Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 251
Filtrar
1.
World Neurosurg ; 149: 397-405, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33276176

RESUMO

OBJECTIVE: The study aimed to provide a guideline for continuous rehabilitation nursing for patients with severe finger replantation, and establish a satellite contact point for patients with severe finger replantation after discharge, so as to ensure scientific and effective rehabilitation training after discharge and explore the role of continuous rehabilitation nursing measurement in severe finger rehabilitation and neurovascular preservation. METHODS: A total of 380 patients accepting neurovascular preservation finger replantation in the hand surgery department were divided into an observation group and a control group according to the number of hospitalizations. All patients underwent reconstructive surgery of severed finger. X-ray filming was used to monitor the postoperative nursing effect of neurovascular preservation of severed finger. The discharged patient information questionnaire was filled 3 days before the discharge. Then, a patient information database was established, and rehabilitation training was performed. Finally, sexual rehabilitation nursing follow-up intervention, telephone follow-up, and cross-referring intervention were carried out. Postoperative x-ray images were taken regularly to observe the recovery of reconstructed finger. RESULTS: There was no difference in daily life ability scores and hand function scores between the 2 groups at discharge (P > 0.05). The daily life ability scores and hand function scores of the observation group were better than those of the control group at 1 and 6 months after discharge (P < 0.05), the difference is statistically significant. As the discharge time prolonged, the daily life ability score and hand function score of the 2 groups of patients gradually increased. X-ray images showed that the replanted finger body was well developed, phalanx was in good antithesis, and there was no epiphysis. CONCLUSIONS: Continuous rehabilitation nursing measures should be taken after the replantation of the severed finger after neurovascular preservation, which provides standardized rehabilitation training standards for patients with replantation of severed finger after discharge, improves patient training compliance, promotes hand function recovery as soon as possible, and enables patients to return to society as soon as possible, which is worthy of clinical promotion and application.


Assuntos
Amputação Traumática/cirurgia , Traumatismos dos Dedos/cirurgia , Enfermagem em Reabilitação/métodos , Reimplante/enfermagem , Atividades Cotidianas , Adolescente , Adulto , Amputação Traumática/diagnóstico por imagem , Amputação Traumática/enfermagem , Amputação Traumática/fisiopatologia , Feminino , Traumatismos dos Dedos/diagnóstico por imagem , Traumatismos dos Dedos/enfermagem , Traumatismos dos Dedos/fisiopatologia , Humanos , Masculino , Radiografia , Enfermagem em Reabilitação/organização & administração , Reimplante/reabilitação , Adulto Jovem
2.
Dev Neurobiol ; 80(5-6): 168-177, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32452106

RESUMO

In many species, the negative effects of aversive stimuli are mitigated by social interactions, a phenomenon termed social buffering. In one form of social buffering, social interactions reduce the inhibition of brain cell proliferation during stress. Indirect predator stimuli (e.g., olfactory or visual cues) are known to decrease brain cell proliferation, but little is known about how somatic injury, as might occur from direct predator encounter, affects brain cell proliferation and whether this response is influenced by conspecific interactions. Here, we assessed the social buffering of brain cell proliferation in an electric fish, Apteronotus leptorhynchus, by examining the separate and combined effects of tail injury and social interactions. We mimicked a predator-induced injury by amputating the caudal tail tip, exposed fish to paired interactions that varied in timing, duration and recovery period, and measured brain cell proliferation and the degree of social affiliation. Paired social interaction mitigated the negative effects of tail amputation on cell proliferation in the forebrain but not the midbrain. Social interaction either before or after tail amputation reduced the effect of tail injury and continuous interaction both before and after caused an even greater buffering effect. Social interaction buffered the proliferation response after short-term (1 d) or long-term recovery (7 d) from tail amputation. This is the first report of social buffering of brain cell proliferation in a non-mammalian model. Despite the positive association between social stimuli and brain cell proliferation, we found no evidence that fish affiliate more closely following tail injury.


Assuntos
Amputação Traumática/fisiopatologia , Comportamento Animal/fisiologia , Encéfalo/fisiologia , Proliferação de Células/fisiologia , Gimnotiformes/fisiologia , Comportamento Social , Cauda/lesões , Animais , Encéfalo/citologia , Fatores de Tempo
3.
Mil Med Res ; 7(1): 21, 2020 04 26.
Artigo em Inglês | MEDLINE | ID: mdl-32334640

