Brief Overview on Nitinol as Biomaterial

Wadood, Abdul

doi:10.1155/2016/4173138

Cited by 112 publications

(67 citation statements)

References 85 publications

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“…Superiority of Nitinol to stainless steel and Ti-Al-V for endochondral bone substitution has be explained by other authors [25]. Tarnita et al have shown Nitinol resemblance to the bone [37] by indicating self-locking, self-expanding, and self-compression attests [20,23,[38][39][40]. Another preference of Nitinol to stainless steel is insensitiveness to the magnetic resonance [41,42] which eliminates the debris movement concern during the spinal imaging examination.…”

Section: Nitinolmentioning

confidence: 99%

Nitinol Spinal Vertebrae: A Favorable New Substitute

Sadrnezhaad

Parsafar

Rashtiani

et al. 2019

IJE

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A B S T R A C TScoliosis, kyphosis, and bone fracture are health problems, especially of the elderly throughout the world. The vertebra protects the spinal cord. Any impairment to the vertebra can lead to pain and nervousness. Ni-Ti alloy (Nitinol) helps to resolve the problem by fulfilling such requirements as for strength, durability, resistance to wear, and shockwave damping which is due to the shape memory effect. Nitinol medical applications have so far been restricted to surgical devices and orthopaedics. Little has been said about Nitinol use for medication of the spinal vertebra disorder. This article appraises the potential features of Nitinol for vertebral implantation and therapeutic prescription consistent with the specific anatomical variation. Staples, screws, cages, stents, and posterior-stabilizers made of Nitinol have passed in-vitro tests and in some cases in-vivo examinations. Using anatomically tailored Nitinol for treatment and administration of the damaged vertebra is proposed as a forecastable dream.

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Section: Nitinolmentioning

confidence: 99%

Nitinol Spinal Vertebrae: A Favorable New Substitute

Sadrnezhaad

Parsafar

Rashtiani

et al. 2019

IJE

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“…46 This is likely related to the shape memory effect of nitinol. 47 During clot retrieval, the microcatheter is minimally advanced onto the detachment zone of the stentriever, and the entire stentriever-microcatheter assembly is pulled back as a unit. Aspiration needs to be applied to the guide catheter throughout this retrieval process, to prevent NTE.…”

Section: Intervention Phasementioning

confidence: 99%

Acute Ischemic Stroke: A Review of Imaging, Patient Selection, and Management in the Endovascular Era. Part II: Patient Selection, Endovascular Thrombectomy, and Postprocedure Management

Nagesh

2018

J Clin Interv Radiol ISVIR

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Appropriate patient selection and expedient recanalization are the mainstay of modern management of acute ischemic stroke (AIS). Only a minority of patients (7–15%) of patients are eligible for endovascular therapy. Patient selection may be time based or perfusion based. Central to both paradigms is the selection of a patient with a small core, a significant penumbra that can be differentiated from areas of oligemia. A brief review of patient selection methods is presented. Endovascular thrombectomy techniques using stentrievers or aspiration catheters have now become the treatment of choice for AIS with large vessel occlusion. A range of devices, each with its own advantages and disadvantages, are available in the market for the neurointerventionist to choose. Techniques vary between devices and between operators, but standardization and protocolization are important within each center. Complications must be anticipated to be avoided. Once reperfusion is achieved, outcomes must be safeguarded with competent postprocedure management to prevent secondary brain injury. These aspects are reviewed in this article.

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“…Last but not least, pre-operative management plays an essential role and needs to be taken into account for favorable outcomes, as Table 1 presents. Implants used for osteosynthesis are manufactured using iron-based alloys such as surgical grade stainless-steel 316L, titanium-based alloys, cobalt-chromium-based composites, or shape-memory alloys [23][24][25]. Of these, stainless-steel 316L is the most commonly used, due to its cost-effectiveness and good integration of corrosion resistance and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Failure Analysis of Retrieved Osteosynthesis Implants

et al. 2020

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Failure of osteosynthesis implants is an intricate matter with challenging management that calls for efficient investigation and prevention. Using implant retrieval analysis combined with standard radiological examination, we evaluated the main causes for osteosynthesis implant breakdown and the relations among them for a series of cases. Twenty-one patients diagnosed with implant failure were assessed for this work. For metallurgical analysis, microscopy techniques such as scanning electron microscopy (SEM), stereomicroscopy, and optical microscopy were employed. The results showed that material structural deficiencies (nine patients) and faulty surgical techniques (eight patients) were the main causes for failure. An important number of patients presented with material structural deficiencies superimposed on an imperfect osteosynthesis technique (six patients). Consequently, the importance of failure retrieval analysis should not be overlooked, and in combination with other investigational techniques, must provide information for both implant manufacturing and design improvement, as well as osteosynthesis technique optimization.

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Brief Overview on Nitinol as Biomaterial

Cited by 112 publications

References 85 publications

Nitinol Spinal Vertebrae: A Favorable New Substitute

Nitinol Spinal Vertebrae: A Favorable New Substitute

Acute Ischemic Stroke: A Review of Imaging, Patient Selection, and Management in the Endovascular Era. Part II: Patient Selection, Endovascular Thrombectomy, and Postprocedure Management

Failure Analysis of Retrieved Osteosynthesis Implants

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