Poster Session|Amputation/Prothetik
Prothetik

Zusammenfassung: Despite frequent colonization of the skin/implant interface by potentially virulent bacteria, such as Staphylococcus aureus (S. aureus), and bacteria associated with biomedical device infections, such as Coagulase-negative staphylococci (CoNS), this method gives rise to few severe infections.

Zusammenfassung: We show that it is possible to process nerve signals to control complex motions of a human-like robot hand in real time. The hand reacts with movement patterns induced by the class and frequency of the nerve signal. These are excellent qualifications for applications in the field of hand prosthetics.

Zusammenfassung: During the alignment of a modular trans-tibial prosthesis, the prosthetic foot is externally rotated relative to the plane of walking progression for functional and cosmetic reasons. This study measured the mechanical behaviour of three prosthetic feet at four different toe-out angles.

Zusammenfassung: Electromagnetic compatibility of myoelectrode amplifiers for prosthetic control is important for safe operation in electrically noisy conditions. Factors affecting susceptibility to interference (impedance, common mode rejection ratio (CMRR) and isolation) were studied using a commercial amplifier.

Zusammenfassung: A new electromechanic device that actuates the humeral intra/extra rotation of upper limb myoelectric prostheses is presented. The main element of the kinematic chain is a special planetary geartrain that allows respecting the required performance and limiting the mechanism global size and mass.

Zusammenfassung: In this research,logistic analysis showed that physical fitness was the most important predicting factor,and the ability to sustain an exercise intensity of 53.9% VO2max can be regarded as a guideline value for the level of fitness required for successful prosthetic ambulation in geriatric amputees.

Zusammenfassung: Dynamic Casting System（DCS） was developed to shorten the long length of time for making an artificial leg, by applying powder technology. The socket shape modeling including test walking was completed in 40 minutes in 10 trans- tibial amputees and practical socket shapes were obtained.

Zusammenfassung: A new technology has been developed to address prosthetic comfort and stability via changing the GRF. This technology when applied to a composite design foot leads to subjective improvements in stability and comfort. Biomechanical analysis indicates a possible explanation for this improvement.

Zusammenfassung: A pilot study to explore the relationship between temporospatial gait measures, gait variability measures, and balance confidence. Preliminary results with 19 people with unilateral lower-limb amputations indicate that there are strong relationships between balance confidence and gait measures.

Zusammenfassung: Two osseointegrated transfemoral implant systems have been investigated to evaluate the current manufacturers specified tightening torque of 12Nm. Results suggest tightening the assembly beyond this recommendation may increase assembly strength.

Zusammenfassung: Thermoplastics and fiber-reinforced plastics have been used as socket materials for limb prostheses. Among them, fabrics such as glass or carbon fiber have been popular, but they are expensive and cause skin trouble during working. We attended to adopt a new woven fabric material as socket material.

Zusammenfassung: Trip recovery in transfemoral amputees was tested for 3 different types of prosthetic knee joints. The protocol was able to detect relevant differences in trip recovery between prosthesis conditions. However, in MFCL-2 amputees, walking speed and perceived stability should be taken into account.

Zusammenfassung: Abstract

Zusammenfassung: Follow up of a cohort of predominantly lower limb amputees over 2 years, found that the incidence of anxiety and depression was initially high and reduced gradually from 14.7 and 16.3% to 10.8 and 9.5% for depression and anxiety respectively. There was however no association with mortality.

Zusammenfassung: We made an experiment to analyze the process of TF prosthetic gait training. We made the kinematic, physiologic and metabolic measurement. We could distinguish the difference in the voluntary control means of the knee during stance phase, decrease of energy expenditure and increase of walking speed.

Zusammenfassung: The study decribes the adjustment strategies that subjects with a recent lower limb amputation developped in obstacle crossing, gait initiation and gait termination during the rehabilitation process. Innovations in prosthetic design or training methods may ease the learning process of these tasks.

