Aesthetic finger prosthesis with silicone biomaterial

Raghu, K M; Gururaju, C R; Sundaresh, K J; Mallikarjuna, Rachappa

doi:10.1136/bcr-2013-010385

Cited by 18 publications

(18 citation statements)

References 15 publications

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“…The typical fabrication methodology used irreversible hydrocolloid to take an impression of the defect, followed by the creation of a positive cast using dental stone. The final wax patterns were then sculpted using either an impression of the contralateral finger (Shanmuganathan et al, 2011;Jacob et al, 2012;Aydin et al, 2013;Raghu et al, 2013;Saxena et al, 2014) or a donor finger (Arora et al, 2011;Kaira and Dabral, 2014) for their shape. Attachment strategies for non-functional prosthetic fingers include a glove fit over the stump of the remaining finger (Arora et al, 2011;Shanmuganathan et al, 2011;Jacob et al, 2012;Kaira and Dabral, 2014), implants (Aydin et al, 2013), or by a ring (Arora et al, 2011;Raghu et al, 2013).…”

Section: Prosthetic Hands and Fingersmentioning

confidence: 99%

“…The final wax patterns were then sculpted using either an impression of the contralateral finger (Shanmuganathan et al, 2011;Jacob et al, 2012;Aydin et al, 2013;Raghu et al, 2013;Saxena et al, 2014) or a donor finger (Arora et al, 2011;Kaira and Dabral, 2014) for their shape. Attachment strategies for non-functional prosthetic fingers include a glove fit over the stump of the remaining finger (Arora et al, 2011;Shanmuganathan et al, 2011;Jacob et al, 2012;Kaira and Dabral, 2014), implants (Aydin et al, 2013), or by a ring (Arora et al, 2011;Raghu et al, 2013). In the case of the glove fit approach, the diameter of the wax pattern was reduced by 0.5-1 mm so the final silicone prosthesis would have to be stretched over the stump, creating a tight fit (Arora et al, 2011;Shanmuganathan et al, 2011;Jacob et al, 2012;Kaira and Dabral, 2014).…”

Section: Prosthetic Hands and Fingersmentioning

confidence: 99%

“…For the final prosthetic finger, the most commonly used material was RTV silicone. In some cases a thickener was added to the silicone base to give the prostheses a more natural appearance and feel (Jacob et al, 2012;Raghu et al, 2013). Prosthetic fingernails typically employ a heat cured clear acrylic material further secured with RTV silicone or a cyanoacrylate adhesive (Arora et al, 2011;Kaira and Dabral, 2014).…”

Section: Prosthetic Hands and Fingersmentioning

confidence: 99%

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Advancements in Soft-Tissue Prosthetics Part A: The Art of Imitating Life

Cruz

Ross

Powell

et al. 2020

Front. Bioeng. Biotechnol.

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Physical disfigurement due to congenital defects, trauma, or cancer causes considerable distress and physical impairment for millions of people worldwide; impacting their economic, psychological and social wellbeing. Since 3000 B.C., prosthetic devices have been used to address these issues by restoring both aesthetics and utility to those with disfigurement. Internationally, academic and industry researchers are constantly developing new materials and manufacturing techniques to provide higher quality and lower cost prostheses to those people who need them. New advanced technologies including 3D imaging, modeling, and printing are revolutionizing the way prostheses are now made. These new approaches are disrupting the traditional and manual art form of prosthetic production which are laborious and costly and are being replaced by more precise and quantitative processes which enable the rapid, low cost production of patient-specific prostheses. In this two part review, we provide a comprehensive report of past, present and emerging soft-tissue prosthetic materials and manufacturing techniques. In this review, part A, we examine, historically, the ideal properts of a polymeric material when applied in soft-tissue prosthetics. We also detail new research approaches to target specific tissues which commonly require aesthetic restoration (e.g. ear, nose and eyes) and discuss both traditional and advanced fabrication methods, from hand-crafted impression based approaches to advanced manufactured prosthetics. We discuss the chemistry and related details of most significant synthetic polymers used in soft-tissue prosthetics in Part B. As advanced manufacturing transitions from research into practice, the five millennia history of prosthetics enters a new age of economic, personalized, advanced soft tissue prosthetics and with this comes significantly improved quality of life for the people affected by tissue loss.

