Quantitative Radiographic Analysis of Fiber Reinforced Polymer Composites

Baidya, K. P.; Ramakrishna, Seeram; Rahman, Mohamed Abdel; Ritchie, Allan

doi:10.1106/bklq-e2yg-d2la-rg3r

Cited by 54 publications

(16 citation statements)

References 7 publications

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“…22 We suggest that navigational assistance can be helpful in the safe resection of malignant bone tumours and may lead to improved oncological and functional outcomes.…”

Section: Discussionmentioning

confidence: 97%

The outcomes of navigation-assisted bone tumour surgery

Cho

Han

et al. 2012

The Journal of Bone and Joint Surgery. British volume

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We evaluated the oncological and functional outcome of 18 patients, whose malignant bone tumours were excised with the assistance of navigation, and who were followed up for more than three years. There were 11 men and seven women, with a mean age of 31.8 years (10 to 57). There were ten operations on the pelvic ring and eight joint-preserving limb salvage procedures. The resection margins were free of tumour in all specimens. The tumours, which were stage IIB in all patients, included osteosarcoma, high-grade chondrosarcoma, Ewing's sarcoma, malignant fibrous histiocytoma of bone, and adamantinoma. The overall three-year survival rate of the 18 patients was 88.9% (95% confidence interval (CI) 75.4 to 100). The three-year survival rate of the patients with pelvic malignancy was 80.0% (95% CI 55.3 to 100), and of the patients with metaphyseal malignancy was 100%. The event-free survival was 66.7% (95% CI 44.9 to 88.5). Local recurrence occurred in two patients, both of whom had a pelvic malignancy. The mean Musculoskeletal Tumor Society functional score was 26.9 points at a mean follow-up of 48.2 months (22 to 79). We suggest that navigation can be helpful during surgery for musculoskeletal tumours; it can maximise the accuracy of resection and minimise the unnecessary sacrifice of normal tissue by providing precise intra-operative three-dimensional radiological information.

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“…22 We suggest that navigational assistance can be helpful in the safe resection of malignant bone tumours and may lead to improved oncological and functional outcomes.…”

Section: Discussionmentioning

confidence: 97%

The outcomes of navigation-assisted bone tumour surgery

Cho

Han

et al. 2012

The Journal of Bone and Joint Surgery. British volume

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“…Radiographic analysis of CFR-PEEK composites confirmed superior radiolucency to other composites, allowing for complete cortical bone visualization [7]. Studies examining metal alloy implants found that titanium produces the least CT artifact, but still results in metallic streak artifact, limiting evaluation of immediate periprosthetic tissues [8,9].…”

Section: Introductionmentioning

confidence: 95%

Carbon fiber intramedullary nails reduce artifact in postoperative advanced imaging

et al. 2015

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“…A compressive test was designed according to the American Society for Testing and Materials (ASTM) testing standard D695-02 [6] to determine the elastic modulus. Cylindrical test specimens were machined from stock PEEK-OPTIMA 1 LT1 rod material (Grade LTIR30, Invibio, Lancashire, UK), with dimensions 12.7 mm diameter by 50.8 mm length to fulfil the required slenderness ratio of 11-16.…”

Section: Quasi-static Compressive Testingmentioning

confidence: 99%

The long-term mechanical integrity of non-reinforced PEEK-OPTIMA polymer for demanding spinal applications: experimental and finite-element analysis

2005

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Polyetheretherketone (PEEK) is a novel polymer with potential advantages for its use in demanding orthopaedic applications (e.g. intervertebral cages). However, the influence of a physiological environment on the mechanical stability of PEEK has not been reported. Furthermore, the suitability of the polymer for use in highly stressed spinal implants such as intervertebral cages has not been investigated. Therefore, a combined experimental and analytical study was performed to address these open questions. A quasi-static mechanical compression test was performed to compare the initial mechanical properties of PEEK-OPTIMA polymer in a dry, room-temperature and in an aqueous, 37 degrees C environment (n=10 per group). The creep behaviour of cylindrical PEEK polymer specimens (n=6) was measured in a simulated physiological environment at an applied stress level of 10 MPa for a loading duration of 2000 hours (12 weeks). To compare the biomechanical performance of different intervertebral cage types made from PEEK and titanium under complex loading conditions, a three-dimensional finite element model of a functional spinal unit was created. The elastic modulus of PEEK polymer specimens in a physiological environment was 1.8% lower than that of specimens tested at dry, room temperature conditions (P<0.001). The results from the creep test showed an average creep strain of less than 0.1% after 2000 hours of loading. The finite element analysis demonstrated high strain and stress concentrations at the bone/implant interface, emphasizing the importance of cage geometry for load distribution. The stress and strain maxima in the implants were well below the material strength limits of PEEK. In summary, the experimental results verified the mechanical stability of the PEEK-OPTIMA polymer in a simulated physiological environment, and over extended loading periods. Finite element analysis supported the use of PEEK-OPTIMA for load-bearing intervertebral implants.

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Quantitative Radiographic Analysis of Fiber Reinforced Polymer Composites

Cited by 54 publications

References 7 publications

The outcomes of navigation-assisted bone tumour surgery

The outcomes of navigation-assisted bone tumour surgery

Carbon fiber intramedullary nails reduce artifact in postoperative advanced imaging

The long-term mechanical integrity of non-reinforced PEEK-OPTIMA polymer for demanding spinal applications: experimental and finite-element analysis

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