Zusammenfassung: The study aims to improve the functionality of the ICRC’s trans-femoral prosthetic knee joint. Knee stability was provided using a prototype Wedgelock unit. The free-swing motion of the ICRC’s knee joint was analysed using computer simulation.

Zusammenfassung: This work investigates the application of topology optimization to prosthetic design, and details the structural optimization of a new prosthetic knee joint. A material reduction of 14% was achieved along with a decrease in overall deflection and a final design suitable for injection molding.

Zusammenfassung: Prosthetic alignment is a process based on subjective evaluation by the prosthetist and the patient. One way of objectifying this process is to measure the load between the foot and the insole. Misalignments of the prosthesis length or prosthetic foot position increase loading in unaffected limb.

Zusammenfassung: The objective of this study is to find design shape of keels for prosthetic foot which have a good active In this study we would find proper design shapes of keels have a good active performance by comparing the finite element analysis results with the experimental results of commercial active foot.

Zusammenfassung: To assess the effect of a lightweight prosthetic knee, we composed a single-blinded study with 4 transfemoral or knee disarticulation amputees, replacing their knee of stainless steel by the same knee of titanium. The assessment (walking speed and experienced weight) was feasible and sufficient.

Zusammenfassung: Balance control on a moving platform was tested in unilateral lower limb amputees and able-bodied subjects. The results indicate that amputees compensate for the loss of ankle strategy by increasing movements and loading in the non-affected limb.

Zusammenfassung: Contribution of thigh and pelvis to the center of gravity (CG) velocity coused difference between prosthetic side and that of sound side during trans-femoral(TF) amputtee running. These results indicated that this technique used in predicting on the segment a contribution to the CG velocity.

Zusammenfassung: WHO:‘‘Drug is a chemical substance, such as a narcotic or hallucinogen, that affects the central nervous system, causing changes in behavior , personality and perception”.The most difficult complications are occlusions of blood vessels, gangrene, amputation on different levels and mortality.

Zusammenfassung: A description of the activity of the "Centro Protesi INAIL" in design and application of prosthetic devices for sports. Devices tests in applications for Paralympics athletes Test results

Zusammenfassung: The Endolite Echelon foot is designed to passively realign during walking in order to adapt to the terrain underfoot. This investigation aims to quantitatively assess the effect of passive realignment on the prosthetic socket interface pressures and gait.

Zusammenfassung: Forced swing measurements showed hydraulic properties during knee flexion of a newly developed 6-bar prosthetic knee joint, which were compared with those of conventional knee joints. The results suggested that the developed knee joint could reduce an amputee’s burden and enhance a cadence response.

Zusammenfassung: In Japan, we have the life style without shoes in door. This time, we devised about the lower limb prostheses for long stumps. In result, the present prostheses for 2 cases were useful.

Zusammenfassung: The purpose of this research is improvement of the socket discomfort for perspiration. We developed the superabsorbent polymer socket interface by employing the electrospinning technology. Use of the developed interface decreased the moisture percentage of the skin of the stump.

Zusammenfassung: Summary This report describes SNMRC guideline for prosthetic knee tests in Thailand, aims to assess mechanical properties required in ISO 10328:2006 and function of new designed prosthetic knee by observation, optoelectronic motion analysis system and questionnaires to promote development of prosth

Zusammenfassung: This study examines the progressions and trends of selected settings programmed into the Power Knee™ of seven male Service Members with a transfemoral amputation. The objective is to increase our understanding of how to optimize the programming of the knee in order to enhance the subject’s gait.

Zusammenfassung: Mentally retarded patients with amputation on different levels requires specific treatment. Key words: amputation, prosthetic rehabilitation, mental retardation.

Zusammenfassung: Recently,there are some above knee unilateral amputees who have eccountered with pelvic tilt abnormalities and secondery problems after using prosthesis. Since prosthetic knee joint has basic role in prosthetic gait pattern,to find solution, it was decided that flexion-extension resistance of knee joint is changed and its effects on pelvic tilt on both sides(sound and prosthetic sides)in three planes was studied through VICON motion analyzersystem during amputee walking.