RESUMO

BACKGROUND: Limb loss has a drastic impact on a patient's life. Severe trauma to the extremities is common in current military conflicts. Among other aspects, "life before limb" damage control surgery hinders immediate replantation within the short post-traumatic timeframe, which is limited in part by the ischemic time for successful replantation. Ex vivo limb perfusion is currently being researched in animal models and shows promising results for its application in human limb replantation and allotransplantation. PRESENTATION OF THE HYPOTHESIS: The current lack of replantation possibilities in military operations with high rates of amputation can be addressed with the development of a portable ex vivo limb perfusion device, as there are several opportunities present with the introduction of this technique on the horizon. We hypothesize that ex vivo limb perfusion will enable overcoming the critical ischemic time, provide surgical opportunities such as preparation of the stump and limb, allow for spare-part surgery, enable rigorous antibiotic treatment of the limb, reduce ischemia-reperfusion injuries, enable a tissue function assessment before replantation, and enable the development of large limb transplant programs. TESTING THE HYPOTHESIS: Data from in vivo studies in porcine models are limited by the relatively short perfusion time of 24 h. In the military setting, notably longer perfusion times need to be realized. Therefore, future animal studies must focus especially on long-term perfusion, since this represents the military setting, considering the time for stabilization of the patient until evacuation to a tertiary treatment center. IMPLICATIONS OF THE HYPOTHESIS: The development and clinical introduction of ex vivo limb perfusion in the military setting could lead to a drastic reduction in the number of limb amputations among service members. Ex vivo limb perfusion enables replantation surgery in Role 4 facilities and changes the clinical setting from a highly urgent, life-threatening situation to a highly methodical, well-prepared starting point for optimal treatment of the wounded service member. With its introduction, the principle of "life before limb" will change to "life before limb before elective replantation/allotransplantation after ex vivo limb perfusion".


Assuntos
Amputação Traumática/fisiopatologia , Extremidades/irrigação sanguínea , Perfusão/métodos , Amputação Traumática/complicações , Animais , Modelos Animais de Doenças , Extremidades/fisiopatologia , Humanos , Medicina Militar/métodos , Medicina Militar/tendências , Perfusão/normas , Perfusão/estatística & dados numéricos , Reimplante/métodos , Reimplante/normas , Suínos
4.
JAMA Netw Open ; 3(2): e1921626, 2020 02 05.
Artigo em Inglês | MEDLINE | ID: mdl-32083690

RESUMO

Importance: Optimal treatment for traumatic finger amputation is unknown to date. Objective: To use statistical learning methods to estimate evidence-based treatment assignment rules to enhance long-term functional and patient-reported outcomes in patients after traumatic amputation of fingers distal to the metacarpophalangeal joint. Design, Setting, and Participants: This decision analytical model used data from a retrospective cohort study of 338 consenting adult patients who underwent revision amputation or replantation at 19 centers in the United States and Asia from August 1, 2016, to April 12, 2018. Of those, data on 185 patients were included in the primary analysis. Exposures: Treatment with revision amputation or replantation. Main Outcomes and Measures: Outcome measures were hand strength, dexterity, hand-related quality of life, and pain. A tree-based statistical learning method was used to derive clinical decision rules for treatment of traumatic finger amputation. Results: Among 185 study participants (mean [SD] age, 45 [16] years; 156 [84%] male), the median number of fingers amputated per patient was 1 (range, 1-5); 115 amputations (62%) were distal to the proximal interphalangeal joint, and 110 (60%) affected the nondominant hand. On the basis of the tree-based statistical learning estimates, to maximize hand dexterity or to minimize patient-reported pain, replantation was found to be the best strategy. To maximize hand strength, revision amputation was the best strategy for patients with a single-finger amputation but replantation was preferred for all other injury patterns. To maximize patient-reported quality of life, revision amputation was the best approach for patients with dominant hand injuries, and replantation was the best strategy for patients with nondominant hand injuries. Conclusions and Relevance: The findings suggest that the approach to treating traumatic finger amputations varies based on the patient's injury characteristics and functional needs.


Assuntos
Amputação Traumática , Regras de Decisão Clínica , Traumatismos dos Dedos , Adulto , Amputação Traumática/classificação , Amputação Traumática/fisiopatologia , Amputação Traumática/cirurgia , Árvores de Decisões , Medicina Baseada em Evidências , Feminino , Traumatismos dos Dedos/classificação , Traumatismos dos Dedos/fisiopatologia , Traumatismos dos Dedos/cirurgia , Dedos/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Estatísticos , Estudos Retrospectivos
5.
J Plast Reconstr Aesthet Surg ; 73(1): 65-71, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31477494

RESUMO

The thenar flap is a well-described technique, but reports about its use in patients with multiple fingertip injuries are limited. This study aims to introduce a surgical technique of using an extended thenar flap for two adjacent fingertip amputations and to evaluate the clinical outcomes and related complications. From October 2013 to October 2016, 12 patients (24 fingers) underwent soft tissue reconstruction of two adjacent fingers with an extended thenar flap. At the last follow-up, the patients were assessed for cold intolerance in the reconstructed fingers; two-point discrimination (2PD); range of motion (ROM); functional outcomes using the quick disabilities of the arm, shoulder, and hand (DASH) score; functional and appearance outcomes using the Michigan Hand Outcome Questionnaire (MHQ); and time taken to return to work. The mean follow-up time was 13.5 (range: 12-16) months. All flaps survived. The mean total active ROM in flexion measured at the last follow-up was 255° (range: 245°-260°). Objective sensibility in the flaps was ascertained as an average static 2PD of 6.9 (range: 3-10) mm. The mean quick DASH score was 3.3 (range: 0-9.1). The mean MHQ score was 93.8 (range: 88-100). All patients returned to work within 6.2 weeks on average. There were no complications. The extended thenar flap technique is a good alternative for simultaneous coverage of small-to-large defects in two adjacent fingertips.


