View clinical trials related to Lower Limb Amputation.
Filter by:The aim of this study is to evaluate the effect of epidural oxycodone for pain management after lower limb amputation.
Current lower limb prostheses support ambulation by absorbing and stabilizing positions during walking. Users of lower limb prostheses rely solely on sensory information provided by the contact between the socket and the residual limb. Restoring sensory feedback could potentially improve their quality of life and participation in daily activities. Despite a high incidence of lower limb amputations, there are few studies in the literature addressing the restoration of sensory feedback in lower limb amputees, particularly studies utilizing invasive techniques. In an effort to overcome these limitations, various non-invasive methods have been tested. Despite resulting benefits such as improved gait symmetry and stability, most non-invasive stimulation systems are non-somatotopic, failing to generate a sensation referred to the patient's missing limb. From the literature, Transcutaneous Electrical Nerve Stimulation (TENS) emerges as a very promising non-invasive and somatotopically-based sensory feedback approach, capable of inducing sensations referred to the amputees' phantom limb. Therefore, the proposed study will involve the use of TENS as a means to stimulate sensitivity and prevent perceptual disturbances associated with the interruption of peripheral nerve structures occurring in individuals undergoing amputation. These disturbances, besides influencing the development of symptoms characterized by neuropathic pain, can impact prosthesis management.
The study will investigate the application of a non-pharmacological operant conditioning approach to reduce phantom limb pain (PLP). PLP afflicts 60-90% people who have lost a limb. It can last for years and lead to drug dependence, job loss, and poor quality of life. Current non-pharmacological interventions are encouraging but limited, and their efficacy remains unclear. Limb amputation is known to lead to abnormal sensorimotor reorganization in the brain. Multiple studies have shown that PLP severity is correlated with the extent of this reorganization. The current study will train participants via realtime feedback of brain responses to promote more normal sensorimotor response, with the goal to reduce phantom limb pain.
This prospective randomized controlled study will be conducted to evaluate the analgesic effect of continuous perineural infusion of methylene blue with bupivacaine on acute postoperative pain and to evaluate its preventive role against chronic phantom pain in patients undergoing lower limb amputation surgery
Brief Summary: The purpose of this study is to evaluate the effectiveness of neuromodulation for relief of phantom limb pain (PLP) using peripheral nerve (PNS) and spinal cord (SCS) stimulation with implantable electrodes. The researchers expect that PLP in patients with lower limb amputation will be relieved by peripheral nerve and the spinal cord stimulation. The possibility of finding EEG biomarkers for phantom pain will be explored.
Amputation is a life-altering event with an immediate and obvious effect on daily life activities and quality of life. Asymmetrical movements of the lower limbs and compensatory strategies during walking are associated with an elevated risk for developing deleterious secondary health conditions. It is well established that therapeutic gait training methods are effective in reducing spatiotemporal gait deviations and improving functional mobility. However, the littérature does not clearly indicate the best time to perform a gait training or which gait parameters predict it. The main aim of this study is to determinate the walking strategies of lower limb amputees in several locomotion tasks on daily life. Then, the investigators study the evolution of these walking strategies after a gait training and over time.
