فهرست نشریات علمی دسترسی آزاد ایران

Background and Objectives: In low and middle-income countries, there are high rates of transtibial amputations due to trauma. However, the low satisfaction with patellar tendon-bearing (PTB) socket fitting contributes to a low percentage of prosthesis users in these regions. The experience of a prosthetist is crucial for successful socket fitting. This study aimed to describe a mold modification characteristics performed by a skilled prosthetist to reduce the reliance on individual prosthetist skill.   Methods: To describe mold modification characteristics, scans were taken of the stump and socket of 5 individuals with transtibial amputations who received prostheses from a skilled prosthetist and reported satisfaction. Geometric differences between stump and socket scans were investigated. The study examined mold modifications in weight-bearing areas, including the mid patellar tendon (MPT), popliteal fossa (PF), lateral tibial flare (LTF), medial tibial flare (MTF), and non-weight-bearing areas, such as the fibular head (FH), distal anterior of tibia (DAT), distal posterior of tibia (DPT), and tibial crest (TC).   Results: The study found that in the FH, DAT, DPT, and TC regions, the socket height exceeded the stump by 1.2 mm, 8.8 mm, 6.8 mm, and 4.2 mm, respectively. In the PF, MPT, MTF, and LTF regions, the socket depth exceeded the stump by 9.3 mm, 10.3 mm, 4.1 mm, and 4.8 mm, respectively.   Conclusion: This descriptive study and the identified patterns represent an initial step toward defining characteristics for an appropriate socket design. This knowledge can help mitigate the impact of individual prosthetist skill on socket fit satisfaction.