Assuntos
Amputação Traumática/cirurgia , Traumatismos dos Dedos/cirurgia , Dedos/cirurgia , Retalhos Cirúrgicos , Acidentes de Trabalho , Adulto , Assistência ao Convalescente , Amputação Traumática/fisiopatologia , Feminino , Traumatismos dos Dedos/fisiopatologia , Sobrevivência de Enxerto/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Amplitude de Movimento Articular/fisiologia , Sensação , Técnicas de Sutura , Sítio Doador de Transplante/fisiologia , Resultado do Tratamento
6.
J Hand Ther ; 33(3): 426-434, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-30857892

RESUMO

STUDY DESIGN: Case report. INTRODUCTION: This case report details the postsurgical rehabilitation and outcome of a young maintenance man who sustained a complete amputation of his dominant upper limb at the level of the distal forearm. The patient underwent replantation surgery with 2-centimeter bone shortening, followed by early controlled active motion commencing on day 6. PURPOSE OF THE STUDY: To illustrate the use of early motion after replantation. RESULTS: The patient achieved almost full active range of motion of the digits, intrinsic function, 30 seconds on Nine-Hole Peg Test and early return to work without any additional reconstructive procedures. DISCUSSION: Several fairly recently published protocols advocate initiating active range of motion at only 3 or 4 weeks after upper limb replantation. The following therapeutic interventions were considered important contributors to our favorable functional outcome; early controlled active motion, occupation-based therapy in combination with therapeutic exercises and many custom molded orthoses. CONCLUSION: Future research is required to determine if bone shortening, which is an integral part of replantation surgery, reduces tendon repair tension, allowing for early active motion and thereby contributing to a favorable outcome.


Assuntos
Amputação Traumática/reabilitação , Amputação Traumática/cirurgia , Traumatismos da Mão/reabilitação , Traumatismos da Mão/cirurgia , Reimplante/reabilitação , Amputação Traumática/fisiopatologia , Traumatismos da Mão/fisiopatologia , Humanos , Masculino , Amplitude de Movimento Articular , Recuperação de Função Fisiológica , Resultado do Tratamento , Adulto Jovem
7.
Sultan Qaboos Univ Med J ; 19(3): e248-e252, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31728224

RESUMO

Amputation of multiple fingers of both hands is a rare and serious injury. We report a case of a 41-year-old male patient who presented to Khoula Hospital, Muscat, Oman, in 2015 with the amputation of nine fingers due to a workplace injury. With two teams working in tandem, all the amputated fingers were re-attached. A total of seven fingers survived and the patient regained reasonable functionality of his hands. To the best of the authors' knowledge, this is the first case of several finger amputations in Oman.


Assuntos
Amputação Traumática/cirurgia , Traumatismos dos Dedos/cirurgia , Dedos/inervação , Traumatismos Ocupacionais/cirurgia , Recuperação de Função Fisiológica/fisiologia , Reimplante , Adulto , Amputação Traumática/fisiopatologia , Traumatismos dos Dedos/fisiopatologia , Traumatismos dos Dedos/reabilitação , Dedos/fisiologia , Humanos , Masculino , Microcirurgia , Traumatismos Ocupacionais/fisiopatologia , Omã , Procedimentos de Cirurgia Plástica , Reimplante/métodos , Resultado do Tratamento
8.
BMJ Case Rep ; 12(7)2019 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-31352383

RESUMO

Massive transfusion therapy in severe paediatric trauma is a challenge. When this occurs in a rural setting, the potential delays in accessing medical services can lead to worse coagulopathy on presentation. We report successful treatment of a child post-traumatic lower limb amputation where treatment was only initiated 3 hours postinjury due to difficulties in access/retrieval. Rotational thromboelastometry (ROTEM)-guided, goal-directed haemostatic therapy perioperatively utilising a blood product ratio of 2:2:1 units of red blood cell:free frozen plasma:platelet reverted his coagulopathy. This report aims to raise awareness of the utility of ROTEM in paediatric trauma.


