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1.
Medicina (Kaunas) ; 60(6)2024 May 30.
Article in English | MEDLINE | ID: mdl-38929528

ABSTRACT

Lower limb amputation is a common surgical procedure performed worldwide. Many individuals require amputation due to various circumstances, with amputations occurring above or below the knee. Surgeons rely on published research to determine the most appropriate technique based on intraoperative and postoperative outcomes. The Gritti-Stokes amputation (GSA) procedure, introduced in 1857, has shown positive results in terms of primary wound healing, reduced mortality rates during and after surgery, and accelerated healing and mobility. However, due to the need for highly trained surgeons and limitations in functional and cosmetic prosthesis fitting, concerns have been raised regarding its utility. Additionally, the procedure is underutilized in cases where it could potentially yield better results. This article provides a comprehensive review of the documented benefits of GSA, suitable candidate selection, limitations, various modifications, and a comparison with traditional approaches to lower limb amputation. The review is focused on evidence published in the last 100 years.


Subject(s)
Amputation, Surgical , Humans , Amputation, Surgical/methods , Lower Extremity/surgery , Wound Healing
2.
BMJ Mil Health ; 167(6): 393-397, 2021 Dec.
Article in English | MEDLINE | ID: mdl-32086267

ABSTRACT

INTRODUCTION: The objective was to report on the experience of the French Army Health Service in the management of blast injury of the hands related to warfare explosive devices. METHODS: A retrospective study was conducted in the Percy Military Hospital (role 4 medical treatment facility) among French soldiers who presented with a combat-related blast injury of the hand between 2002 and 2018. The functional result was assessed by the disabilities of the arm, shoulder and hand (DASH) and the Orthotics and Prosthetics User Survey (OPUS, upper extremity functional status) scores. Proximal amputations (PAs) and distal amputations (DAs) were distinguished for the analysis. RESULTS: Fifteen patients with a mean age of 31±8 years were included. They totalised 20 blasted hands. There were 16 traumatic amputations: 8 in each of the PA and DA groups. Twelve patients had additional injuries, four of which were polytraumatic. Skin closure time and flap use were higher in the DA group. Only one thumb reconstruction was performed. At a mean follow-up of 6.5±4 years, the number of amputees wearing a prosthesis was higher in the PA group. The mean DASH and OPUS scores were 35.5%±24.0% and 64.0%±19.0%, respectively, with no difference between the two groups. CONCLUSION: The severity of hand blasts related to warfare explosive devices requires the systematic application of damage control surgery. PAs are frequent and secondary reconstruction options are limited. The functional result is poor and similar between proximal and distal amputees.


Subject(s)
Blast Injuries , Explosive Agents , Military Health Services , Adult , Blast Injuries/epidemiology , Humans , Retrospective Studies , Warfare , Young Adult
3.
Sensors (Basel) ; 19(24)2019 Dec 13.
Article in English | MEDLINE | ID: mdl-31847220

ABSTRACT

The pressure map at the interface of a prosthetic socket and a residual limb contains information that can be used in various prosthetic applications including prosthetic control and prosthetic fitting. The interface pressure is often obtained using force sensitive resistors (FSRs). However, as reported by multiple studies, accuracies of the FSR-based pressure sensing systems decrease when sensors are bent to be positioned on a limb. This study proposes the use of regression-based methods for sensor calibration to address this problem. A sensor matrix was placed in a pressure chamber as the pressure was increased and decreased in a cyclic manner. Sensors' responses were assessed when the matrix was placed on a flat surface or on one of five curved surfaces with various curvatures. Three regression algorithms, namely linear regression (LR), general regression neural network (GRNN), and random forest (RF), were assessed. GRNN was selected due to its performance. Various error compensation methods using GRNN were investigated and compared to improve instability of sensors' responses. All methods showed improvements in results compared to the baseline. Developing a different model for each of the curvatures yielded the best results. This study proved the feasibility of using regression-based error compensation methods to improve the accuracy of mapping sensor readings to pressure values. This can improve the overall accuracy of FSR-based sensory systems used in prosthetic applications.


Subject(s)
Linear Models , Prosthesis Design/methods , Artificial Limbs , Humans , Neural Networks, Computer
4.
Article in Japanese | WPRIM (Western Pacific) | ID: wpr-379470

ABSTRACT

<p>For lower limb amputees, good prosthetic fittings are important for wearing prostheses while ensuring gait stability, without skin breakdown. Poor prosthetic fittings tend to occur in the early stage after amputation because of significant changes in residual limb volume. We measured the extent of change in residual limb volume in three below-the-knee amputees by using computed tomography. The measurements were performed before and after inpatient rehabilitation for the first prosthesis. The measurement showed a remarkable change in residual limb volume in a highly active amputee without complications. In contrast, the change in residual limb volume was small in two less active below-the-knee amputees with serious complications, such as heart and renal failures. Generally, to maintain good prosthetic fittings, the first prostheses should be made during inpatient rehabilitation to facilitate maturation of the residual limbs. For the less active below-knee amputees, the prostheses could be made in the outpatient settings because the volume fluctuations of their residual limbs are small and the functional requirements for their daily living are modest.</p>

