ABSTRACT
PURPOSE: Disc perforation (DP) is one of the most important pathologic signs of intracapsular temporomandibular joint (TMJ) disease; however, few clinical studies have focused on the arthroscopic management of this feature. The purpose of the present study was to assess whether operative arthroscopy with abrasion of the perforation borders is effective for the treatment of this alteration of the internal derangement of the TMJ. PATIENTS AND METHODS: Thirty-six patients (39 joints) who underwent TMJ arthroscopy under general anesthesia and presented with DP (Wilkes stages IV and V) from 1994 through 2006 were included in this study. The age range at the time of surgery was 14 to 59 years. DPs were classified into 3 groups according to size: small (SMA), medium (MED), or large (LAR). Pain (visual analog scale, scores 0 to 100), maximal interincisal opening, and lateral and protrusive excursions were assessed at 1, 3, 6, 12, 24 and 48 months after surgery. Preoperative and postoperative scores were compared and tested for statistically significant differences by the Student t test for paired data. The level of statistical significance was set at .05. Differences in the global, SMA, MED, and LAR groups were evaluated. RESULTS: In the global group, the mean score of preoperative pain according to the visual analog scale was 53.97 mm, which decreased to 14.33 mm at 4-year follow-up. The maximal interincisal opening improved from a mean of 28.56 mm before surgery to 34.88 mm after the final follow-up. SMA perforations were found in 11 cases (28.20%), MED in 19 cases (48.71%), and LAR in 9 cases (23.07%). A significant decrease in pain (P < .01) was observed from the first postoperative month to the end of the follow-up period in the global and SMA groups. A statistically significant increase in mouth opening was observed in the global group from 6 months postoperatively; however, no significant differences were observed in the MED and LAR groups from before surgery to the different times of follow-up. After the final follow-up, 2 patients underwent open TMJ surgery owing to unfavorable results. CONCLUSIONS: Operative arthroscopy of the TMJ is a reliable and effective procedure for the articular dysfunction associated with DP because this procedure alleviates pain and improves mouth opening. Patients with SMA perforations are better candidates for this surgical treatment.
Subject(s)
Arthroscopy/methods , Temporomandibular Joint Disc/pathology , Temporomandibular Joint Disc/surgery , Temporomandibular Joint Disorders/surgery , Adolescent , Adult , Facial Pain/surgery , Female , Humans , Middle Aged , Pain Measurement , Retrospective Studies , Statistics, Nonparametric , Treatment Outcome , Young AdultABSTRACT
Objetivos. Evaluar la importancia del diseño del implante en el desarrollo de la fractura, en cuanto al tipo de conexión protésica y la diferencia de diámetros entre la plataforma y el cuerpo del implante. Material y métodos. Se analiza un grupo de 33 implantes fracturados entre los años 2000 y 2009. Se recogen los datos relacionados con el implante y la rehabilitación protésica, y se compararon la existencia de diferencias significativas entre el tipo de conexión del implante y entre el tipo de plataforma para los implantes de conexión externa (diámetro 3,75mm o superior frente a 3,4mm de plataforma 4,1). Resultados. Las 33 fracturas acontecieron en un total de 23 pacientes, 13 de estas fracturas (8 pacientes) provenían de otros centros y las 20 restantes (15 pacientes) se recogieron sobre un total de 2.765 implantes colocados en nuestra consulta. Dentro de este grupo, se comparó la frecuencia de fractura de los implantes de 3,4mm frente a los de 3,75mm o superior (ambos con la misma plataforma de 4,1mm), encontrando diferencias significativas entre ambos grupos (p=0,02). Sin embargo, no se encontraron diferencias entre la conexión protésica externa frente a la interna (p=0,7). Conclusiones. La fractura implantaría es una complicación infrecuente. La incidencia en nuestro grupo de pacientes fue del 0,72%. El riesgo de fractura se relaciona con el diseño del implante, y es elevado en implantes que tienen gran diferencia de diámetros entre la zona superior y el cuerpo, es decir, en implantes estrechos que tienen una plataforma ancha. El tipo de conexión protésica parece no tener relación(AU)
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Subject(s)
Humans , Male , Female , Treatment Failure , Prostheses and Implants/standards , Prostheses and Implants , Surgery, Oral/methods , Surgery, Oral , Maxillofacial Prosthesis Implantation/methods , Maxillofacial Prosthesis Implantation/trends , Maxillofacial Prosthesis Implantation , Fracture Fixation/trends , Fracture Fixation, Internal/methods , Retrospective Studies , Biomechanical Phenomena/physiologyABSTRACT
El síndrome de Lemierre es una patología muy infrecuente en la época actual, pero muy grave, y siempre debe considerarse ante un cuadro de fiebre con antecedente de infección orofaríngea, tumefacción laterocervical a lo largo del músculo esternocleidomastoideo y signos de sepsis. El diagnóstico de este síndrome es fundamentalmente clínico, y las pruebas complementarias tan sólo ayudan a confirmar el cuadro. Presentamos el caso de un varón de 31 años que acudió a urgencias con clínica de faringoamigdalitis junto con tumefacción en la región submandibular izquierda e importante dolor cervical ipsilateral, que mostró un deterioro rápido y progresivo del estado general pese al tratamiento antibiótico intravenoso. Finalmente tuvo que ser intervenido debido al desarrollo de mediastinitis aguda necrosante descendente desde la región pretiroidea hasta el diafragma, con trombosis de la vena yugular interna izquierda. Se le realizó toracotomía urgente y cervicotomía izquierda con drenaje de abundante material purulento y ligadura de la vena yugular interna(AU)
Lemierre syndrome is a potentially fatal condition after an oropharyngeal infection. It is characterized by thrombophlebitis of head and neck veins with systemic dissemination of septic emboli. The diagnosis of this syndrome is mainly clinical and complementary test only serve as aid to confirm it. We report an unusual case of Lemierre syndrome in a 31-year-old man caused by Gemella spp. and Streptococcus pyogenes. It developed following a pharyngotonsillitis infection, which deteriorated rapidly and progressively despite intravenous antibiotic treatment. He finally had to be intervened due to developing acute descending necrotizing mediastinitis from the pre-thyroid region to the diaphragm, with thrombosis of the internal jugular vein. An urgent thoracotomy and left cervicotomy was performed, with drainage of abundant purulent material and ligature of the internal jugular vein. We also discuss its atypical clinical presentation, the crucial role of imaging in the early diagnosis, and the different treatment options of this life-threatening syndrome(AU)
