3D scanning and geometry processing techniques for customised hand orthotics: an experimental assessment

Volonghi, Paola; Baronio, Gabriele; Signoroni, Alberto

doi:10.1080/17452759.2018.1426328

Cited by 47 publications

(37 citation statements)

References 21 publications

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“…No available researches were found regarding the use of the Structure Sensor in orthopaedic applications. Problems related to motion and deformation of the acquired data have been analysed by (Volonghi et al 2018), proposing and testing a deformable alignment algorithm both on static and real time acquisition with structured light devices.…”

Section: Overviewmentioning

confidence: 99%

Low-Cost 3d Devices and Laser Scanners Comparison for the Application in Orthopedic Centres

Redaelli

Barsanti

Fraschini

et al. 2018

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:Low-cost 3D sensors are nowadays widely diffused and many different solutions are available on the market. Some of these devices were developed for entertaining purposes, but are used also for acquisition and processing of different 3D data with the aim of documentation, research and study. Given the fact that these sensors were not developed for this purpose, it is necessary to evaluate their use in the capturing process. This paper shows a preliminary research comparing the Kinect 1 and 2 by Microsoft, the Structure Sensor by Occipital and the O&P Scan by Rodin4D in a medical scenario (i.e. human body scans). In particular, these sensors were compared to Minolta Vivid 9i, chosen as reference because of its higher accuracy. Different test objects were analysed: a calibrated flat plane, for the evaluation of the systematic distance error for each device, and three different parts of a mannequin, used as samples of human body parts. The results showed that the use of a certified flat plane is a good starting point in characterizing the sensors, but a complete analysis with objects similar to the ones of the real context of application is required. For example, the Kinect 2 presented the best results among the low-cost sensors on the flat plane, while the Structure Sensor was more reliable on the mannequin parts.

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Section: Overviewmentioning

confidence: 99%

Low-Cost 3d Devices and Laser Scanners Comparison for the Application in Orthopedic Centres

Redaelli

Barsanti

Fraschini

et al. 2018

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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“…Three dimensional scanning is one such method and provides high accuracy [ 11 ], reduces product waste, and improves quality [ 12 , 13 ]. It has a high capability to capture 3D measurement without physical contact [ 14 , 15 ] and minimize the need for messy plaster of Paris casting. Digital libraries of files are created, manipulated, and personalized to fit a patient’s unique needs with greater precision and ease [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

“…Despite its benefits to improve outcomes and use the contactless process of scanning to reduce cross-contamination [ 14 , 15 ], the use of digital technology is not without challenges to routine clinical care. There are often high capital costs in equipment and training, and concerns over the return of investment.…”

Section: Introductionmentioning

confidence: 99%

Leveraging Digital Technology to Overcome Barriers in the Prosthetic and Orthotic Industry: Evaluation of its Applicability and Use During the COVID-19 Pandemic

Binedell¹,

Wong²,

Blessing³

2020

JMIR Rehabil Assist Technol

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Background The prosthetic and orthotic industry typically provides an artisan “hands-on” approach to the assessment and fitting of orthopedic devices. Despite growing interest in digital technology for prosthetic and orthotic service provision, little is known of the quantum of use and the extent to which the current pandemic has accelerated the adoption. Objective This study’s aim is to assess the use of digital technology in prosthetics and orthotics, and whether its use can help overcome challenges posed by the current COVID-19 pandemic. Methods A web-based survey of working prosthetists, orthotists, and lower limb patients was conducted between June and July 2020 and divided into three sections: lower limb amputees, prosthetist and orthotist (P&O) currently using digital technologies in their practice, and P&O not using any digital technology. Input was sought from industry and academia experts for the development of the survey. Descriptive analyses were performed for both qualitative (open-ended questions) and quantitative data. Results In total, 113 individuals responded to the web-based survey. There were 83 surveys included in the analysis (patients: n=13, 15%; prosthetists and orthotists: n=70, 85%). There were 30 surveys excluded because less than 10% of the questions were answered. Out of 70 P&Os, 31 (44%) used digital technologies. Three dimensional scanning and digital imaging were the leading technologies being used (27/31, 88%), primarily for footwear (18/31, 58%), ankle-foot orthoses, and transtibial and transfemoral sockets (14/31, 45%). Digital technology enables safer care during COVID-19 with 24 out of 31 (77%) respondents stating it improves patient outcomes. Singapore was significantly less certain that the industry's future is digital (P=.04). The use of virtual care was reported by the P&O to be beneficial for consultations, education, patient monitoring, or triaging purposes. However, the technology could not overcome inherent barriers such as the lack of details normally obtained during a physical assessment. Conclusions Digital technology is transforming health care. The current pandemic highlights its usefulness in providing safer care, but digital technology must be implemented thoughtfully and designed to address issues that are barriers to current adoption. Technology advancements using virtual platforms, digitalization methods, and improved connectivity will continue to change the future of health care delivery. The prosthetic and orthotic industry should keep an open mind and move toward creating the required infrastructure to support this digital transformation, even if the world returns to pre–COVID-19 days.

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“…With the advent of 3D scanners, which are safe and convenient to use to measure a person's body shape, size, texture, colour and skin-surface area accurately, a new application is emerging, i.e. 3D scanning has a high capability of capturing 3D measurement [7]. Ji et al [8] obtained the data of concha cavity by 3D scanning technology, and classified the shapes of concha cavity, which was used in the earphone modeling design.…”

Section: Introductionmentioning

confidence: 99%

Research and Application of Ankle Morphological Changes and Classification

Zhang¹,

Xue

et al. 2020

E3S Web Conf.

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Because of the motion of ankle joint, the surface morphological changes. The relevant products including ankle brace, ankle boot, etc. with both important protective effect on ankle and comfort should be designed to match the ankle varies states. The samples data with 15° plantar flexion, 40° dorsiflexion and neutral position of lower limbs(N=105) were scanned. This study analyzed the feature of the ankle morphological changes and divided it into four parts: anterolateral (I), posterolateral (II), posteromedial (III) and anteromedial (IV). The anterior and posterior parts had large contraction and expansion during plantar flexion and dorsiflexion motions. The medial and lateral parts of ankle shape were asymmetric, but had equal skin areas. Therefore, the area of the entire ankle surface remained almost the same when morphological changes. We unified the data of the models and measured the distances of characteristic points. According to the main dimensions, the ankles were classified into 17 groups. The rigid brace design was taken as an example to fit mass ankles. It showed a great statistical comfort degree in total by the user experience and evaluation. The method combining with features of ankle morphological changes and shape classification was proved to be effective for the ankle related products design to fit mass ankles.

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3D scanning and geometry processing techniques for customised hand orthotics: an experimental assessment

Cited by 47 publications

References 21 publications

Low-Cost 3d Devices and Laser Scanners Comparison for the Application in Orthopedic Centres

Low-Cost 3d Devices and Laser Scanners Comparison for the Application in Orthopedic Centres

Leveraging Digital Technology to Overcome Barriers in the Prosthetic and Orthotic Industry: Evaluation of its Applicability and Use During the COVID-19 Pandemic

Research and Application of Ankle Morphological Changes and Classification

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