Congenital elbow luxation grade I treated by radial head ostectomy in an English Bulldog / Luxação congênita de cotovelo grau I tratada por ostectomia da cabeça do rádio em um Bulldog Inglês

O objetivo deste relato foi o de apresentar o acompanhamento tardio de um caso de luxação congênita de cabeça de rádio (LCCR) em um Buldog Inglês jovem, tratada por ostectomia da cabeça radial (OCR). A LCCR é uma condição incomum nos cães, mas é a forma mais comum de luxação de cotovelo nos mesmos (grau I). Um Bulldog Inglês, macho, 6 meses, 14 quilos, foi atendido com suspeita de luxação do cotovelo. Exame físico revelou uma proeminência na superfície lateral do cotovelo direito, além de claudicação grau I e dor leve. Amplitude de movimento apresentava-se normal. Radiografias e tomografia prévias confirmaram LCCR. Optou-se pela OCR ao invés de técnicas corretivas, devido à idade do animal à época do procedimento e à dificuldade no reposicionamento do rádio na articulação. Após 3 anos e meio de pós-operatório, foram realizados novos exames clínicos e radiográficos. O paciente não apresentava dor, apresentava bom apoio do membro e boa amplitude de movimento, permitindo bom movimento do cotovelo. Houve um novo crescimento parcial do segmento proximal da cabeça do rádio ocasionando melhor readequamento do mesmo na articulação. Sinais leves de degeneração articular estavam presentes. A OCR se mostrou efetiva neste caso, provando ser uma boa técnica a ser utilizada nos casos de LCCR quando tratamento conservativo ou técnicas de redução já não podem ser mais utilizados.

The aim of this study is to report a long term follow up of a congenital luxation of the radial head (CLRH) case of a young Bulldog treated by radio head ostectomy (RHO). CLRH is an uncommon condition in dogs, but it is the most commom form of elbow dislocation (grade I). An English Bulldog, male, 6 months, 14 kilograms, was suspected of elbow dislocation. Physical examination revealed a lateral proeminence on the lateral surface of the right elbow, as well as grade I lameness and mild pain. Range of motion was normal. Previous radiographs and tomography confirmed CLHR. RHO was chosen instead of corrective techniques, due to the age of the animal at the time of the procedure and the difficulty in repositioning the radial head in the joint. Three and a half years after surgery, new clinical and radiographic examaminations were performed. The patient had no pain, good limb support and good range of motion, allowing good elbow movement. There was a partial regrowth of the proximal segment of the radial head causing better readjustment of it in the joint. Mild signs of joint degeneration were present. RHO proved to be effective in this case, proving to be a good technique to be used in cases of CLRH when conservative treatment or reduction techniques can no longer be used.

Grisel Syndrome: Case Report

We report a case of a rare disease, Grisel syndrome, which manifests as a kind of rotational fixation of the atlas on the axis, resulting from an infectious process of the upper airways. In the present report, we discuss etiology, clinical presentation, diagnosis, treatment and outcome after intervention.

Temporomandibular joint disc displacement with reduction: a review of mechanisms and clinical presentation

Abstract Disc displacement with reduction (DDWR) is one of the most common intra-articular disorders of the temporomandibular joint (TMJ). Factors related to the etiology, progression and treatment of such condition is still a subject of discussion. This literature review aimed to address etiology, development, related factors, diagnosis, natural course, and treatment of DDWR. A non-systematic search was conducted within PubMed, Scopus, SciELO, Medline, LILACS and Science Direct using the Medical Subjective Headings (MeSH) terms "temporomandibular disorders", "temporomandibular joint", "disc displacement" and "disc displacement with reduction". No time restriction was applied. Literature reviews, systematic reviews, meta-analysis and clinical trials were included. DDWR is usually asymptomatic and requires no treatment, since the TMJ structures adapt very well and painlessly to different disc positions. Yet, long-term studies have shown the favorable progression of this condition, with no pain and/or jaw locking occurring in most of the patients.

Avaliação ortopédica e ultrassonográfica da estabilidade dos quadris de recém-nascidos encaminhados por pediatras, com suspeita de Displasia Típica do Desenvolvimento / Orthopedic and ultrasound assessment of hip stability of newborns referred by pediatricians with suspected Developmental Dysplasia

