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1.
BMJ Open ; 9(12): e032785, 2019 12 30.
Artículo en Inglés | MEDLINE | ID: mdl-31892660

RESUMEN

OBJECTIVES: Identifying the issues and concerns that matter most to burns survivors can be challenging. For a number of reasons, but mainly relating to patient empowerment, some of the most pressing concerns patients may have during a clinical encounter may not naturally be the focal point of that encounter. The Patient Concerns Inventory (PCI) is a tried and tested concept initially developed in the field of head and neck cancer that empowers patients during a clinical encounter through provision of a list of prompts that allows patients to self-report concerns prior to consultation. The aim of this study was to develop a PCI for adult burns patients. DESIGN: Content for the PCI was generated from three sources: burns health-related quality of life tools, thematic analysis of one-to-one interviews with 12 adult burns patients and 17 multidisciplinary team (MDT) members. Content was refined using a Delphi consensus technique, with patients and staff members, using SurveyMonkey. SETTING: Within outpatient secondary care. PARTICIPANTS: Twelve adult burns patients and MDT members from two regional burns centres. RESULTS: A total of 111 individual items were generated from the three sources. The Delphi process refined the total number of items to 58. The main emergent domains were physical and functional well-being (18 items), psychological, emotional and spiritual well-being (22 items), social care and social well-being (7 items) and treatment-related concerns (11 items). CONCLUSIONS: The Adult Burns Patient Concerns Inventory is a 58-item, holistic prompt list, designed to be used in the outpatient clinic. It offers a new tool in burn care to improve communication between healthcare professionals and patients, empowering them to identify their most pressing concerns and hence deliver a more focused and targeted patient-centred clinical encounter.


Asunto(s)
Atención Ambulatoria/métodos , Quemaduras , Participación del Paciente , Calidad de Vida , Autoinforme/normas , Sobrevivientes/psicología , Unidades de Quemados , Quemaduras/psicología , Quemaduras/rehabilitación , Femenino , Salud Holística , Humanos , Masculino , Persona de Mediana Edad , Cuestionario de Salud del Paciente , Participación del Paciente/métodos , Participación del Paciente/psicología , Prioridad del Paciente , Rendimiento Físico Funcional , Derivación y Consulta/organización & administración
2.
Clin Biomech (Bristol, Avon) ; 29(3): 289-95, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24461558

RESUMEN

BACKGROUND: Management of impending pathologic femoral neck fractures includes internal fixation, arthroplasty and megaprostheses. The study aim was to determine the augmentative effect of cement injection for minimally invasive treatment of femoral neck lesions. METHODS: Twenty-seven cadaveric femora received a simulated osteolytic lesion previously shown to decrease the femur's failure load by 50%. Specimens were allocated to three groups of nine and loaded to failure in simulated single-leg stance: (1) percutaneous cementation + internal fixation (PCIF); (2) percutaneous cementation (PC); and (3) internal fixation (IF). Lesion-only and augmented finite element models were virtually loaded and stresses were queried adjacent to the lesion. FINDINGS: PCIF resulted in the largest failure load though the increase was not significantly greater than the PC or IF groups. Inspection of the PC and PCIF specimens indicated that the generation of a cement column that spanned the superior and inferior cortices of the femoral neck increased failure loads significantly. Finite element analysis indicated that IF and PCIF constructs decreased the stress adjacent to the lesion to intact femur levels. Cementation without superior-to-inferior femoral neck cortical contact did not restore proximal femoral stress toward the intact condition. INTERPRETATION: Internal fixation alone and internal fixation with or without cementation produce similar levels of mechanical augmentation in femora containing a high-risk lesion of impending fracture. A cement injection technique that produces a cement column contacting the superior and inferior femoral neck cortices confers the highest degree of biomechanical stability, should percutaneous cementation alone be performed.