Zusammenfassung: This study analyzed benchmarks and simulation performance of exterior-rotor and interior-rotor motors performing typical prosthetic elbow and hand tasks. Exterior-rotor motors were found to be stronger and more efficient than conventional interior-rotor motors used in existing prostheses.

Zusammenfassung: Pressure and balance of transfemoral amputees’ was compared with non amputee subjects. 9 amputees and 19 controls walked over 8m walkway w/a pressure and a force plate placed in the middle. Results showed significant differences on COF distance, ∆X, ∆y, Max/MIN AP, Min ML, stance time and impulse.

Zusammenfassung: In this research project we focus on the diverse motor strategies of amputee patients facing a complex motor task or challenging environment. We aim at identifying those major biomechanical parameters that contribute to successful balance recovery and control.

Zusammenfassung: This study will present current issues facing transfemoral amputees and the limitation of prosthetic knee controls. The outcome of a solution through development of smart control device is presented. The key principle is to closely match the knee control function to individual amputees needs.

Zusammenfassung: A plaster wrap produces a cylindrical socket. Bone is centered in tissue which must move before pushing the socket wall. In a compression stabilized (CS) socket, 4 longitudinal areas compress tissue between the socket wall and the bone to reduce lost motion as the bone moves toward the wall.

Zusammenfassung: A new voluntary opening-closing terminal device is described that combines a simple mechanism with a compact size. Analysis of the design and an initial prototype has shown that although the concept has promise, there are still substantial hurdles to overcome before clinical implementation.

Zusammenfassung: Patient mobility and technical development of prosthetic components are closely connected. This gait simulator will establish the performance potential and the safety reserves of cost-intensive components. Simulation of a five-year history of walking can thus be achieved in six weeks of testing.

Zusammenfassung: We discuss how the inherent asymmetry of the locomotor system in lower limb amputees affects the variability and symmetry of roll-over shapes of transtibial and transfemoral amputees during steady-state walking.

Zusammenfassung: The limited range of motion in prostheses requires novel benchmarks to optimize motor design. Speed ratio is mathematically shown to capture the required characteristics. Simulations show that it is a better predictor of motor success than conventional benchmarks.

Zusammenfassung: The study shed light on quality of life and prosthetic user satisfaction between children in Norway and Cambodia. We have used 2 questionnaires and the results give a clear indication of higher QoL within Norwegian children. Cambodian children score higher on user satisfaction with the prosthesis.

Zusammenfassung: Sweat at the stump socket interface is known as being an issue with modern impervious liners, especially in hotter climates or when activity above the norm is undertaken. The Author reports here findings from several experimental investigations to remove sweat from the stump socket interface.

Zusammenfassung: This presentation will suggest criteria for appropriate selection of ProDigits. Individual cases will be presented to demonstrate the functional potential of powered finger fittings for this challenging patient population.

Zusammenfassung: The use of HCR silicones has been shown to be advantageous for use in upper extremity prosthetics. These materials offer new ways to fabricate both the socket interface as well as some of the structural components. Users report improvement in comfort and suspension of their prosthesis.

Zusammenfassung: Preliminary effect of silicone liners on reducing post-operative edema among amputees was evaluated. Subjects who used silicone liners experienced greater volume reduction than those using compression socks. Expediting volume reduction could decrease fitting time, hospital stay and associated costs.

Zusammenfassung: The aim of this work was to conduct a structured review of the international literature on motivations and barriers to participation in exercise and sport within the prosthesis user population.

Zusammenfassung: Five commercially available voluntary closing terminal devices were mechanically tested, three hands and two hooks. Hands require more mechanical work than hooks. The TRS hook can be operated without getting fatigue. For the other devices the time over which the force can be maintained is limited.

Zusammenfassung: HYSCOM knee joint with stance and swing motion control system utilizing a developed compact MR fluid brake has been developed, and the details of the knee design and control system and the field walking test results on some individual TF amputees are reported.

