Abstract:
BACKGROUND AND AIM:Partial hand amputations are common in developing countries and have a negative impact on patients and their families' quality of life. The uniqueness of each partial hand amputation, coupled with the relatively high costs of prostheses, makes it challenging to provide suitable prosthetic solutions in developing countries. Current solutions often have long lead times and require a high level of expertise to produce. The aim of this study was to design and develop an affordable patient-specific partial hand prosthesis for developing countries. TECHNIQUE:The prosthesis was designed for a patient with transmetacarpal amputation (i.e. three amputated fingers and partial palm). The final design was passive, controlled by the contralateral hand, and utilized the advanced flexibility properties of thermoplastic polyurethane in a glove-like design that costs approximately 20 USD to fabricate. Quantitative and qualitative tests were conducted to assess performance of the device after the patient used the final design. A qualitative assessment was performed to gather the patient's feedback following a series of tests of grasp taxonomy. A quantitative assessment was performed through a grasp and lift test to measure the prosthesis' maximum load capacity. DISCUSSION:This study showed that the prosthesis enhanced the patient's manual handling capabilities, mainly in the form of grasp stability. The prosthesis was light weight and could be donned and doffed by the patient independently. Limitations include the need to use the contralateral hand to achieve grasping and low grasp strength. CLINICAL RELEVANCE:Persons with partial hand amputation in developing countries lack access to affordable functional prostheses, hindering their ability to participate in the community. 3D-printed prostheses can provide a low-cost solution that is adaptable to different amputation configurations.
journal_name
Prosthet Orthot Intjournal_title
Prosthetics and orthotics internationalauthors
Alturkistani R,A K,Devasahayam S,Thomas R,Colombini EL,Cifuentes CA,Homer-Vanniasinkam S,Wurdemann HA,Moazen Mdoi
10.1177/0309364620905220subject
Has Abstractpub_date
2020-04-01 00:00:00pages
92-98issue
2eissn
0309-3646issn
1746-1553journal_volume
44pub_type
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