Asunto(s)
Cementos para Huesos/uso terapéutico , Cementación/métodos , Fracturas del Cuello Femoral/prevención & control , Fijación Interna de Fracturas/métodos , Fenómenos Biomecánicos , Cadáver , Cuello Femoral/cirugía , Análisis de Elementos Finitos , Humanos , Osteólisis/complicaciones , Osteólisis/terapia
3.
Clin Biomech (Bristol, Avon) ; 28(4): 408-14, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23597777

RESUMEN

BACKGROUND: Multiple classifications combine objective and subjective measures to predict fracture risk through a metastatic lesion. In our literature review, no studies have attempted to validate this predicted fracture risk from a biomechanical perspective. The study goal was to evaluate proximal femur strength after creating osteolytic defects. We report a standardized technique to re-create a metastatic lesion. METHODS: Eight femoral matched pairs were procured and a standardized technique was used to create an osteolytic femoral neck defect in one femur with the contralateral specimen serving as the control. Femurs were loaded to failure in a material testing machine at 2 mm/s. Failure load (N) and location of failure were documented. 3D finite element (FE) femur models with and without the lesions were developed to predict von Mises stresses in the femoral neck and compare between the two models. FINDINGS: Femurs containing the osteolytic defect failed at significantly lower loads than the intact specimens in a reproducible manner (intact: 10.69 kN (3.09 SD); lesion: 5.56 kN (2.03 SD), p<0.001). The average reduction in failure load was 48%, and the fracture pattern was consistent in all specimens. FE model comparison similarly predicted significantly higher von Mises stress at the lesion. INTERPRETATION: Our methods and pathologic fracture model represent the clinical parameters of metastatic bone disease and suggest a significant reduction in structural integrity of the lesion-containing femur. Prophylactic surgical fixation may be warranted clinically to reduce the risk of pathologic fracture. Our model technique is reproducible and may be used in future studies.


Asunto(s)
Fracturas del Fémur/diagnóstico por imagen , Fracturas del Fémur/fisiopatología , Fracturas Espontáneas/diagnóstico por imagen , Fracturas Espontáneas/fisiopatología , Modelos Anatómicos , Anciano , Neoplasias Óseas/complicaciones , Neoplasias Óseas/secundario , Fracturas del Fémur/etiología , Cuello Femoral/diagnóstico por imagen , Análisis de Elementos Finitos , Fracturas Espontáneas/etiología , Humanos , Persona de Mediana Edad , Osteólisis/fisiopatología , Radiografía , Medición de Riesgo
4.
Int J Spine Surg ; 7: e101-8, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-25694896

RESUMEN

BACKGROUND: The lateral transpsoas approach to interbody fusion is gaining popularity. Existing literature suggests that perioperative vertebra-related complications include endplate breach owing to aggressive enedplate preparation and poor bone quality. The acute effects of cage subsidence on stabilization and indirect decompression at the affected level are unknown. The purpose of this study was to compare the kinematics and radiographic metrics of indirect decompression in lumbar spines instrumented with laterally placed cages in the presence of inadvertent endplate fracture, which was determined radiographically, to specimens instrumented with lateral cages with intact endplates. METHODS: Five levels in 5 specimens sustained endplate fracture during lateral cage implantation followed by supplementary fixation (pedicle screw/rod [PSR]: n = 1; anterolateral plate [ALP]: n = 4), as part of a larger laboratory-based study. Range of motion (ROM) in these specimens was compared with 13 instrumented specimens with intact endplates. All specimens were scanned using computed tomography (CT) in the intact, noninstrumented condition and after 2-level cage placement with internal fixation under a 400-N follower load. Changes in disc height, foraminal area, and canal area were measured and compared between specimens with intact endplates and fractured endplates. RESULTS: Subsidence in the single PSR specimen and 4 ALP specimens was 6.5 mm and 4.3 ± 2.7 mm (range: 2.2-8.3 mm), respectively. ROM was increased in the PSR and ALP specimens with endplate fracture when compared with instrumented specimens with intact endplates. In 3 ALP specimens with endplate fracture, ROM in some motion planes increased relative to the intact, noninstrumented spine. These increases in ROM were paralleled by increase in cage translations during cyclic loading (up to 3.3 mm) and an unpredictable radiographic outcome with increases or decreases in posterior disc height, foraminal area, and canal area when compared with instrumented specimens with intact endplates. CONCLUSIONS: Endplate fracture and cage subsidence noted radiographically intraoperatively or in the early postoperative period may be indicative of biomechanical instability at the affected level concomitant with a lack of neurologic decompression, which may require revision surgery.