5.
Orthop Traumatol Surg Res ; 102(1 Suppl): S161-75, 2016 Feb.
Article in English | MEDLINE | ID: mdl-26797004

ABSTRACT

Amputation of a limb is always perceived as a catastrophe. The principles underlying creation of a stump adapted to modern prosthetic fittings must be fully understood and the patient managed by a multidisciplinary team. In paediatric patients, preserving residual limb length is a crucial point that should be assessed according to the expected growth potential. Advances in prosthetic fittings have led to changes in the overall concept of socket design, which seeks to achieve three objectives: to maximise the weight-bearing surface area, to eliminate friction of the skin on the socket, and to eliminate lever-arm effects. The introduction on the market of new materials has contributed substantially to advances in prosthetic fittings. These advances require the use of new criteria for stump quality and optimisation, which exert a considerable influence on prosthesis function. Prosthetic fitting and specific management of psychological and social problems are provided during an inpatient stay in a physical medicine department, by a team of physicians, other healthcare professionals, social workers, and educators. Three-dimensional imaging and gait analysis provide valuable information.


Subject(s)
Amputation Stumps , Amputation, Surgical/methods , Artificial Limbs , Gait , Lower Extremity/surgery , Prosthesis Fitting/methods , Biomechanical Phenomena , Child , Humans , Imaging, Three-Dimensional , Prosthesis Design , Weight-Bearing
6.
Gait Posture ; 41(2): 683-7, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25684145

ABSTRACT

The purpose of this study was to compare gait deviations between Kondylen Bettung Münster (KBM) and vacuum prosthetic fitting using the Gait Profile Score (GPS), the Movement Analysis Profile (MAP) and temporal-spatial parameters. Seventeen transtibial amputees that received their prosthesis from the Brazilian governmental health system participated in this study. Twelve of them used KBM prosthetic fitting on their prosthesis and five used vacuum prosthetic fitting. Kinematic and temporal-spatial parameters data were captured by a six-camera Motion Analysis system (Santa Rosa, CA). The results showed that the vacuum group walked faster than the KBM group but the differences in temporal-spatial parameters between them were not significant. The GPS for the intact limb (IL) and the overall GPS differentiated between the groups of prosthetic fitting. Hip flexion/extension and knee flexion/extension were higher in KBM group than in the vacuum group, although only knee flexion/extension for the intact limb revealed significant difference between the groups. In KBM group, the major deviations were in hip flexion/extension for both limbs, knee flexion/extension for both limbs and ankle dorsi/plantar flexion for the prosthetic limb. The vacuum group showed deviations especially in ankle dorsi/plantar flexion for both limbs, knee flexion/extension for the prosthetic limb and hip rotation for the prosthetic limb. Besides, the vacuum group was more symmetrical than the KBM group. This study concluded that subjects who used vacuum prosthetic fitting presented smaller gait deviations and a more symmetrical gait than those who used KBM prosthetic fitting.


Subject(s)
Amputees/rehabilitation , Ankle Joint/physiopathology , Artificial Limbs , Gait/physiology , Knee Joint/physiopathology , Prosthesis Fitting , Walking/physiology , Adult , Biomechanical Phenomena , Female , Humans , Male , Vacuum
7.
Vet Clin North Am Small Anim Pract ; 45(1): 167-83, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25432685

ABSTRACT

Exoprostheses are devices that are secured to incomplete limbs to enable locomotion. By comparison, orthoses are devices externally applied to support or protect an injured body part. Orthoses also can be used to control, guide, protect, limit motion of, or immobilize an extremity, a joint, or a body segment. Exoprostheses and orthoses are a growing aspect of the physical rehabilitation of companion animals. They require precise design and fabrication. Patients and owners must be trained to use the devices. Exoprostheses and orthoses can have a profound beneficial impact on the mobility and the quality of life of companion animals.


Subject(s)
Artificial Limbs/veterinary , Orthotic Devices/veterinary , Pets , Veterinary Medicine/instrumentation , Animals , Physical Therapy Modalities/veterinary , Veterinary Medicine/methods
8.
J Rehabil Res Dev ; 49(10): 1453-1504, 2012.
Article in English | MEDLINE | ID: mdl-33116349

ABSTRACT

Providing a satisfactory, functional prosthesis following lower-limb amputation is a primary goal of rehabilitation. The objectives of this study were to describe the rate of successful prosthetic fitting over a 12 mo period; describe prosthetic use after amputation; and determine factors associated with greater prosthetic fitting, function, and satisfaction. The study design was a multicenter prospective cohort study of individuals undergoing their first major lower-limb amputation because of vascular disease and/or diabetes. At 4 mo, unsuccessful prosthetic fitting was significantly associated with depression, prior arterial reconstruction, diabetes, and pain in the residual limb. At 12 mo, 92% of all subjects were fit with a prosthetic limb and individuals with transfemoral amputation were significantly less likely to have a prosthesis fit. Age older than 55 yr, diagnosis of a major depressive episode, and history of renal dialysis were associated with fewer hours of prosthetic walking. Subjects who were older, had experienced a major depressive episode, and/or were diagnosed with chronic obstructive pulmonary disease had greater functional restriction. Thus, while most individuals achieve successful prosthetic fitting by 1 yr following a first major nontraumatic lower-limb amputation, a number of medical variables and psychosocial factors are associated with prosthetic fitting, utilization, and function.

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