Zusammenfassung: The purpose of this study is to present the patterns of shoe pressure parameters in amputees gait. Five subjects walked three times with each leg over a pressure plate. Results showed differences between both legs and among feet zones.

Zusammenfassung: Two osseointegrated transfemoral implant systems have been investigated to evaluate the implications of raising the tightening torque beyond the current manufacturers specified tightening torque of 12Nm. Results suggest increased torque may increase assembly strength and response to loading.

Zusammenfassung: Shoes limit the deformation possibility of prosthetic feet in the heel area which influences their properties depending on the style of construction of the prosthetic foot. Prosthetic feet with a cushioned heel are more influenced by shoes than carbon prosthetic feet which deform inside a cosmesis.

Zusammenfassung: Who can really benefit from a C-leg is a question still debated. A simple gait analysis protocol to be used in the clinical routine was defined to study the variations induced by the C-leg on the gait of amputees coming from mechanical knees. A pilot study proved the applicability of the protocol.

Zusammenfassung: The i-LIMB,a multi articulated prosthetic hand is compared to the DMC plus hand in a test procedure executed by a 45-year old man, to determine the added functionality of the device. We found no clear functional advantage and concluded that the patients´needs should determine the type of prosthesis.

Zusammenfassung: The relationship between the mechanical behaviour of a trans-tibial prosthesis and user performance is still not well understood. This study involved a controlled investigation of the effects of varying prosthetic mechanical properties on user performance using a purpose-built adjustable prosthesis.

Zusammenfassung: The gait of a patient with a hemipelvectomy was compared when using differing prosthetic components. The gait was improved when a microprocessor-controlled knee was used in conjunction with a polycentric hip.

Zusammenfassung: This presentation will focus on the early keib phase fitting experiences with the Otto Bock Axon Bus Prostheses System with Michaelangelo.

Zusammenfassung: We have a patient here with some acute problem and we tried to fit a suitable prosthesis for him In this progress. We consulted each other a lot and we successes to fine some solution for improving sitting and walking in the patient.

Zusammenfassung: Selection of socket has important role in fitting above knee prosthesis. This study shows comparison of Sealin silicon sockets with common sockets in mobility and fitting of prosthesis in above knee amputees. We found some useless and useful points of Sealin sockets.

Zusammenfassung: Mass and costs are decisive factors in the use of hook prostheses. Paperboard is considered a reliable, lightweight, and low cost construction material. To demonstrate the feasibility of using paperboard materials in prosthetics an adult size body-powered hook prosthesis has been made.

Zusammenfassung: The purpose of this study was to determine the relationship between stump hygiene and stump skin diseases in war-related bilateral lower limb amputees.

Zusammenfassung: The upper limb is as a device for communicating and having influence on environment Prevalence of bilateral upper limb amputation is lower than unilateral study shows effect of using upper limb. Decreasing pain ,healing , protection of stump sensation , increasing psychical adaption with amputation

Zusammenfassung: We have developed the NAL-Knee (Natural Automatic Lock Knee) for use in trans-femoral prostheses, enabling users to ascend and descend stairs. Our oxygen uptake evaluation proved that the NAL-Knee offers merits for not only descending stairs, but also ascending stairs.

Zusammenfassung: Pattern recognition involves “learning” the nature of the muscle contraction patterns for a specific user. This control can be applied to a multifunction hand-wrist system to allow easier access to each of the different movements, without requiring a separate switching like co-contraction.

Zusammenfassung: The objective of this study was to compare prosthetic use and amount of walking with prosthesis in bilateral below knee amputees (BK-BK), bilateral above knee and below knee amputees (AK-BK), and bilateral above knee amputees (AK-AK).

Zusammenfassung: Range of acceleration has been used to assess stability. To test this measure with transtibial prosthesis users, accelerometer data were collected across various walking conditions. Range of acceleration was not appropriate for prosthetic stability analysis.

