ABSTRACT
La proliferación desordenada de histiocitos muy similares a células de Langerhans da lugar a un tipo de patología que se conoce como histiocitosis de células de Langerhans. La histiocitosis de células de Langerhans es una enfermedad rara, poco frecuente, de etiología no muy clara y que se caracteriza por manifestaciones de variable presentación: desde una afectación de varios órganos o sistemas y con una mortalidad muy elevada, hasta una lesión única, bien sea con compromiso óseo o con patología pulmonar, de favorable evolución, incluso hasta la regresión espontánea. Es frecuente que exista sólo patología oral o que ésta acompañe al resto de la sintomatología general. A nivel bucal, puede presentar lesiones óseas líticas en un único o en varios puntos; se pueden ver, así mismo, fracturas patológicas de la mandíbula, dolor, úlceras bucales, compromiso periodontal con bolsas periodontales marcadas, acusada movilidad de piezas dentales con pérdida prematura de dientes, erupción precoz de dientes, etc (AU)
Langerhans cell histiocytosis (LCH) is a rare disorder of unknown etiology, characterized by disorganized proliferation of histiocytes similar to Langerhans cells. Variable clinical manifestations are observed in this entity: from acute multisistemic disease, associated with high mortality, to bone or lung lesions of favorable prognosis. Oral involvement may be present with or without other clinical signs. Osteolytic bone lesions, isolated or multiple areas of the maxilla, pathological mandibular fractures, pain, eritematous ulcerations, periodontal disease that may lead to periodontal deep pockets and alveolar bone loss, dental mobility, premature tooth eruption and premature dental loss may exist as oral manifestations of the disease (AU)
Subject(s)
Humans , Male , Infant , Histiocytosis, Langerhans-Cell/epidemiology , Tooth Eruption , Mouth Diseases/epidemiology , Tooth Mobility/epidemiology , Antigens, CD34/analysisABSTRACT
Objetivo. Evaluar a largo plazo, el resultado clínico-radiológico, la supervivencia y las complicaciones intra y postoperatorias de pacientes intervenidos de cirugía de revisión de cadera mediante esta técnica. Material y métodos. Estudio analítico observacional, prospectivo y no aleatorizado de 26 pacientes intervenidos de cirugía de revisión de cadera en nuestro hospital (1997-1998), a los que se les realizó un seguimiento clínico-radiológico y un análisis de la supervivencia del implante. Resultados. Se observan diferencias estadísticamente significativas en los valores pre y postoperatorios de las escalas de Harris y de Merle D'Aubigne. La supervivencia del implante teniendo en cuenta como punto final la cirugía de revisión fue del 84% a los 13 años. Hubo 9 complicaciones intraoperatorias (6 de ellas fueron fracturas) e influyeron de forma significativa en la estancia hospitalaria. El 70% de los pacientes no tuvo ninguna complicación postoperatoria. Ninguna de las variables analizadas influyó en el hundimiento radiográfico de los implantes. Discusión. Diversas técnicas intentan solventar el déficit de stock óseo en las cirugías de revisión de cadera, pero solo una intenta recuperarlo, el injerto compactado. Conclusiones. La técnica de Ling ofrece una mejoría clínica tanto en la escala de Merle D'Aubigne como en la de Harris, a medio-largo plazo. La presentación de complicaciones intraoperatorias incrementa la estancia hospitalaria y los días necesarios para iniciar la sedestación. La técnica de Ling es una buena opción a tener en cuenta en pacientes jóvenes en los que es previsible que haya una nueva cirugía de revisión en el futuro (AU)
Objective. Long term clinical and radiological evaluation of results, survival, and peri- operative and post-operative complications of the patients who have been operated on for revision total hip arthroplasty using the impaction allografting and cemented rod technique. Material and methods. An observational, analytical, prospective and non-random study was conducted on 26 patients who underwent revision total hip arthroplasty in our Hospital (1997-98). They were clinically and radiologically assessed, and a survival analysis of the implant was performed. Results. Statistically significant differences were identified in the pre- and post-operative values, according to Harris and Merle D'Aubigne scores. The femoral components survival was considered as an endpoint of the revision replacement, which was 84% at a mean of 13 years. There were 9 intraoperative complications (6 were fractures) and they significantly affected the length of hospital stay. No post-operative