Assuntos
Amputação Traumática/terapia , Transtornos da Coagulação Sanguínea/terapia , Transfusão de Sangue , Extremidade Inferior/lesões , Choque Hemorrágico/diagnóstico , Tromboelastografia , Amputação Traumática/fisiopatologia , Amputação Traumática/reabilitação , Transtornos da Coagulação Sanguínea/fisiopatologia , Pré-Escolar , Cuidados Críticos , Tratamento de Emergência/instrumentação , Hemostasia , Humanos , Extremidade Inferior/fisiopatologia , Masculino , População Rural , Choque Hemorrágico/fisiopatologia , Choque Hemorrágico/terapia , Resultado do Tratamento
9.
JAMA Surg ; 154(7): 637-646, 2019 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-30994871

RESUMO

Importance: Optimal treatment for traumatic digit amputation is unknown. Objective: To compare long-term patient-reported and functional outcomes between patients treated with revision amputation or replantation for digit amputations. Design, Setting, and Participants: Retrospective cohort study at 19 centers in the United States and Asia. Participants were 338 individuals 18 years or older with traumatic digit amputations with at least 1 year of follow-up after treatment. Participants were enrolled from August 1, 2016, to April 12, 2018. Exposures: Revision amputation or replantation of traumatic digit amputations. Main Outcomes and Measures: The primary outcome was the Michigan Hand Outcomes Questionnaire (MHQ) score. Secondary outcomes were the 36-Item Short Form Health Survey (SF-36), Disabilities of the Arm, Shoulder, and Hand (DASH), and Patient-Reported Outcomes Measurement Information System (PROMIS) upper-extremity module scores and functional outcomes. Results: Among 338 patients who met all inclusion criteria, the mean (SD) age was 48.3 (16.4) years, and 85.0% were male. Adjusted aggregate comparison of patient-reported outcomes (PROs) between patients with revision amputation and replantation revealed significantly better outcomes in the replantation cohort measured by the MHQ (5.93; 95% CI, 1.03-10.82; P = .02), DASH (-4.29; 95% CI, -8.45 to -0.12; P = .04), and PROMIS (3.44; 95% CI, 0.60 to 6.28; P = .02) scores. In subgroup analyses, DASH scores were significantly lower (6 vs 9, P = .05), indicating less disability and pain, and PROMIS scores higher (78 vs 75, P = .04) after replantation. Patients with 3 or more digits amputated (including thumb) had significantly better PROs after replantation than those managed with revision amputation (22 vs 42, P = .03 for DASH and 61 vs 36, P = .01 for PROMIS). Patients who underwent replantation after 3 or more digits amputated (excluding thumb) had higher MHQ scores, which did not reach statistical significance (69 vs 65, P = .06). Revision amputation in the subgroup with single-finger amputation distal to the proximal interphalangeal joint resulted in better 2-point discrimination (6 vs 8 mm, P = .05). Compared with revision amputation, replantation resulted in better 9-hole peg test times in the subgroup with 3 or more digits amputated (including thumb) (46 vs 81 seconds, P = .001), better Semmes-Weinstein monofilament test in the subgroup with 3 or more digits amputated (excluding thumb) (3 vs 21 g, P = .008), and better 3-point pinch test in the subgroup with 2 digits amputated (excluding thumb) (6.7 vs 5.6 kg, P = .03). Conclusions and Relevance: When technically feasible, replantation is recommended in 3 or more digits amputated and in single-finger amputation (excluding thumb) distal to the proximal interphalangeal joint because it achieved better PROs, with long-term functional benefit. Thumb replantation is still recommended for its integral role in opposition.


Assuntos
Amputação Cirúrgica/reabilitação , Amputação Traumática/cirurgia , Avaliação da Deficiência , Traumatismos dos Dedos/cirurgia , Medidas de Resultados Relatados pelo Paciente , Recuperação de Função Fisiológica , Reimplante/reabilitação , Amputação Traumática/fisiopatologia , Amputação Traumática/reabilitação , Feminino , Traumatismos dos Dedos/fisiopatologia , Traumatismos dos Dedos/reabilitação , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Reoperação , Estudos Retrospectivos , Resultado do Tratamento
10.
J Orthop Surg (Hong Kong) ; 27(2): 2309499019836289, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30894056

RESUMO

When the index finger is injured or severed with a traumatic thumb amputation, transfer of the injured index finger can restore the function of the thumb. The purpose of this study was to evaluate the result of the transfer of an injured index finger for the traumatic loss of the thumb. A patient had a traumatic amputation at the first metacarpal level with the bone defect of the second metacarpal and proximal part of index finger. She was treated with a pedicled transfer of the injured index finger to the ipsilateral thumb. Postoperative evaluations included thumb range of motion, opposition and pinch function, grasp and pinch strength, sensation, and a patient-rated appearance of the thumb and hand. In result, the blood supply of the transferred traumatic index fingers was normal, and the transferred index fingers survived without complications. The range of motion of the first metacarpophalangeal joint and interphalangeal joint was almost the same as that of a normal thumb. The opposition and pinch function of the thumb was also normal. The patient is able to complete activities of daily living with the new thumb. Nevertheless, the sensation has not yet been completely restored. In conclusion, it is feasible to treat traumatic thumb amputation with the transfer of injured index finger.