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Section: Prosthetic Hands and Fingersmentioning

confidence: 99%

Section: Prosthetic Hands and Fingersmentioning

confidence: 99%

Section: Prosthetic Hands and Fingersmentioning

confidence: 99%

See 1 more Smart Citation

Advancements in Soft-Tissue Prosthetics Part A: The Art of Imitating Life

Cruz

Ross

Powell

et al. 2020

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…13 Of course, it has shortcomings such as not adequately elastic in function, low edge strength and opacity. 11 Recently, some advanced silicone materials have become available for prosthesis such as silicone block copolymers, foaming silicones, etc which overcome the drawbacks of HTV silicones 14 .…”

Section: Class IVmentioning

confidence: 99%

Rehabilitation of an Amputated Finger- A Case Report

Sharma¹,

Baid²,

Lath³

et al. 2017

jemds

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BACKGROUNDAesthetic prosthesis offers psychological, functional and rehabilitative advantages. By restoring the natural appearance of hand and finger, the prosthesis eliminates the trauma caused by constant reminder of handicap and thus offers true psychological therapy. A precisely fitting finger prosthesis improves the function by restoring the normal length, maintaining sensitivity, protecting the sensitive stump, transmitting pressure and position sense and returning the patient's confidence. The definition of function here is an interesting one, because surely if a patient is using prosthesis for cosmetic reasons then it is serving a function. Although implant supported finger prosthesis definitely has a superior outcome, it is not advisable in all patients due to economic grounds. This article focuses a method of retaining finger prosthesis.

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“…But “cosmetics” is a vague notion, with little extant research to guide future prosthesis design. While it is well-known that color-matching to a patient's skin tone leads to greater device satisfaction (Derwentwood, 1917; Brown, 1947; Weinberg and De Hinrichs, 1952; Bryson, 1965; Newell et al, 1974; Pillet, 1983; Pohjolainen et al, 1990; Campbell et al, 1992; Pereira et al, 1996; Leow et al, 2006; Ehrsson et al, 2008; Kini et al, 2010), there is as yet only a few studies describing the importance of form factor on embodiment (Lamb, 2004; Kini et al, 2010; Jaidev et al, 2013; Raghu et al, 2013; Kamble et al, 2014). …”

Section: Introductionmentioning

confidence: 99%

Is the Prosthetic Homologue Necessary for Embodiment?

et al. 2016

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Embodiment is the process by which patients with limb loss come to accept their peripheral device as a natural extension of self. However, there is little guidance as to how exacting the prosthesis must be in order for embodiment to take place: is it necessary for the prosthetic hand to look just like the absent hand? Here, we describe a protocol for testing whether an individual would select a hand that looks like their own from among a selection of five hands, and whether the hand selection (regardless of homology) is consistent across multiple exposures to the same (but reordered) set of candidate hands. Pilot results using healthy volunteers reveals that hand selection is only modestly consistent, and that selection of the prosthetic homologue is atypical (61 of 192 total exposures). Our protocol can be executed in minutes, and makes use of readily available equipment and softwares. We present both a face-to-face and a virtual protocol, for maximum flexibility of implementation.

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Aesthetic finger prosthesis with silicone biomaterial

Cited by 18 publications

References 15 publications

Advancements in Soft-Tissue Prosthetics Part A: The Art of Imitating Life

Advancements in Soft-Tissue Prosthetics Part A: The Art of Imitating Life

Rehabilitation of an Amputated Finger- A Case Report

Is the Prosthetic Homologue Necessary for Embodiment?

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