Lumbopelvic movement coordination during walking improves with transfemoral bone anchored limbs: Implications for low back pain

Gaffney, Brecca M.M.; Thomsen, Peter B.; Leijendekkers, Ruud A.; Christiansen, Cory L.; Stoneback, Jason W.

doi:10.1016/j.gaitpost.2024.02.015

Cited by 3 publications

(1 citation statement)

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“…Trajectory M and Trajectory E were measured at 55 mm and 15 mm, respectively, from the end of the femur. Figure 5B defines the names of the planes as interpreted in three dimensions: the sagittal plane is a vertical division longitudinally bisecting the body into left and right sections; the frontal plane is an anatomical boundary that separates the body into anterior (ventral) and posterior (dorsal) parts; the transverse plane is a horizontal division [49][50][51][52]. Figure 5C identified the knee movement at points in the transverse plane.…”

Section: Analysis Of Knee Movement In Artificial Bones Depending On T...mentioning

confidence: 99%

Shape Memory Alloys Patches to Mimic Rolling, Sliding, and Spinning Movements of the Knee

Seo,

Kang,

Han

2024

Biomimetics

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Every year, almost 4 million patients received medical care for knee osteoarthritis. Osteoarthritis involves progressive deterioration or degenerative changes in the cartilage, leading to inflammation and pain as the bones and ligaments are affected. To enhance treatment and surgical outcomes, various studies analyzing the biomechanics of the human skeletal system by fabricating simulated bones, particularly those reflecting the characteristics of patients with knee osteoarthritis, are underway. In this study, we fabricated replicated bones that mirror the bone characteristics of patients with knee osteoarthritis and developed a skeletal model that mimics the actual movement of the knee. To create patient-specific replicated bones, models were extracted from computerized tomography (CT) scans of knee osteoarthritis patients. Utilizing 3D printing technology, we replicated the femur and tibia, which bear the weight of the body and support movement, and manufactured cartilage capable of absorbing and dispersing the impact of knee joint loads using flexible polymers. Furthermore, to implement knee movement in the skeletal model, we developed artificial muscles based on shape memory alloys (SMAs) and used them to mimic the rolling, sliding, and spinning motions of knee flexion. The knee movement was investigated by changing the SMA spring’s position, the number of coils, and the applied voltage. Additionally, we developed a knee-joint-mimicking system to analyze the movement of the femur. The proposed artificial-skeletal-model-based knee-joint-mimicking system appears to be applicable for analyzing skeletal models of knee patients and developing surgical simulation equipment for artificial joint replacement surgery.

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Section: Analysis Of Knee Movement In Artificial Bones Depending On T...mentioning

confidence: 99%