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Limb prosthesis

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https://www.readbyqxmd.com/read/27912929/survival-failure-modes-and-function-of-combined-distal-femur-and-proximal-tibia-reconstruction-following-tumor-resection
#1
F Sevelda, W Waldstein, J Panotopoulos, C Stihsen, A Kaider, P T Funovics, R Windhager
BACKGROUND: Tumor spread to the knee joint or skip metastasis to the adjacent bones of the knee require reconstruction with combined distal femur and proximal tibia replacements. The literature on implant survival and failure modes with this type of reconstruction is sparse. The goals of this study were to determine the implant survival, the different failure modes and the functional outcome of this megaendoprosthetic reconstruction. PATIENTS AND METHODS: Thirty-nine patients with combined distal femur and proximal tibia reconstruction were retrospectively reviewed...
November 23, 2016: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27912753/radiographic-evaluation-of-early-periprosthetic-acetabular-bone-contrast-and-prosthetic-head-acetabular-coverage-after-uncemented-and-cemented-total-hip-prosthesis-in-dogs
#2
Ayman A Mostafa, Karin Lucas, Ingo Nolte, Patrick Wefstaedt
BACKGROUND: Coxofemoral osteoarthritis is a chronic, disabling condition affecting people and dogs, with THA providing an excellent return to function in severely affected joints. The principal role of THA is to restore an adequate range of motion to the hip joint while transferring load from the acetabulum in order to improve the survival of the implant and enhance the limb function in the short and long terms. The objectives of the study reported here were, therefore, to radiographically evaluate periprosthetic acetabular bone GV and to assess prosthetic head acetabular coverage after 4 months of uncemented and cemented THA in dogs...
December 3, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27909134/what-is-the-morbidity-of-a-non-invasive-growing-prosthesis
#3
M M Gilg, C L Gaston, M C Parry, L Jeys, A Abudu, R M Tillman, S R Carter, R J Grimer
AIMS: Extendible endoprostheses have been available for more than 30 years and have become more sophisticated with time. The latest generation is 'non-invasive' and can be lengthened with an external magnetic force. Early results have shown a worryingly high rate of complications such as infection. This study investigates the incidence of complications and the need for further surgery in a cohort of patients with a non-invasive growing endoprosthesis. PATIENTS AND METHODS: Between 2003 and June 2014, 50 children (51 prostheses) had a non-invasive growing prosthesis implanted for a primary bone sarcoma...
December 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27898162/residual-limb-skin-temperature-and-thermal-comfort-in-people-with-amputation-during-activity-in-a-cold-environment
#4
Ava D Segal, Glenn K Klute
Thermal comfort remains a common problem for people with lower-limb amputation. Both donning a prosthesis and engaging in activity at room temperature can increase residual limb skin temperature; however, the effects of activity on skin temperature and comfort in more extreme environments remain unknown. We examined residual limb skin temperatures and perceived thermal comfort (PTC; 11-point Likert scale) of participants with unilateral transtibial amputation (n = 8) who were snowshoeing in a cold environment...
2016: Journal of Rehabilitation Research and Development
https://www.readbyqxmd.com/read/27891243/a-comprehensive-musculoskeletal-and-peripheral-nervous-system-assessment-of-war-related-bilateral-upper-extremity-amputees
#5
Mostafa Allami, Batool Mousavi, Mehdi Masoumi, Ehsan Modirian, Hadi Shojaei, Fatemeh Mirsalimi, Maryam Hosseini, Pirouz Pirouzi
BACKGROUND: Upper limb amputations are one of the unpleasant war injuries that armed forces are exposed to frequently. The present study aimed to assess the musculoskeletal and peripheral nervous systems in Iraq-Iran war veterans with bilateral upper extremity amputation. METHODS: The study consisted of taking a history and clinical examinations including demographic data, presence and location of pain, level of amputation, passive and active ranges of movement of the joints across the upper and lower extremities and spine, manual palpation, neurological examination, blood circulation pulses and issues related to a prosthetic limb...
2016: Military Medical Research
https://www.readbyqxmd.com/read/27888261/fluctuating-residual-limb-volume-accommodated-with-an-adjustable-modular-socket-design-a-novel-case-report
#6
Kay Mitton, Jai Kulkarni, Kenneth William Dunn, Anthony Hoang Ung
BACKGROUND: This novel case report describes the problems of prescribing a prosthetic socket in a left transfemoral amputee secondary to chronic patellofemoral instability compounded by complex regional pain syndrome. CASE DESCRIPTION AND METHODS: Following the amputation, complex regional pain syndrome symptoms recurred in the residual limb, presenting mainly with oedema. Due to extreme daily volume fluctuations of the residual limb, a conventional, laminated thermoplastic socket fitting was not feasible...