Zusammenfassung: We aimed to determine if a shock absorbing pylon (SAP) influenced the loading rate, knee angles and knee power absorption during the loading phase in running compared to a rigid pylon. The SAP reduced the loading rate, but did not influence the knee flexion angle or the knee joint absorption power.

Zusammenfassung: Prosthetic feet and knees are designed for a specific functionality. Three characteristic foot-knee combinations are analyzed in relation to their different functionalities. The influence of the foot to the knee in TT prostheses is demonstrated.

Zusammenfassung: TF amputees with short residual limbs (<30%) demonstrate reduced motor function performance which leads to a modified gait pattern. This can be clearly characterised by biomechanical parameters. With short residual limbs, metabolic energy consumption increases as the residual limb length decreases.

Zusammenfassung: A new wrist prosthesis providing active flexion/extension and pronation/supination for transradial amputees is under development. Preliminary trials have elicited positive user feedback and suggest reduced compensatory motions in some activities.

Zusammenfassung: The rehabilitation of a hemicorporectomy amputee needs multidisciplinary team work.

Zusammenfassung: This work relates to the development and pilot clinical testing of a microprocessor-based swing-phase control mechanism with electrical power generation. This work demonstrates that effective swing-phase control can be achieved along with charging of on-board batteries.

Zusammenfassung: A non-amputee who had suffered Cerebral Palsy was fitted with a myoelectric prosthesis to sustain his current functionality. He experienced overuse of his contralateral side and presumed that a prosthesis could potentially provide some functionality that would in turn offload his ailing sound side.

Zusammenfassung: A selection of EMG signal features has been evaluated for simultaneous proportional control of upper-limb prostheses. They were tested individually and in combination, as an input to a linear mapping function. The performance has been evaluated in a pilot experiment for ten healthy subjects.

Zusammenfassung: Using outcome measures from patient satisfaction questionaires and the long term activity monitor (LAM) we measured the actual differences in usage and satisfaction for 10 amputees trialing the Echelon (with a Hydraulic ankle) and a similar foot with fixed ankle.

Zusammenfassung: The objective of this presentation is to review the literature on sub-atmospheric suspension systems for prosthetic sockets with the focus on quantitative evidence for lower limb applications.

Zusammenfassung: Pistoning tests were performed in a clinical environment, on a new type of silicone liner trying to identify fit and suspension of the prosthesis using the new liner.

Zusammenfassung: Shortness of stump length creates various problems in fitting prosthesis for all lower limb amputation. In this study, that is done case study, usage of special kind of LSO with a femoral joint in fitting prosthesis with very short stump is studied.

Zusammenfassung: During several years various prostheses are fitted for me all of them had similar condition in imbalanced. The imbalance was remarkable which hardened walking often when I was standing my body got shaking intensively .Adding some pads and make some changes in foot by myself made me comfortable.

Zusammenfassung: The Prostheses Foundation has been able to effectively make ischial containment sockets using a sand casting technique that utilizes a plastic bag and a bag of the foam pellets. In the last year, 100 transfemoral prostheses have been produced using this simple system.

Zusammenfassung: The DYNALOP project aims to develop a scientifically based method for the dynamic alignment of below-knee prostheses, by utilizing the pressure distribution and CoP underneath prosthetic feet during gait. This study suggest that this development may be independent from the type of prosthetic feet.

Zusammenfassung: Silicone Suction Sockets were first introduced in the mid-1980s. These liners are made of a relatively thin silicone and their primary purpose is suspension of the prosthesis.

Zusammenfassung: In this case study, we will attempt to highlight principle keys in application of implanted finger prosthesis that cause success or failure of treatment

Zusammenfassung: Upper extremity prosth become advanced in their functions, novel attachment systems be created allow the devices to fully demonstrate their abilities. The case will investigate a unique means of bridging the man machine interface, based on stringent parameters unable to be met by traditional techno.