Assuntos
Amputação Traumática/cirurgia , Traumatismos dos Dedos/cirurgia , Ossos Metacarpais/cirurgia , Procedimentos Ortopédicos/métodos , Procedimentos de Cirurgia Plástica/métodos , Amplitude de Movimento Articular/fisiologia , Polegar/cirurgia , Atividades Cotidianas , Amputação Traumática/diagnóstico , Amputação Traumática/fisiopatologia , Feminino , Traumatismos dos Dedos/diagnóstico , Traumatismos dos Dedos/fisiopatologia , Força da Mão/fisiologia , Humanos , Ossos Metacarpais/diagnóstico por imagem , Ossos Metacarpais/lesões , Pessoa de Meia-Idade , Radiografia , Polegar/lesões , Polegar/fisiopatologia
11.
Cereb Cortex ; 29(4): 1460-1472, 2019 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-30873555

RESUMO

Sensory information is processed in specific brain regions, and shared between the cerebral hemispheres by axons that cross the midline through the corpus callosum. However, sensory deprivation usually causes sensory losses and/or functional changes. This is the case of people who suffered limb amputation and show changes of body map organization within the somatosensory cortex (S1) of the deafferented cerebral hemisphere (contralateral to the amputated limb), as well as in the afferented hemisphere (ipsilateral to the amputated limb). Although several studies have approached these functional changes, the possible finer morphological alterations, such as those occurring in callosal axons, still remain unknown. The present work combined histochemistry, single-axon tracing and 3D microscopy to analyze the fine morphological changes that occur in callosal axons of the forepaw representation in early amputated rats. We showed that the forepaw representation in S1 was reduced in the deafferented hemisphere and expanded in the afferented side. Accordingly, after amputation, callosal axons originating from the deafferented cortex undergo an expansion of their terminal arbors with increased number of terminal boutons within the homotopic representation at the afferented cerebral hemisphere. Similar microscale structural changes may underpin the macroscale morphological and functional phenomena that characterize limb amputation in humans.


Assuntos
Amputação Traumática/fisiopatologia , Axônios/fisiologia , Corpo Caloso/fisiopatologia , Plasticidade Neuronal , Terminações Pré-Sinápticas/fisiologia , Córtex Somatossensorial/fisiopatologia , Amputação Traumática/patologia , Animais , Axônios/patologia , Corpo Caloso/patologia , Membro Anterior/cirurgia , Masculino , Técnicas de Rastreamento Neuroanatômico , Terminações Pré-Sinápticas/patologia , Ratos Wistar , Córtex Somatossensorial/patologia
12.
Ann Neurol ; 85(1): 137-154, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30474259

RESUMO

OBJECTIVE: Hand amputation is a highly disabling event, which significantly affects quality of life. An effective hand replacement can be achieved if the user, in addition to motor functions, is provided with the sensations that are naturally perceived while grasping and moving. Intraneural peripheral electrodes have shown promising results toward the restoration of the sense of touch. However, the long-term usability and clinical relevance of intraneural sensory feedback have not yet been clearly demonstrated. METHODS: To this aim, we performed a 6-month clinical study with 3 transradial amputees who received implants of transverse intrafascicular multichannel electrodes (TIMEs) in their median and ulnar nerves. After calibration, electrical stimulation was delivered through the TIMEs connected to artificial sensors in the digits of a prosthesis to generate sensory feedback, which was then used by the subjects while performing different grasping tasks. RESULTS: All subjects, notwithstanding their important clinical differences, reported stimulation-induced sensations from the phantom hand for the whole duration of the trial. They also successfully integrated the sensory feedback into their motor control strategies while performing experimental tests simulating tasks of real life (with and without the support of vision). Finally, they reported a decrement of their phantom limb pain and a general improvement in mood state. INTERPRETATION: The promising results achieved with all subjects show the feasibility of the use of intraneural stimulation in clinical settings. ANN NEUROL 2019;85:137-154.


Assuntos
Amputação Traumática/reabilitação , Membros Artificiais , Retroalimentação Sensorial/fisiologia , Mãos/fisiologia , Neuroestimuladores Implantáveis , Tato/fisiologia , Adulto , Amputação Traumática/fisiopatologia , Feminino , Mãos/inervação , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo
13.
J Reconstr Microsurg ; 35(3): 163-167, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30170326

RESUMO

BACKGROUND: In 1964, faced with the challenge of traumatic amputation, a team of surgeons at Clinica Guayaquil was convinced that the transplantation of a hand could significantly improve function and quality of life for the recipient. With a current but basic understanding of immunosuppression, the surgeons identified a recipient and waited for the correct donor. A human hand transplant had never been performed to date. METHODS: The surgeons' criteria for the recipient included a young healthy individual who had sustained a traumatic amputation at the distal forearm level with full motion of the proximal joints. Communication with receiving hospitals and military facilities identified what they perceived to be a feasible donor for an allograft transplantation. Consent was obtained from the family in conjunction with the local military medical authorities and the clergy. Iced saline solution and Heparin irrigation were to be used to prepare the donor extremity. The immunosuppression regimen, limited at the time, consisted only of intravenous cortisone, Imuran, and a single dose of radiation. RESULTS: A member of the Ecuadorian marine sustained a limited blast injury that amputated his dominant hand but spared the forearm. He was transferred to the emergency department of Clinica Guayaquil. A donor who had recently died in a nearby hospital was identified not long after. A successful technical surgical transplantation was achieved. Consultants from major hospitals around the world (including Peter Bent Brigham Hospital) convened at the patient's bedside to observe the results. Despite all efforts, the patient suffered an irreversible rejection at 21 days post-transplant. CONCLUSION: This was the first allograft transplantation of a hand. The surgeons embarked on an intervention never tried before, firmly believing that better function and quality of life would result. The bravery of this surgical team was commendable. This early surgical endeavor opened the way for future successes in transplant surgery today.


