Feasibility of designing, manufacturing and delivering 3D printed ankle‐foot orthoses: a systematic review

Wojciechowski, Elizabeth; Chang, Angela A.; Balassone, Daniel; Ford, Jackie; Cheng, Tegan L.; Little, David; Menezes, Manoj P.; Hogan, Sean M; Burns, Joshua

doi:10.1186/s13047-019-0321-6

Cited by 67 publications

(61 citation statements)

References 30 publications

(186 reference statements)

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“…printing of AFOs in CMT populations. 23 Another aspect of AFO design that could benefit from further study is the effect of design on putting on and taking off the device. with and without their AFOs.…”

Section: Discussionmentioning

confidence: 99%

Satisfaction with ankle foot orthoses in individuals with Charcot‐Marie‐Tooth disease

et al. 2020

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Background: Ankle foot orthoses (AFOs) are commonly prescribed to individuals with Charcot-Marie-Tooth disease (CMT). The aim of this study was to evaluate patient reported satisfaction with orthotic devices and services in individuals with CMT to provide preliminary data for advancing AFO development and improving clinical care. Methods: The Orthotics and Prosthetics Users Survey was distributed via e-mail through the Inherited Neuropathy Consortium (INC) Contact Registry and includes 11 device-specific questions and 10 service-related questions. Participants were also asked open-ended questions about their experiences with AFOs. Results: Three hundred and fourteen individuals completed the survey. Over one-third of participants provided negative responses, including dislike of AFO appearance, discomfort, abrasions or irritations, and pain. Ratings of orthotic services were generally positive. Conclusions: Lower scores related to discomfort, abrasions and pain identified areas for AFO improvement. Continued research in these areas will be beneficial to informing and advancing AFO development and improving clinical care.

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Section: Discussionmentioning

confidence: 99%

Satisfaction with ankle foot orthoses in individuals with Charcot‐Marie‐Tooth disease

et al. 2020

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“…It is becoming an accessible and widespread technology, which has demonstrated numerous applications within medicine, from surgical planning 3 , education 4 , prostheses 5,6 and drug delivery 7 . 3D printed orthotic devices can be made to have comparable biomechanical properties to traditionally manufactured devices, with potential for fine control over these properties [8][9][10][11] . Orthotic designs made via computer-aided design (CAD), can be widely distributed through large open-source communities and then customised by the end-user 12 , allowing adjustment of the resulting model to meet the user needs.…”

mentioning

confidence: 99%

A digital workflow for design and fabrication of bespoke orthoses using 3D scanning and 3D printing, a patient-based case study

Hale

Linley

Kalaskar

2020

Sci Rep

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This study demonstrates the development and application of a novel workflow for designing and fabricating orthoses, using a combination of 3D scanning and 3D printing technologies. The workflow is applied to a clinically relevant translational case study in a patient with a neurological disorder and complex clinical needs. All traditional and commercial approaches to helping the patient's cervical instability and resulting 'head-drop' had previously failed, with associated progressive deterioration in the patient's clinical state and posture. The workflow was developed to design and fabricate a bespoke device for this patient with no viable alternative therapy. The workflow was developed to generate 3D printable geometry from obtained 3D scan data. The workflow includes algorithms to relax geometry, distribute material efficiently and for variational cutting of orthosis padding material. The 3D patient scan was validated against actual measurements to ensure accuracy of measurements. A total of four prototypes were produced with each iteration being improved based on patient and clinical feedback. There was a progressive improvement in subjective feedback through each iteration at sites of discomfort and overall comfort score. There was a marked improvement in the patient's posture with correction at the cervical and lumbar spine with the 3D-printed padded collar being worn for 4 hour periods. This study has implications for the rapid production of personalised orthoses which can help reduce patient waiting time, improve patient compliance, reduce pain and reduce further deterioration. The workflow could form the basis for an integrated process, whereby a single hospital visit results in a bespoke orthosis optimised and personalised for each patient.

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“…3D printing enables design freedom by facilitating deviation from traditional design paradigms and hence allows the development of patient-specific orthosis. [ 4 , 32 ] In our case, the 3D-printed wrist orthosis was personalized by using CT-scanned 3D images and was printed out using thermoplastic polyurethane filament by a 3D printer. An AFO manufactured by 3D printing had a unique design considering a progress direction of foot center of pressure during gait cycle.…”

Section: Discussionmentioning

confidence: 99%

The functional effect of 3D-printing individualized orthosis for patients with peripheral nerve injuries

Chae¹,

Kim

Kang³

et al. 2020

Medicine

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Rationale: In the medical field, the use of 3-dimensional (3D) printing is increasing explosively and it is especially widespread in the clinical application of fabricating orthosis. Advantages of 3D-printed orthosis compared to conventional ones include its lower cost, easier modification, and faster fabrication. The 3D-printing technique makes it possible for physicians to easily create individual-tailored products. Recently, many kinds of orthosis through 3D printing have been studied and used. The knee orthosis, ankle-foot orthosis, wrist orthosis, hand orthosis, and foot orthotics are examples used in the rehabilitation fields of orthotics. We reported 3 cases of 3D-printed orthoses in patients with peripheral nerve injuries. Patients concerns: In spite of the rapid development of the clinical use of 3D printing, to our knowledge, its application to patients with peripheral nerve injuries has not yet been reported. Two patients suffered from upper limb problems and 1 patient had a foot drop associated with peripheral nerve injury. Diagnosis: Three patients diagnosed with median neuropathy, ulnar neuropathy, and right lower lumbar radiculopathy, respectively, by electromyography. Interventions: Herein we present 3 case reports of patients with peripheral nerve injuries whose orthotic needs were fulfilled with the application of 3D-printed wrist orthosis and ankle-foot orthosis. Outcomes: For hand function evaluation, we assessed the Jebsen–Taylor hand function test. Grasp and pinch powers were assessed by a hand dynamometer before and after orthosis application. For lower limb functional evaluation, we used a 6-minute walking test and modified Emory Functional Ambulation Profile for ambulatory function. Lessons: The 3D-printed orthosis could help functional improvement in patients with peripheral nerve injuries.

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Feasibility of designing, manufacturing and delivering 3D printed ankle‐foot orthoses: a systematic review

Cited by 67 publications

References 30 publications

Satisfaction with ankle foot orthoses in individuals with Charcot‐Marie‐Tooth disease

Satisfaction with ankle foot orthoses in individuals with Charcot‐Marie‐Tooth disease

A digital workflow for design and fabrication of bespoke orthoses using 3D scanning and 3D printing, a patient-based case study

The functional effect of 3D-printing individualized orthosis for patients with peripheral nerve injuries

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