Zusammenfassung: With the goal of novel prosth systems being the restoration of function, attention must be paid to closing natural sensory loop. Haptics, a currently proposed solution to this shortfall, has undergone limited efficacy testing. Ongoing scientific investigation meant to address this gap.

Zusammenfassung: The aim of this study is to evaluate the accuracy, repeatability and reliability of the Tracer CAD prosthetic CAD system and to compare results with those obtained using traditional methods of shape capture (plaster of Paris).

Zusammenfassung: Effective rocker shapes for walking had a radius of about 1/3 of leg length (LL), while shapes for fore-aft swaying had a radius over 2 times LL. A simple model suggests that the stiffness of a biomimetic prosthetic ankle would need to be 3-4 times higher for fore-aft swaying than for walking.

Zusammenfassung: The different prosthesis alignment influenced the feet positions during natural standing. The changes in prosthetic ankle (increased plantar or dorsal flexion) conduce to enlargement of the base of support. Shorter prosthesis length results in lateral displacement of the prosthetic foot tip.

Zusammenfassung: Programs designed by non-governmental organizations (NGOs) to meet the short term needs for prosthetic care may provide the devices needed but not the resources needed on a long-term basis.Training,which includes a long term commitment by the NGO to the underserved area will increase success.

Zusammenfassung: Aim of the study was to compare three different types of myoelectric signal training. Three groups of able-bodied participants trained control of a myoelectric hand. No differences were found for the three training groups. However, individual differences in learning capacities were noticed.

Zusammenfassung: This paper will discuss the results of testing a number of Fused Deposition Modelling materials. The mechanical properties of the materials will be compared with the fibre reinforced resin and copolymer polypropylene materials which are routinely used in the production of prosthetic sockets.

Zusammenfassung: o A new wrist pro/supination component can produce higher torque and speed, within the same size and weight as earlier components o Electric arm prosthesis wearers who desire more function desire higher performance in components, i.e., if higher speed and torque is available, active prosthesis users

Zusammenfassung: The need to accurately assess outcomes for prosthetic and orthotics is more urgent in low income nations. Limited follow-up reduces opportunity to adjust protocols during return visits. Preliminary field testing of a suite of lower limb outcomes for low income nations shows positive results.

Zusammenfassung: The aim of the current study was to check whether an early adjustment of the Air-Limb prosthesis, will shorten the healing time of the stump and the process of rehabilitation.

Zusammenfassung: Shortness of stump in BK amputations complicates fitting appropriate prosthesis .they have some problems .This study is done clinically choosing of patients randomly .Based on clinical observation and remarks of amputees intra sliding deplacement of socket can decrease knee valgus and pain .

Zusammenfassung: In this study to determine pneumatic, hydraulic and electronic (advanced) joints in functional improvement of knee disarticulation and above knee amputees in comparison whit simple mechanical joints , opinion assessment was done 124 over knee and above knee amputees.

Zusammenfassung: Symmetry in External Work (SEW) is a novel measure that can be used to differentiate gait kinetics between prosthetic feet. This study describes the application of the SEW measure to compare four prosthetic feet as well as the advantages and disadvantages of this technique.

Zusammenfassung: In recent years the staff of the NCPO have adopted a problem based learning(PBL) approach to upper limb teaching. This teaching model has proved to be very successful as it encourages deeper learning and equips the students with the skills required to assess and treat upper limb amputees.

Zusammenfassung: AA is a 52 year old ghanese divorced male who lived alone prior to developing leukemia in August 2008. He underwent chemotherapy during 2008 and then underwent bilateral trans-tibial and bilateral trans-radial amputations. He will live alone in government housing & with attendant care.

Zusammenfassung: The fall in price of components produced in low-wage countries prompted a reassessment of the market to explore viable alternatives to what is used and promoted at present. The findings confirm that field testing of low-cost, industrially produced components is timely and justified.

Zusammenfassung: Three 2-site EMG prosthesis control strategies were developed with the intent to allow the user to modulate both position and stiffness. Pilot study data shows that users preferred a cocontration state stiffness controller with a standard position controller.