Taylored implants for alloplastic cranioplasty — clinical and surgical considerations

Hoffmann, B.; Sepehrnia, Abolghassem

doi:10.1007/3-211-27577-0_21

Cited by 15 publications

(11 citation statements)

References 10 publications

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“…Polymethyl methacrylate (PMMA) has long been used as a substrate for cranioplasties, and intraoperatively moulded prostheses are still very widely used in cranioplasties. 8,13,18 Since 1998, rapid developments in medical imaging and computational modeling have enabled fabrication of custom-made implants using computer-aided design/computer-aided manufacturing (CAD/CAM). [19][20][21][22][23][24][25] Prefabricated prostheses can now be precisely tailored to the shape of complex craniofacial defects.…”

Section: Introductionmentioning

confidence: 99%

“…7,8 Cranioplasty can be described as a procedure not only for anatomical reconstruction but also for neurological improvement of the underlying physiology, including cerebral hemodynamics and metabolism. [9][10][11][12][13] A range of materials can be used to repair cranial defects, including autograft bone, allograft bone, xenograft bone and bone substitues. [14][15][16][17] Fresh frozen autogenous bone grafts obtained during the initial operation are excellent for delayed cranioplasty.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cranioplasty using polymethyl methacrylate prostheses

Lee

et al. 2009

Journal of Clinical Neuroscience

171

108

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cranioplasty using polymethyl methacrylate prostheses

Lee

et al. 2009

Journal of Clinical Neuroscience

171

108

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“…Cranioplasty is performed for the following reasons: protection of the brain, restoration of the brain's hydrodynamic conditions [14, 29, 51, 52], and cosmetics. Cranioplasty can be performed by using autologous bone or patient-specific prostheses made of various alloplastic materials [6, 9, 23, 31]. Autologous bone is often preferred to allograft due to its perfect match to the bony defect and low cost.…”

Section: Introductionmentioning

confidence: 99%

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

Sundseth

Berg-Johnsen

et al. 2014

Acta Neurochir

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BackgroundRenewed interest has developed in decompressive craniectomy, and improved survival is shown when this treatment is used after malignant middle cerebral artery infarction. 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.MethodsThis retrospective study included 74 consecutive patients treated with decompressive craniectomy during the time period May 1998 to October 2010 for various non-traumatic conditions causing increased intracranial pressure due to brain swelling. Complications were registered and patient data was analyzed in a search for predictive factors.ResultsFifty out of the 74 patients (67.6 %) survived and underwent delayed cranioplasty. Of these, 47 were eligible for analysis. Six patients (12.8 %) developed SSI following the replacement of autologous cryopreserved bone, whereas bone resorption occurred in two patients (4.3 %). No factors predicted a statistically significant rate of SSI, however, prolonged procedural time and cardiovascular comorbidity tended to increase the risk of SSI.ConclusionsSSI and bone flap resorption are the most frequent complications associated with the reimplantation of autologous cryopreserved bone after decompressive craniectomy. Prolonged procedural time and cardiovascular comorbidity tend to increase the risk of SSI.

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“…The old bone flap was removed as was the old generator, and a prefashioned polyetheretherketone cranioplasty was placed. The cranioplasty was fashioned with W. S. Anderson et al the help of computer-aided design from CT-derived data 13,25 (Synthes, Inc.). This implant was also designed to work in conjunction with the RNS ferrule.…”

Section: Casementioning

confidence: 99%

Implantation of a responsive neurostimulator device in patients with refractory epilepsy

Anderson

Kossoff²,

Bergey³

et al. 2008

FOC

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Object The authors summarize one center's experience with a novel device, the Responsive Neurostimulation (RNS) system, which is used to treat seizures, and they provide technical details regarding the implantation procedure. Methods The authors reviewed seizure detection, cortical stimulation, and clinical data obtained in 7 patients in whom the RNS system was implanted. Data pertaining to seizure alteration are provided for the first 4 implant-treated patients. The implantation procedure in the case of one patient with occipital lobe heterotopia is included. Results Based on patients' seizure diaries, the implanted devices functioned at a high sensitivity for clinical seizure detection. Reductions in seizure frequency, based on their diaries and on clinic follow-up notes, ranged from 50 to 75%. No adverse stimulation-induced side effects were noted, and no hardware malfunctions requiring explantation occurred. Generator replacements for battery depletion were required at 11, 17, and 20 months in 3 patients. The implantation procedure was well tolerated, and postoperative hospital stays were short. A revision cranioplasty for a skull defect was performed in the index patient, whose case will be discussed in the most detail. Conclusions The results obtained in this small preliminary series demonstrate a safe implantation method for the responsive neurostimulation device.

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Taylored implants for alloplastic cranioplasty — clinical and surgical considerations

Cited by 15 publications

References 10 publications

Cranioplasty using polymethyl methacrylate prostheses

Cranioplasty using polymethyl methacrylate prostheses

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

Implantation of a responsive neurostimulator device in patients with refractory epilepsy

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