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Идёт набор NCT07613502

Bio Leg: Advancing Mobility (BAM)

Без фазы С лечением Amputation of Lower Limb Above Knee Amputee Amputation

Ориентир для пациента и семьи

Простыми словами

Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.

Что изучают
В протоколе указаны: Bio Leg.
Кому может быть актуально
Состояния в реестре: Amputation of Lower Limb Above Knee, Amputee, Amputation. Базовые параметры: 40 лет — 70 лет · Все.
Что важно проверить
Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
Где проводится
США
Следующий шаг
Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →

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Официальное название

Adaptive Mobility Technology: A Comparative Study of C-Leg and Bio Leg

Обзор

Following transfemoral amputation, regaining functional mobility, particularly the ability to navigate curbs, ramps, long distances, and the ability to stand is challenging and often unattainable. Use of advanced prosthetic limb technology can dramatically influence mobility outcomes. The purpose of this study is to compare walking function in individuals with transfemoral amputations who are current users of the C-leg (micro-processor controlled prosthetic knee; current clinical standard) to function achieved when using the Bio Leg powered micro-processor prosthetic knee.

Подробное описание

Although microprocessor-controlled knees (MPK) such as the C-Leg have demonstrated clear benefits over non-microprocessor-controlled prosthetic knees, it remains unclear whether powered knee assistance provides additional advantages in movement quality, metabolic efficiency, and limb loading during walking adaptability tasks.

This study directly addresses this gap by comparing mobility using the Bio Leg to mobility with the C-Leg using outcome measures that reflect real-world mobility challenges.

By generating objective evidence on whether powered knee assistance improves biomechanics, efficiency, and stability beyond that achieved with an established MPK, this study will inform prosthetic prescription, rehabilitation strategies, and payer decision-making. Given the growing population of individuals living with transfemoral amputation, identifying technologies that support safe, efficient, and confident mobility has important implications for community participation, long-term musculoskeletal health, and quality of life.

This study uses a within-subject repeated-measures design in which each participant is assessed under two conditions: current prosthesis and the Bio Leg prosthesis. All primary and secondary outcomes will be analyzed as within-participant differences, with each participant serving as their own control.

Вмешательства

  • Устройство Bio Leg
    After completing biomechanics and clinical testing at Pre Assessment with their C-Leg, participants will be fitted with a Bio-Leg prosthesis at the prosthetist clinic. The participant will train and use the Bio-Leg prosthesis during a 4-6 week acclimation period. The participant will then complete the same biomechanics and clinical testing at Post Assessment.

Первичные конечные точки

  • Change in 6-Minute Walk Test (6MWT) [Срок оценки: Baseline, 4-6 weeks]
  • Change in Interlimb Symmetry (Ground Reaction Forces) [Срок оценки: Baseline, 4-6 weeks]
  • Change in Metabolic Efficiency (O2/kg/m) [Срок оценки: Baseline, 4-6 weeks]

Критерии участия

Критерии включения

  • Adults 40 to 70 years of age
  • Unilateral transfemoral amputation > 1 year
  • K3 or K4 ambulator (based on the K classification system) and able to walk with no greater assistances than a single point cane
  • Current microprocessor-controlled prosthesis (C-leg) user with > 6 months experience and able to walk without a device of using a single point cane
  • Able to give informed consent

Критерии исключения

  • Severe cardiovascular condition or other disease limiting study participation
  • Skin lesions or wounds, acute or unstable fracture, diagnosis of osteoarthritis or bone impairments affecting safe participation in walking activities
  • Residual limb dysfunction (i.e. joint contracture) limiting mobility or study participation
  • Pain that limits walking of participation in walking activities
  • Current participation in rehabilitation to address walking function

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Распределение
Нерандомизированное
Модель
Перекрёстный дизайн
Маскирование
Открытое
Основная цель
Лечение

Центры проведения

США · 1 центр
  • Brooks Rehabilitation — Jacksonville

Идентификаторы

NCT: NCT07613502 · IRB202600203

Первоисточники (государственные реестры)

Открыть это исследование на ClinicalTrials.gov ↗