Assuntos
Amputação Traumática/história , Antebraço/cirurgia , Rejeição de Enxerto/história , Transplante de Mão/história , Terapia de Imunossupressão/história , Procedimentos de Cirurgia Plástica/história , Adulto , Amputação Traumática/fisiopatologia , Amputação Traumática/cirurgia , Equador , Antebraço/fisiopatologia , Rejeição de Enxerto/fisiopatologia , Transplante de Mão/métodos , História do Século XX , Humanos , Masculino , Qualidade de Vida , Procedimentos de Cirurgia Plástica/métodos , Falha de Tratamento
14.
Injury ; 49(6): 1113-1118, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29609971

RESUMO

PURPOSE: The purpose of this study was to evaluate outcomes for patients sustaining a distal fingertip amputation who underwent replantation witharteriovenous anastomosis for venous drainage over a one year period at our institution. This technique has been utilized when insufficient veins are identified in the amputated part for standard veno-venous anastomosis. METHODS: A retrospective study was performed on patients presenting from 2013 to 2014. Guillotine, crush, and avulsion/degloving injuries were included if they underwent fingertip (Tamai Zone I) replantation with arterial anastomosis for vascular inflow and arteriovenous anastomosis for venous drainage. The cases were further classified as Ishikawa subzone I and subzone II. RESULTS: Arteriovenous anastomosis for venous drainage during replantation was used in 45 digits in 35 patients. 41 of the 45 digits underwent successful replantation using this technique (91%). The mean active ROM in the DIP joint of the fingers and in the IP joint of thumbs was 65° and 57°, respectively. Sensory evaluation demonstrated a mean of 6.9 mm s2PD in digits where the digital nerves could be repaired. 11 replanted digits without nerve repair regained some sensory recovery with a mean of 9.6 mm s2PD. 91% of patients were highly satisfied with the appearance of the replanted digits based on Tamai criteria. CONCLUSIONS: Arteriovenous anastomosis for venous outflow should be considered during zone I fingertip replantation if sufficient veins are not identified in the amputated part. This technique may allow for more routine and successful distal replantation.


Assuntos
Amputação Traumática/cirurgia , Anastomose Arteriovenosa/fisiologia , Traumatismos dos Dedos/cirurgia , Dedos/inervação , Microcirurgia/métodos , Procedimentos de Cirurgia Plástica/métodos , Adolescente , Adulto , Idoso , Amputação Traumática/fisiopatologia , Anastomose Arteriovenosa/inervação , Criança , Desenluvamentos Cutâneos , Feminino , Traumatismos dos Dedos/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
15.
High Alt Med Biol ; 19(2): 185-192, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29608373

RESUMO

Gorjanc, Jurij, Shawnda A. Morrison, Rok Blagus, and Igor B. Mekjavic. Cold susceptibility of digit stumps resulting from amputation after freezing cold injury in elite alpinists. High Alt Med Biol. 19:185-192, 2018. AIM: The aim of the study was to assess whether previous freezing cold injury in fingers and/or toes might predispose alpinists to greater risk of further freezing cold injury, primarily due to a greater vasoconstrictor response to cold, resulting in a lower perfusion, reflected in lower skin temperature. METHODS: Ten elite alpinists (N = 10; 8 male and 2 female) with amputations after freezing cold injury participated in a cold-water (8°C) immersion stress test of the hands and feet. Digit skin temperatures of amputated digits, their noninjured counterparts, noninjured digits of the affected side and noninjured digits of the corresponding side were measured. The skin temperatures were compared during three consecutive phases of the cold stress test: prewarming, cold water immersion, and passive heating. RESULTS: Amputated toes cooled much faster compared to their uninjured counterparts (n = 26, p < 0.001), and attained lower skin temperatures during the cold exposure test (n = 26, p < 0.001). Higher cooling rate was observed in all the toes on the injured limb compared with the toes on the uninjured limb (n = 40, p < 0.001). In contrast to the toes, the fingers on the injured limb after freezing cold injury were warmer during cooling phase compared to uninjured fingers (n = 15, p < 0.001). CONCLUSIONS: The lower digit temperatures observed in affected toe stumps during the cold stress test compared to the nonamputated toes may indicate a heightened risk of future freezing cold injury with subsequent cold exposures, as a consequence of less perfusion, reflected in the lower skin temperature. This relationship was not confirmed in the fingers.


