10.3389/fneur.2018.00223 pmid:29695995 pmcid:PMC5904383 fatcat:spdrqdd7rndh3lclejuyork3xu

Evaluation of three different methods of cranioplasty; a comparative prospective randomized study

Mahmoud Mousa, Saed Eissa, Mohamed Raslan, Basem Abu ElNaga, Ahmed Balaha
2021 Pan arab journal of neurosurgery  
However, complication rates showed a slight increase with PMMA, which lead to decreased patient satisfaction.  ...  BACKGROUND: Multiple materials have been used for cranioplasty with different pros and cons.  ...  INTRODUCTION Cranioplasty is defined as a reconstructive procedure that is used to repair skull defects and restore the skull anatomy. 3] [4] Therefore, optimum reconstruction should be chosen for every  ... 
doi:10.21608/pajn.2021.86841.1030 fatcat:t7mf7ozn4zcbhgxadyf5xlngw4

The Recent Revolution in the Design and Manufacture of Cranial Implants

David J. Bonda, Sunil Manjila, Warren R. Selman, David Dean
2015 Neurosurgery  
Implants may be cultured in a bioreactor along with recombinant growth factors to produce implants coated with bone progenitor cells and extracellular matrix that appear to the body as a graft, albeit  ...  A skull template may be used to design the external shape of an implant that will become well integrated in the skull, while also providing beneficial distribution of mechanical force distribution in the  ...  They note observing CT-based evidence of bone consolidation as well as good integration of the implant after 6 months.  ... 
doi:10.1227/neu.0000000000000899 pmid:26171578 pmcid:PMC4615389 fatcat:5abnuk37nbhqjckb7rsv36nhsi

Decompressive craniectomy in traumatic brain injury: Quo Vadis?

Luis Rafael Moscote-Salazar, Hernando Raphael Alvis-Miranda, Gabriel Alcala-Cerra, Andres Mariano Rubiano
2014 Ukrainian Neurosurgical Journal  
Intracranial hypertension is the leading cause of mortality in patients with cranial injury. Currently the traumatic brain injury is a public health problem worldwide.  ...  Decompressive craniectomy emerges as a treatment strategy for patients with refractory intracranial hypertension. The completed surgery requires careful surgical technique and exquisite.  ...  The consequences of discard the bone flap are obvious, requires a cranioplasty with intraoperative reconstruction, making expensive the procedure, and sacrificing cosmesis.  ... 
doi:10.25305/unj.46593 fatcat:vreih5snxzdinca2lr3uez3l2q

Cranioplasty with autologous cryopreserved bone after decompressive craniectomy. Complications and risk factors for developing surgical site infection

J. Sundseth, A. Sundseth, J. Berg-Johnsen, W. Sorteberg, K.-F. Lindegaard
2014 Acta Neurochirurgica  
Conclusions SSI and bone flap resorption are the most frequent complications associated with the reimplantation of autologous cryopreserved bone after decompressive craniectomy.  ...  The aim of this study was to investigate the frequency and possible risk factors for developing surgical site infection (SSI) after delayed cranioplasty using autologous, cryopreserved bone.  ...  SSI after cranioplasty with cryopreserved bone The use of cryopreserved autologous bone in the reconstruction of the cranial defect after craniectomy entails a risk for developing SSI.  ... 
doi:10.1007/s00701-013-1992-6 pmid:24493001 pmcid:PMC3956933 fatcat:2vxyw4luqncixoxk5nhejek7c4

Outcomes of Cranioplasty Using Autologous Bone or 3D-Customized Titanium Mesh Following Decompressive Craniectomy for Traumatic Brain Injury: Differences in Complications

Junwon Kim, Jang Hun Kim, Jong Hyun Kim, Taek-Hyun Kwon, Haewon Roh
2019 Journal of Trauma and Injury  
A subgroup risk factor analysis of CP with an autologous bone flap showed no risk factors that predicted BFR with statistical significance, although a marginal association was found between larger bone  ...  after CP. results: In the autologous bone flap group, there were three cases of surgical infection (3/24, 12.5%) and 11 cases of bone flap resorption (BFR) (11/24, 45.83%).  ...  Using that software, the surface area of the implanted bone flaps or implanted titanium mesh plates was measured by manually tracing their outlines on lateral skull plain images.  ... 
doi:10.20408/jti.2019.033 fatcat:qvgclhl7u5e4vab64alsceyhgi

Evaluation of neurosurgical implant infection rates and associated pathogens: evidence from 1118 postoperative infections

Ying Chen, Linyan Zhang, Tingting Qin, Zhenzhen Wang, Ying Li, Bing Gu
2019 Neurosurgical Focus  
a certain reference for the clinic.  ...  The goal of this study was to investigate implant infections in neurosurgical procedures in a longitudinal retrospective study and to evaluate the IRs of neurosurgically implanted materials and the distribution  ...  Archavlis E, Carvi Y Nievas M: The impact of timing of cranioplasty in patients with large cranial defects after decompressive hemicraniectomy. Acta Neurochir (Wien) 154:1055-1062, 2012 7.  ... 
doi:10.3171/2019.5.focus18582 pmid:31370027 fatcat:u4x2qwtltbdctcss4wrzn3y4gy
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