5.
J Arthroplasty ; 28(4): 604-7, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23123042

RESUMEN

Revision arthroplasty of large tibial defects remains a challenge. Thirty revision knee arthroplasties using a porous titanium tibial sleeve for Anderson Orthopaedic Research Institute (AORI) Type 2B and Type 3 defects with minimum 2year follow up were retrospectively reviewed. The average Knee Society Score increased from 55 pre-operatively to 92 post-operatively. Six patients had a repeat operation though none were sleeve related. All radiographs at final follow-up showed well fixed components with osseous in-growth. Seven patients had end-of-stem pain, four of which resolved. Our short-term results show that porous titanium sleeves are a promising option when managing large areas of metaphyseal bone loss by filling defects and providing stable construct with biologic fixation.


Asunto(s)
Artroplastia de Reemplazo de Rodilla , Prótesis de la Rodilla , Tibia/cirugía , Anciano , Anciano de 80 o más Años , Femenino , Estudios de Seguimiento , Humanos , Articulación de la Rodilla/diagnóstico por imagen , Articulación de la Rodilla/cirugía , Masculino , Persona de Mediana Edad , Diseño de Prótesis , Radiografía , Reoperación , Estudios Retrospectivos
7.
Oral Maxillofac Surg Clin North Am ; 23(3): 379-86, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21798438

RESUMEN

Displaced objects can occur in the practice of almost all procedures performed in the scope of oral and maxillofacial surgery. Anticipation of such occurrences is the hallmark of their prevention. The institution of proper techniques can help in reducing such occurrences. Knowledge of the techniques available in treating these incidences can greatly assist in their resolutions. This article sheds light on the prevention and management of such dreaded mishaps.


Asunto(s)
Cuerpos Extraños/etiología , Procedimientos Quirúrgicos Orales/efectos adversos , Deglución , Implantes Dentales/efectos adversos , Cuerpos Extraños/prevención & control , Humanos , Enfermedad Iatrogénica , Seno Maxilar , Músculos del Cuello , Procedimientos Quirúrgicos Orales/instrumentación , Faringe , Aspiración Respiratoria/etiología , Hueso Temporal , Avulsión de Diente/etiología , Extracción Dental/efectos adversos
9.
Orthopedics ; 32(12): 919, 2009 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19968226

RESUMEN

Extraskeletal myxoid chondrosarcoma is a malignant cartilage tumor that rarely presents in the joint space. This article presents a case of a man who presented with a 1-year history of continuous growth of a mass over the medial aspect of his right knee. Radiographs demonstrated osteoarthritis, and arthroscopy was performed for degenerative joint disease. At the time of surgery, an intra-articular mass was encountered and an unplanned biopsy was performed. Pathological analysis revealed the mass to be a primary extraskeletal, intra-articular chondrosarcoma. He had no history of malignancy. He underwent extra-articular resection of the lesion and reconstruction with endoprosthesis. The patient's clinical course required multiple re-operations, and pulmonary metastases developed. A gastrocnemius flap was performed for wound coverage in proximity to the resected arthroscopy portals. This case emphasizes the importance of proper preoperative imaging and planning for lesion biopsies. Proper initial management may have led to lesser overall morbidity. Review of the literature reveals that this is the only reported case of a primary intra-articular extraskeletal myxoid chondrosarcoma.


Asunto(s)
Enfermedades de los Cartílagos/diagnóstico , Enfermedades de los Cartílagos/cirugía , Condrosarcoma/diagnóstico , Condrosarcoma/cirugía , Articulación de la Rodilla/diagnóstico por imagen , Articulación de la Rodilla/cirugía , Neoplasias Óseas/diagnóstico por imagen , Neoplasias Óseas/cirugía , Humanos , Masculino , Persona de Mediana Edad , Radiografía , Enfermedades Raras , Resultado del Tratamiento
11.
Expert Rev Med Devices ; 5(4): 467-74, 2008 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-18573046

RESUMEN

Children with primary bone tumors require radical surgical procedures and complex reconstructions. In addition to adequate disease control, the surgeon has to address the injured growth plate and consequent limb length inequality. Extendable prostheses constitute an alternative to other limb-salvaging techniques. Since the first description of the device three decades ago, several changes in materials, design and indications have been a matter of constant debate. The indications and results of this prosthesis will be reviewed and an expert commentary regarding the current and future trends of the device will be presented.