November 24, 2016: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/27882029/effects-of-comprehensive-rehabilitation-training-in-combination-with-multi-mode-analgesia-on-body-function-recovery-after-tumor-type-knee-replacement
#7
Junjuan Zhang, Yahan Wang, Guangyu Yang, Jing Liu, Junjie Wang
OBJECTIVE: To discuss the significance of comprehensive rehabilitation training combined with multimodal analgesia (MMA) for the early knee function recovery of patients with knee bone tumor who underwent prosthesis replacement operation. METHODS: Sixty patients with knee bone tumor who underwent prosthesis replacement operation were selected and randomly divided into two groups according to rehabilitation training and postoperative analgesic methods, namely, observation group and control group, 30 cases in each group...
September 2016: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/27866037/preoperative-preparation-of-a-patient-with-grade-ii-leg-lymphedema-for-his-third-hip-replacement-surgery
#8
Maria de Fátima Guerreiro Godoy, Livia Maria Pereira de Godoy, Renata Lopes Pinto, Jose Maria Pereira de Godoy
INTRODUCTION: The treatment of lymphedema remains a challenge to modern medicine, due to the characteristics of the disease. CASE PRESENTATION: Report on the case of a 75-year-old patient with lower limb lymphedema for treatment prior to surgery. At age 45, he made the first hip replacement surgery in the left leg. One year later he performed the same surgery on the right leg. At that time his legs had slight ankle edema mainly of the left leg and the entire left leg was affected by lymphedema...
September 28, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27833290/free-gracilis-flap-for-chest-wall-reconstruction-in-male-patient-with-poland-syndrome-after-implant-failure
#9
Mario Cherubino, Francesca Maggiulli, Igor Pellegatta, Luigi Valdatta
Poland's syndrome (PS) is a congenital monolateral deformity that may involve breast, chest wall, and upper limb with different degrees of clinical expressions. In some cases, the problem is mainly cosmetic, and the reconstruction should be performed to achieve minimal scarring and donor site morbidity. The authors describe a case report of a male patient with PS who developed a severe capsular contraction after 25 years implant reconstruction, who was treated after explantation using free gracilis flap (FGF)...
May 2016: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/27830274/silver-coated-endoprosthetic-replacement-of-the-proximal-humerus-in-case-of-tumour-is-there-an-increased-risk-of-periprosthetic-infection-by-using-a-trevira-tube
#10
Jan Schmolders, Sebastian Koob, Paul Schepers, Michael Kehrer, Sönke Percy Frey, Dieter Christian Wirtz, Peter Heinrich Pennekamp, Andreas Christian Strauss
BACKGROUND AND OBJECTIVES: The aim of our study was to evaluate if there is an increased risk of periprosthetic infection (PJI) in patients following replacement of the proximal humerus by using a modular tumour prosthesis in combination with a trevira tube. METHODS: Thirty patients were treated by using a modular tumour endoprosthesis (MUTARS®) following intra-articular resection of the proximal humerus. Fifteen patients received treatment by using a trevira tube...
November 9, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27826906/amputation-and-rotationplasty-in-children-with-limb-deficiencies-current-concepts
#11
REVIEW
Ralph Sakkers, Iris van Wijk
PURPOSE: Amputations and fitting surgery have a long history in children with limb deficiencies. With the current developments in limb reconstruction and new techniques in prosthetics, the indications for amputation and fitting surgery might have shifted, but still have a very important role in creating high functional performance, optimal participation and quality of life. The purpose of this current concepts article is to give an overview of the indications, dilemmas and technical considerations in the decision-making for amputation and fitting surgery...
November 8, 2016: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/27818979/functional-assessment-of-endoprosthesis-in-the-treatment-of-bone-tumors
#12
Denis Kiyoshi Fukumothi, Hiran Pupo, Luciano Augusto Reganin, Silvia Raquel Fricke Matte, Bruno Spagnuolo de Lima, Carlos Augusto de Mattos
OBJECTIVES: Evaluate the functional grade of these patients and to identify the types of complications found that influenced the average life span of endoprostheses the functions of the operated limb. METHODS: We analyzed 14 post-operative cases of endoprosthesis, patients with malignant bone tumors and aggressive benign bone tumors submitted to surgery between 2004 and 2014. The evaluation system used was proposed by Enneking, recommended by the Musculoskeletal Tumor Society (MSTS), in addition to the radiologic evaluation...
September 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/27814972/lumped-parameter-electromyogram-driven-musculoskeletal-hand-model-a-potential-platform-for-real-time-prosthesis-control
#13
Dustin L Crouch, He Huang
Simple, lumped-parameter musculoskeletal models may be more adaptable and practical for clinical real-time control applications, such as prosthesis control. In this study, we determined whether a lumped-parameter, EMG-driven musculoskeletal model with four muscles could predict wrist and metacarpophalangeal (MCP) joint flexion/extension. Forearm EMG signals and joint kinematics were collected simultaneously from 5 able-bodied (AB) subjects. For one subject with unilateral transradial amputation (TRA), joint kinematics were collected from the sound arm during bilateral mirrored motion...
