Söderberg B, Guerra G, Fagerstrom T, Permpool K, Phaipool S
Centre of Excellence for Prosthetics and Orthotics, Scandinavian Orthopaedic Laboratory, Bangkok, Thailand.
Sirindhorn School of Prosthetics and Orthotics, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Can Prosthet Orthot J. 2020 Mar 10;2(2):33505. doi: 10.33137/cpoj.v2i2.33505. eCollection 2019.
Transtibial prosthesis socket trim lines have remained fairly consistent over the past decade, and based on methods such as a supracondylar cuff suspension. However, with vacuum suspension methods, trim lines can change.
An objective of this technical note was to inform practitioners how to fabricate a socket in a better way. A step-by-step fabrication guide is provided for the prosthetist.
A unilateral transtibial amputee was selected for this technical note. We provide a detailed description of the different steps of fabrication as well as patient feedback. The fabrication involved fabrication of a vacuum socket using Pre-preg carbon fiber and anti-bacterial Ethylene-Vinyl-Acetate (EVA), as a proximal flexible brim.
The properties of EVA and Pre-preg carbon fiber allow for fabrication of a transtibial socket with a flexible proximal brim. The new design resulted in greater comfort and increased range of motion in the patient studied. The patient subjectively noted enhanced squatting and cycling capabilities while using the updated socket and flexible proximal brim.
This technical note presented a fabrication guide for a new style of socket and preliminary patient feedback. Clinical studies evaluating functional and biomechanical effects of this new socket design are needed.
在过去十年中，经胫骨假肢接受腔的修整线一直保持相对稳定，其依据是诸如髁上袖套悬吊等方法。然而，采用真空悬吊方法时，修整线可能会发生变化。
本技术说明的一个目的是告知从业者如何以更好的方式制作接受腔。为假肢技师提供了一份逐步制作指南。
为本技术说明选择了一名单侧经胫骨截肢者。我们详细描述了制作的不同步骤以及患者反馈。制作过程包括使用预浸碳纤维和抗菌乙烯 - 醋酸乙烯酯（EVA）制作一个真空接受腔，作为近端柔性边缘。
EVA和预浸碳纤维的特性使得能够制作出带有柔性近端边缘的经胫骨接受腔。新设计在研究的患者中带来了更大的舒适度并增加了活动范围。患者主观上注意到在使用更新后的接受腔和柔性近端边缘时，蹲坐和骑行能力有所增强。
本技术说明介绍了一种新型接受腔的制作指南以及初步的患者反馈。需要进行临床研究来评估这种新接受腔设计的功能和生物力学效果。