Assuntos
Cotos de Amputação/fisiopatologia , Amputação Traumática/complicações , Lesão por Frio/cirurgia , Temperatura Baixa/efeitos adversos , Montanhismo/lesões , Cotos de Amputação/cirurgia , Amputação Traumática/fisiopatologia , Lesão por Frio/etiologia , Feminino , Dedos/fisiopatologia , Dedos/cirurgia , Humanos , Imersão/efeitos adversos , Imersão/fisiopatologia , Masculino , Temperatura Cutânea/fisiologia , Dedos do Pé/fisiopatologia , Dedos do Pé/cirurgia , Resultado do Tratamento
16.
Microsurgery ; 38(6): 627-633, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29537712

RESUMO

BACKGROUND: Despite various exisiting monitoring methods, there is still a need for new technologies to improve the quality of post-operative evaluation of digital replantation. The purpose of the study is using a laser Doppler imaging device (Easy-LDI) as an additional tool to assess perfusion. In this method, the changes in the frequency of the laser ligth provide information regarding perfusion of the monitored tissue. PATIENTS AND METHODS: This study included seven patients (10 fingers; age of patients: 21-57 years) who suffered from a total (n = 6) or subtotal amputation (n = 4) due to accidents. In addition to hourly standard monitoring with clinical evaluation and skin thermometry, revascularized fingers were hourly monitored with Easy LDI for 48 h. RESULTS: LDI measurement values ranged between 0.8 and 223 (mean 90.62 ± 21.42) arbitrary perfusion units (APU). The mean LDI values before and after revascularization were 7.1 ± 2.85 and 65.30 ± 30.83 APU, respectively. For the successful revascularized fingers (8 of 10 fingers) values from 19 to 223 APU (mean 98.52 ± 15.48) were demonstrated. All of the replants survived, but due to venous occlusion two digits required revision 12 and 35 h after revascularization, respectively. In the two cases, Easy-LDI also showed a constant and slow decline of the perfusion values. Furthermore, Pearson normalized correlation coefficient showed a positive significant correlation between temperatures of the replants and LDI-values (P < .001, r = +0.392) and a negative significant correlation between Δtemperature and LDI-values (P < .001, r = -0.474). CONCLUSION: The LDI-device might be a promising additional monitoring technique in detection of perfusion disturbance in monitoring digital replantations.


Assuntos
Amputação Traumática/cirurgia , Traumatismos dos Dedos/diagnóstico por imagem , Traumatismos dos Dedos/cirurgia , Fluxometria por Laser-Doppler , Microcirurgia , Reimplante , Adulto , Amputação Traumática/diagnóstico por imagem , Amputação Traumática/fisiopatologia , Feminino , Traumatismos dos Dedos/fisiopatologia , Humanos , Masculino , Microcirculação/fisiologia , Pessoa de Meia-Idade , Estudos Prospectivos , Adulto Jovem
17.
J Reconstr Microsurg ; 34(4): 250-257, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29510419

RESUMO

BACKGROUND: Traumatic amputation of one or more digits can have a serious detrimental effect on social and economic standings which can be mitigated by successful replantation. Little has been recorded on preoperative management before replantation and how this affects the outcomes of the replanted digit. METHODS: A retrospective cohort study was conducted and data collected over an 18-month period. Three protocols for preoperative management were examined: minimal (basic wound management), complete Buncke (anticoagulation, dry dressing on amputate placed on indirect ice and absence of a digital block), and incomplete (any two or three criteria from complete Buncke in addition to the minimal) protocols. Data was collected on survival rate, secondary operations, and complication rate. Function was defined by sensation, range of movement, and strength. RESULTS: Seventy four of 177 digits were replanted with an overall survival rate of 86.5%. The rates for minimal, incomplete, and complete protocols were 95%, 87%, and 91%, respectively, and not significantly different. The complication rate was significantly different between the complete (20%) and minimal (60%) protocols (p = 0.0484). Differences in sensation and grip strength were statistically significant between protocols (p = 0.0465 and p = 0.0430, respectively). Anticoagulation, no digital block and dry gauze all showed reduced complication rates in comparison to their counterparts. CONCLUSIONS: The Buncke protocol, which includes anticoagulation, no digital block, and dry gauze, was found to significantly reduce the complication rate which suggests that it prevents compromise of tissue integrity. Significant differences were found between protocols for sensation and grip strength. A higher-powered study is needed to investigate the effects of preoperative management on complication rates and functional outcomes.