complications were observed in 70% of the patients. None of the analysed variables had any influence on the radiological subsidence of the femoral component. Discussion. Several techniques aim to solve the bone stock deficiency in revision total hip arthroplasty, but only impaction grafting attempts to recover it. Conclusions. The Ling's technique shows an improvement over the Merle D'Aubigne and Harris scores, in the medium-long term. The intraoperative complications are mainly an increase in the length of hospital stay and the number of days needed to be able to sit down. Ling's technique is a good option to consider in young patients where it is foreseeable that there is a new revision surgery in the future (AU)
Subject(s)
Humans , Male , Female , Middle Aged , Aged , Composite Tissue Allografts/surgery , Hip Injuries , Hip Injuries/surgery , Orthopedic Procedures/methods , Orthopedic Procedures/trends , Hip Prosthesis , Arthroplasty, Replacement, Hip/methods , Survivorship/physiology , Prospective Studies , Intraoperative Complications/prevention & control , Intraoperative Complications/surgery , Length of Stay/statistics & numerical dataABSTRACT
OBJECTIVE: Long term clinical and radiological evaluation of results, survival, and peri- operative and post-operative complications of the patients who have been operated on for revision total hip arthroplasty using the impaction allografting and cemented rod technique. MATERIAL AND METHODS: An observational, analytical, prospective and non-random study was conducted on 26 patients who underwent revision total hip arthroplasty in our Hospital (1997-98). They were clinically and radiologically assessed, and a survival analysis of the implant was performed. RESULTS: Statistically significant differences were identified in the pre- and post-operative values, according to Harris and Merle DÌAubigne scores. The femoral components survival was considered as an endpoint of the revision replacement, which was 84% at a mean of 13 years. There were 9 intraoperative complications (6 were fractures) and they significantly affected the length of hospital stay. No post-operative complications were observed in 70% of the patients. None of the analysed variables had any influence on the radiological subsidence of the femoral component. DISCUSSION: Several techniques aim to solve the bone stock deficiency in revision total hip arthroplasty, but only impaction grafting attempts to recover it. CONCLUSIONS: The Ling's technique shows an improvement over the Merle DÌAubigne and Harris scores, in the medium-long term. The intraoperative complications are mainly an increase in the length of hospital stay and the number of days needed to be able to sit down. Ling's technique is a good option to consider in young patients where it is foreseeable that there is a new revision surgery in the future.
Subject(s)
Arthroplasty, Replacement, Hip/methods , Bone Cements , Bone Transplantation/methods , Femur/transplantation , Hip Joint/surgery , Hip Prosthesis , Aged , Arthroplasty, Replacement, Hip/instrumentation , Equipment Failure Analysis , Female , Follow-Up Studies , Hip Joint/diagnostic imaging , Humans , Male , Middle Aged , Outcome Assessment, Health Care , Prospective Studies , Prosthesis Failure , Radiography , Reoperation/instrumentation , Reoperation/methods , Transplantation, HomologousABSTRACT
Se realizó un estudio observacional descriptivo entre octubre del 2008 y abril del 2009. Se seleccionaron 368 niños de 3 a 9 años del área sanitaria de Ferrol, con el objetivo de identificar la prevalencia de mal oclusión en relación con los hábitos de succión no nutritivos (HSNN), (digital, chupete, biberón) y respiración oral. También se realiza una comparación con el resto de estudios sobre el mismo tema, para poder saber cómo estamos actuando, desde el punto de vista preventivo, en la información sobre las consecuencias nocivas de los hábitos de succión no nutritivos en el desarrollo de una buena oclusión dental (AU)
A descriptive observational study was carried out between October 2008 and April 2009. 368 children between3 and 12 years-old were selected in Ferrol Health Board in order to identify the prevalence of the malocclusion related to the following non-nutritive oral habits: thumb sucking, dummy and mouth breathing. In addition, a comparison with other studies about the same theme is carried out in order to establish how we are acting, from the preventative point of view, on the information about the harmful consequences of the non-nutritive habits in the development of a good dental occlusion (AU)