Asunto(s)
Miembros Artificiales , Neoplasias Óseas/cirugía , Recuperación del Miembro , Procedimientos Ortopédicos/instrumentación , Osteosarcoma/cirugía , Adolescente , Neoplasias Óseas/diagnóstico por imagen , Niño , Humanos , Diferencia de Longitud de las Piernas/etiología , Diferencia de Longitud de las Piernas/prevención & control , Procedimientos Ortopédicos/efectos adversos , Procedimientos Ortopédicos/tendencias , Osteosarcoma/diagnóstico por imagen , Diseño de Prótesis , Radiografía , Resultado del Tratamiento
12.
Surg Technol Int ; 15: 81-5, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-17029166

RESUMEN

Laparoscopic cholecystectomy is one of the most commonly undertaken procedures in General Surgery with more than 500,000 performed annually. Overall, the complication rate is less than 1.5%, and the mortality rate is less than 0.1%. As such, laparoscopic cholecystectomy was considered by most to be at its zenith since its inception in the early 1990 s. Advancements in technology and equipment have opened new doors to physicians and allowed the laparoscopic cholecystectomy to once again evolve. Traditional four-port cholecystectomy has given way to three- and even two-port techniques. Standard 12-mm ports have been replaced by 2-mm ports, and experiments have now been implemented to achieve cholecystectomy with no ports-known as the transgastric technique. The authors reviewed evolution of these techniques that included a synopsis of our experience with the three-port cholecystectomy, as well as the future direction of laparoscopic surgery.


Asunto(s)
Colecistectomía Laparoscópica/instrumentación , Colecistectomía Laparoscópica/tendencias , Laparoscopios/tendencias , Procedimientos Quirúrgicos Mínimamente Invasivos/instrumentación , Procedimientos Quirúrgicos Mínimamente Invasivos/tendencias , Colecistectomía Laparoscópica/métodos , Diseño de Equipo , Predicción , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Evaluación de la Tecnología Biomédica
13.
Am Surg ; 72(6): 505-10, 2006 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-16808203

RESUMEN

Hepatic artery infusional (HAI) chemotherapy has been shown to favorably impact outcome in patients with metastatic colorectal cancer, but complications often preclude complete treatment. The purpose of this study was to determine whether HAI complications impact survival in these patients. Patients undergoing HAI pump placement at our institution from September 2001 to July 2004 were separated into terciles based on the number of treatments completed: < or = 1 (none), 2 to 4 (partial), and > or = 5 (complete). Complications relating to pump placement or treatment were recorded for each and their impact on survival was determined. Kaplan-Meier survival in 15 patients receiving no treatment was significantly shorter than 7 patients completing therapy (P = 0.02). Thirty-three per cent of patients receiving no therapy were alive at 26 months, whereas 63 per cent of partially and 86 per cent of completely treated patients were alive at 32 and 30 months, respectively. Patients receiving no treatment had more overall complications (80%) and significantly (P < 0.05) more pump-related complications (60%) than those completing therapy (43% and 0%, respectively). Cox regression revealed a significant correlation to gender (hazard ratio, 3.9), tumor size (hazard ratio, 1.17), and carcinoembryonic antigen level (hazard ratio, 1.02) to survival. Patients receiving complete HAI treatment survive longer than those receiving no treatment. Potentially preventable pump-related complications not only impacted the patients' ability to continue therapy, but survival times as well.


Asunto(s)
Antineoplásicos/administración & dosificación , Neoplasias Colorrectales/patología , Arteria Hepática , Bombas de Infusión Implantables , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/terapia , Anciano , Antineoplásicos/efectos adversos , Ablación por Catéter , Terapia Combinada , Femenino , Hepatectomía , Humanos , Bombas de Infusión Implantables/efectos adversos , Infusiones Intraarteriales , Neoplasias Hepáticas/secundario , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tasa de Supervivencia
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