Lower limb amputation has a definitive impact on a person's locomotor abilities, considerably reducing his or her autonomy in everyday life. 50% of lower limb amputees in France are trans-femoral. The femoral prosthesis must be adapted to allow the amputee to walk in everyday situations and to make the range of activities practiced by non-amputees accessible to them. Sitting posture, which represents an important part of a day, must also be comfortable. Comfort will be closely linked to the socket, which ensures the transmission of the mechanical actions of the prosthesis to the body of the amputee through the residual limb. This must be done without damaging the integrity of the biological tissues at the interface. The challenge is therefore to transmit the mechanical actions inherent to the use of the prosthesis while being as comfortable as possible. The most common form of femoral socket is the one with included ishions, which by its structure limits the rotation of the socket around the residual limb. However, it limits hip joint amplitudes, which significantly impacts comfort during walking, especially when the individual must evolve in constraining environments (irregular terrain, slopes, uphill, downhill). Comfort is also limited when putting the prosthesis in place and when sitting, because of the limits of the socket that go up into the groin and the buttock. Discomfort can also be induced by contact and clamping surfaces. Only 42% of amputees are satisfied with their sockets. An uncomfortable or wound-inducing brace will not be worn or will be worn only a little, which can increase the risk of comorbidities. One solution to the comfort issue could be the Access Socket (AS) soft socket, which is exactly the same shape and manufacturing principles as the Rigid Included Carbon Socket (ER), but combines a rigid structure with soft areas. These soft areas allow pressure to be distributed within the socket, allowing for some deformation, while maintaining the mechanical properties necessary for walking. The objective of this study is to compare the comfort perceived by amputees when wearing an AS soft socket versus their RE, both sockets being mounted identically on the patients' usual medical devices. The hypothesize is that scores on the various comfort, satisfaction, and mobility scales should be better when patients wear the soft socket compared to the rigid socket. In this multicenter, randomized, cross-over study, patients will wear the rigid socket and then the access-socket (or vice versa), over a 4-week period for each socket. The two sockets will have an identical shape and will be mounted in the same way on the patients' medical device. At the end of each 4-week period, patients will fill out self-questionnaires (PEQ, SCS, PLUS-M, ESAT and SF-36) to evaluate their comfort, satisfaction and ambulation.
Mobility is one of the most important factors in the quality of life of people with a lower-limb amputation. However, mobility and physical activity are often limited. 61% of amputees is not sufficiently active in daily life and only about 15% of the Dutch amputees regularly participates in sports. Physical inactivity is known to increase the risk of comorbidities, especially among amputation patients who already have a higher prevalence of vascular diseases, diabetes and osteoarthritis. It is clear that sufficient daily physical activity is important to optimize the health and quality of life of amputees. Research has shown that higher aerobic capacity, higher muscle force and the absence of comorbidities are related to better walking ability, as walking is more energy consuming for people with an amputation. It is therefore expected that increasing strength and cardiovascular fitness results in better mobility, higher daily activity, better physical health and a better quality of life among amputees. To improve physical capacity and sports participation in people with a lower-limb amputation, the Sint Maartenskliniek (Nijmegen, The Netherlands) and Dutch football club N.E.C. Nijmegen developed a new exercise program: Fit en Vitaal. Participants perform a six-week training program with three training sessions each week (fitness, aqua-fitness and a sports and play session) under the guidance of movement agogue. Thereafter, they continue with a low-frequency movement intervention during which they attend various sports clinics once a week for eight months. As social support and contact with peers are important factors in sports participation for amputees, the Fit en Vitaal program was designed as a yearly returning program with a fixed group of participants at the start of each year. This exploratory study aimed to evaluate both the direct and indirect effects of the Fit en Vitaal program on people with a lower-limb amputation in terms of walking ability, functional mobility, oxygen consumption during walking, daily physical activity at home and experienced quality of life. It is expected that all will improve after the first six weeks of training, and the effects will remain after the eight-month low-frequency training.
This is a feasibility study about implementing and using the KinetiGait gait analysis system in clinical practice to enhance the rehabilitation of service members with lower limb disfunction. There will be questionnaires completed by participants and surveys completed by both participant and provider.
The aim of the study is to assess various aspects of reliability and validity of two sit-to-stand tests, the Five Times Sit to Stand Test (5TSTS) and the 30-Second Sit to Stand Test (30SSTS). The tests will be performed by patients after lower-limb amputation who have been newly fitted with a prosthesis. Each test will be performed with and without the prosthesis on two occasions: on the first day when the patients will be able to walk independently with their prosthesis and two weeks later. On the same two occasions, the patients will also perform three walking tests (in randomised order): the L-test, the 10-Metre Walk Test and the 6-Minute Walk Test. In addition, the patients will repeat the 5TSTS and the 30SSTS one day after the first assessment. The results will be used to detect the presence of a floor effect, assess repeatability and concurrent validity, as well as estimate minimal detectable change and effects size for the effect of rehabilitation.