Assuntos
Amputação Traumática/cirurgia , Traumatismos dos Dedos/cirurgia , Força da Mão/fisiologia , Microcirurgia , Recuperação de Função Fisiológica/fisiologia , Reimplante , Adolescente , Adulto , Idoso , Amputação Traumática/fisiopatologia , Amputação Traumática/psicologia , Criança , Pré-Escolar , Feminino , Traumatismos dos Dedos/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Cuidados Pré-Operatórios/métodos , Estudos Retrospectivos , Retorno ao Trabalho , Fatores Socioeconômicos , Resultado do Tratamento , Adulto Jovem
18.
Pain ; 159(7): 1289-1296, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29554015

RESUMO

A comprehensive functional recovery is one of the criteria for successful replantation of an amputated limb. Functionality of a replanted limb is strongly dependent on its regained sensibility. In previous studies concerning the sensibility of replanted limbs, only a few somatosensory submodalities were examined in small samples. The purpose of this study is to provide a full pattern of somatosensory symptoms after replantation. Quantitative sensory testing was performed according to a standardized protocol in a sample of 15 patients who underwent replantation of their upper limb proximal to the radiocarpal joint (macroreplantation). Results indicate that most of these patients showed a specific somatosensory profile characterized by thermal and mechanical hypoesthesia and hyperalgesia in response to pressure pain, whereas no single case of hyperalgesia to heat pain occurred. This distinct profile of impaired somatosensation shares some features of the somatosensory profile of neuropathic pain syndromes. Patients' limbs that were replanted many years before the present quantitative sensory testing showed more sensory deficits than patients with more recent replantations. This knowledge might be helpful in the development of more specific and more successful rehabilitation programs with replanted patients and improves the behavioral function of the replanted limb.


Assuntos
Amputação Traumática/fisiopatologia , Hiperalgesia/fisiopatologia , Condução Nervosa/fisiologia , Neuralgia/fisiopatologia , Limiar da Dor/fisiologia , Recuperação de Função Fisiológica/fisiologia , Adolescente , Adulto , Idoso , Amputação Traumática/complicações , Amputação Traumática/cirurgia , Feminino , Humanos , Hiperalgesia/etiologia , Masculino , Pessoa de Meia-Idade , Neuralgia/etiologia , Estimulação Física , Percepção do Tato/fisiologia , Adulto Jovem
19.
Foot Ankle Surg ; 24(6): 506-508, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29409276

RESUMO

BACKGROUND: Unilateral lower limb amputation can alter the tissue morphology leading to increase future risk of degenerative secondary disorders. METHODS: Thirty-four consecutive male patients with unilateral lower limb amputations of different levels and 34 well matched male controls were included. To explore whether the ankles of traumatic lower limb amputees were undergoing morphological changes, three different tissue types i.e. talar cartilage, plantar fascia and Achilles tendon thicknesses in the intact limb of the lower limb amputee and healthy controls were measured by using ultrasound. RESULTS: Plantar fascia was found to be thicker (p=0.013) and talar cartilage was thinner (p<0.001) on the intact sides of the patients than those of the controls. Achilles tendon thickness was found to be similar. In patients group, plantar fascia thickness was positively correlated with age (r=0.601, p<0.001), BMI (r=0.454, p=0.007) and durations of amputation (r=0.443, p=0.009) and prosthetic use (r=0.429, p=0.011). Achilles tendon thickness was positively correlated with durations of amputation (r=0.338, p=0.05) and prosthetic use (r=0.468, p=0.005). In controls group, talar cartilage thickness was negatively correlated with age (r=-0.640, p<0.001) and BMI (r=-0.401, p=0.019). CONCLUSIONS: The talar cartilage seemed to be thinner and the plantar fascia to be thicker on the intact sides of the unilateral limb amputees.


Assuntos
Tendão do Calcâneo/diagnóstico por imagem , Amputação Traumática/fisiopatologia , Cartilagem Articular/diagnóstico por imagem , Fáscia/diagnóstico por imagem , Pé/diagnóstico por imagem , Tálus/diagnóstico por imagem , Tendão do Calcâneo/fisiopatologia , Adolescente , Adulto , Amputação Traumática/complicações , Tornozelo/diagnóstico por imagem , Tornozelo/fisiopatologia , Cartilagem Articular/fisiopatologia , Fáscia/fisiopatologia , Pé/fisiopatologia , Humanos , Traumatismos da Perna/fisiopatologia , Masculino , Tálus/fisiopatologia , Ultrassonografia , Adulto Jovem
20.
BJU Int ; 121(5): 699-702, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29331084

RESUMO

Male genital emergencies relating to the penis and scrotum are rare and require prompt investigation and surgical intervention. Clinicians are often unfamiliar with the management of these conditions and may not work in a specialist centre with on-site expertise in genitourethral surgery. A series of consensus statements have been developed by an expert consensus committee comprising members of the British Association of Urological Surgeons (BAUS) Section of Andrology and Genitourethral Surgery together with experts from urology units throughout the UK. Penile amputation is a rare genital emergency, which requires prompt intervention and microsurgical reconstruction. The consensus statements will outline the management of these cases for non-specialist units, as well as recommendations for reconstruction for specialists.


Assuntos
Amputação Traumática/cirurgia , Microcirurgia , Pênis/cirurgia , Procedimentos de Cirurgia Plástica , Urologia/educação , Amputação Traumática/fisiopatologia , Educação Médica Continuada , Retalhos de Tecido Biológico , Humanos , Masculino , Microcirurgia/métodos , Prótese de Pênis , Pênis/irrigação sanguínea , Guias de Prática Clínica como Assunto , Artéria Radial/fisiopatologia , Procedimentos de Cirurgia Plástica/métodos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...