October 27, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27813030/the-effect-of-mirror-therapy-on-the-management-of-phantom-limb-pain
#14
Meltem Yıldırım, Nevin Kanan
OBJECTIVES: In the last two decades, mirror therapy has become a frequently used method of managing phantom limb pain (PLP). However, the role of nurses in mirror therapy has not yet been well defined. This study examined the effect of mirror therapy on the management of PLP, and discusses the importance of mirror therapy in the nursing care of amputee patients. METHODS: This quasi-experimental study was conducted in the pain management department of a university hospital and a prosthesis clinic in İstanbul, Turkey, with 15 amputee patients who had PLP...
July 2016: Aǧrı: Ağrı (Algoloji) Derneği'nin Yayın Organıdır, the Journal of the Turkish Society of Algology
https://www.readbyqxmd.com/read/27808030/-a-free-musculocutaneous-flap-and-an-intramedullary-nail-made-the-use-of-a-prosthesis-possible-in-a-high-traumatic-femoral-amputation
#15
Jakob Felbo Paulsen, Finn Edgar Warburg, Knud Stenild Christensen, Rikke Holmgaard
The length of the stump and the quality of the soft tissue coverage are important for prosthesis fitting and mobility. In a high traumatic femoral amputation soft tissue reconstruction with a free musculocutaneous latissimus dorsi (LD) flap was performed to preserve bone length and provide proper tissue coverage. The extremely short stump was later on lengthened using a motorized intramedullary nail (Fitbone), and the achieved bone-lengthening was 14 cm. With the combined modalities of an LD-flap and Fitbone lengthening of the stump, the patient now has a useful limb function...
October 24, 2016: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/27807418/evaluating-emg-feature-and-classifier-selection-for-application-to-partial-hand-prosthesis-control
#16
Adenike A Adewuyi, Levi J Hargrove, Todd A Kuiken
Pattern recognition-based myoelectric control of upper-limb prostheses has the potential to restore control of multiple degrees of freedom. Though this control method has been extensively studied in individuals with higher-level amputations, few studies have investigated its effectiveness for individuals with partial-hand amputations. Most partial-hand amputees retain a functional wrist and the ability of pattern recognition-based methods to correctly classify hand motions from different wrist positions is not well studied...
2016: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/27799908/assessment-of-myoelectric-controller-performance-and-kinematic-behavior-of-a-novel-soft-synergy-inspired-robotic-hand-for-prosthetic-applications
#17
Simone Fani, Matteo Bianchi, Sonal Jain, José Simões Pimenta Neto, Scott Boege, Giorgio Grioli, Antonio Bicchi, Marco Santello
Myoelectric artificial limbs can significantly advance the state of the art in prosthetics, since they can be used to control mechatronic devices through muscular activity in a way that mimics how the subjects used to activate their muscles before limb loss. However, surveys indicate that dissatisfaction with the functionality of terminal devices underlies the widespread abandonment of prostheses. We believe that one key factor to improve acceptability of prosthetic devices is to attain human likeness of prosthesis movements, a goal which is being pursued by research on social and human-robot interactions...
2016: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/27796406/-prognostic-assessment-in-private-healthcare-insurance-part%C3%A2-2-risk-supplement-for-accidental-endoprostheses
#18
H-T Klemm, A Naumann, G Hofmann, G Spahn
After examining the causes of an accident the medical expert working in the area of private health care insurance under the general accident insurance (AUB) sample conditions must ascertain incapacity within a period of time that has been contractually agreed between the parties involved. In addition, this must also state their position on the question as to whether there may exist any circumstances up to the latest possible point in time in insurance terms that would comprise an adequate prognosis of a future change in the long-term condition...
October 28, 2016: Der Unfallchirurg
https://www.readbyqxmd.com/read/27783841/reconstruction-using-expandable-endoprostheses-for-skeletally-immature-patients-with-sarcoma
#19
Alexander P Decilveo, Bartlomiej W Szczech, Jacob Topfer, James C Wittig
Expandable endoprostheses have become an acceptable modality to address the issue of limb-length inequality in limb-sparing procedures for skeletally immature patients afflicted with lower extremity bone sarcomas. This study retrospectively analyzed postoperative outcomes and complications for 7 patients (8 limbs) who underwent minimally invasive or noninvasive reconstruction during a 12-year period. Musculoskeletal Tumor Society (MSTS) scores and complication rates were reported. Mean functional outcome (MSTS scores) at final follow-up was 93...
October 25, 2016: Orthopedics
https://www.readbyqxmd.com/read/27777640/neuromimetic-event-based-detection-for-closed-loop-tactile-feedback-control-of-upper-limb-prostheses
#20
Luke Osborn, Rahul Kaliki, Alcimar Soares, Nitish Thakor
Upper limb amputees lack the valuable tactile sensing that helps provide context about the surrounding environment. Here we utilize tactile information to provide active touch feedback to a prosthetic hand. First, we developed fingertip tactile sensors for producing biomimetic spiking responses for monitoring contact, release, and slip of an object grasped by a prosthetic hand. We convert the sensor output into pulses, mimicking the rapid and slowly adapting spiking responses of receptor afferents found in the human body...
April 2016: IEEE Transactions on Haptics
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