RESUMO Objetivo: avaliar recém-nascidos com suspeita de instabilidade do quadril, encaminhados por pediatras a um serviço ortopédico terciário. Métodos: recém-nascidos de uma maternidade pública universitária, com suspeita de instabilidade ou fatores de risco para displasia do quadril, eram encaminhados ao Departamento de Ortopedia e Anestesiologia, Ribeirão Preto/SP, onde eram avaliados clinicamente e através de exames ultrassonográficos dos quadris. Constatada a displasia, iniciava-se o tratamento, e em casos em que havia apenas imaturidade do quadril e exame clínico normal, procedia-se à observação e re-exame clinico e ultrassonográfico com dois ou três meses de vida. Resultados: foram examinados 448 recém-nascidos, com predominância feminina e média de idade na primeira avaliação de 27 dias. A principal causa do encaminhamento foi apresentação pélvica. Em 8% havia sinal de Ortolani positivo e em 12,5% estalido no quadril. No exame ortopédico, 405 (90,5%) pacientes eram normais, 8,5% apresentavam estalido no quadril e 1,1% apresentavam teste de Ortolani positivo. À ultrassonografia, 368 (89,5%) apresentavam imaturidade, 26 (6,3%) tinham displasia moderada e em 17 (4,1%) pacientes os quadris eram francamente displásicos. Todos os casos com sinal de Ortolani positivo apresentavam quadro ultrassonográfico de displasia. Conclusão: houve excesso de diagnóstico de instabilidade do quadril na avaliação do pediatra, o que, no entanto, permitiu ao paciente uma segunda avaliação, em ambiente mais especializado e com mais recursos tecnológicos.

ABSTRACT Objective: to evaluate newborns with suspected hip instability, referred by pediatricians to a tertiary orthopedic service. Methods: newborns from a public university maternity hospital, with suspected instability or risk factors for hip dysplasia, were referred to the Department of Orthopedics and Anesthesiology, Ribeirão Preto/SP, where we evaluated them clinically and through ultrasound examinations of the hips. Once we found dysplasia, we initiated treatment, and in cases in which there was only hip immaturity and normal clinical examination, we performed clinical and ultrasound observation and review at two or three months of age. Results: we examined 448 newborns, with female predominance and average age at first evaluation of 27 days. The main cause of referral was pelvic presentation at delivery. In 8% there was a positive Ortolani sign and in 12.5%,. At orthopedic examination, 405 (90.5%) patients were normal, 8.5% had hip click and 1.1% had positive Ortolani test. At ultrasound, 368 (89.5%) had immaturity, 26 (6.3%) had moderate dysplasia and in 17 (4.1%) patients the hips were frankly dysplastic. All cases with positive Ortolani sign showed dysplasia at ultrasound. Conclusion: there was an excess diagnosis of hip instability in the pediatrician evaluation, which, however, allowed the patient a second assessment, in a more specialized environment and with more technological resources.

Luxación convergente en codo pediátrico: Reporte de dos casos / Convergent luxation in pediatric elbow. Report of two cases

Se presentan dos casos clínicos y la revisión de la literatura actual sobre luxación convergente de codo. En el primer caso, se muestra cómo un retraso en el diagnóstico conducirá a una reducción abierta y fijación con agujas de Kirschner, mientras que un diagnóstico temprano permite la reducción cerrada y el tratamiento conservador como se describe en el segundo caso. La clave de diagnóstico para la luxación convergente de codo radica en la correcta interpretación de las radiografías y el bloque de prono-supinación en el examen físico. Se recomienda el uso de indometacina para evitar calcificaciones heterotópicas. El resultado final es mejor cuando el diagnóstico es precoz, independientemente del método de reducción. Nivel de Evidencia: IV

We describe two clinical cases and review the available literature on convergent elbow dislocation. Our first case shows how a delay in the diagnosis will lead to an open reduction and internal fixation with K-wires. On the other hand, an early diagnosis prompts a closed reduction without fixation as it is described in the second case. The diagnostic key for the convergent dislocation of the elbow lies in the correct interpretation of radiographs and the prono-supination block on physical examination. The use of indomethacin is recommended to avoid heterotopic calcifications. The final outcome is better when an early diagnosis is achieved regardless of the reduction method. Level of Evidence: IV

Luxación de la articulación interfalángica proximal del hallux con interposición de un hueso sesamoideo: una revisión bibliográfica / Dislocation of the proximal hallux interphalangeal joint with interposition of a sesamoid bone: a blibliographic review

Resumen: La luxación irreductible de la articulación interfalángica del hallux es una patología poco frecuente y hay pocos casos descritos. Se presenta como una luxación dorsal con interposición del sesamoideo; éste puede ser radiológicamente indetectable. Reportamos el caso de un paciente de 29 años que tras un traumatismo deportivo presentó una luxación interfalángica del hallux que pasó desapercibida hasta el octavo día. Al igual que en varios casos descritos en la literatura, no se pudo realizar una reducción cerrada, por lo que se procedió a una reducción abierta por una incisión dorsal. Una revisión bibliográfica revela que existen varias opciones terapéuticas, al igual que múltiples tipos de abordajes, y que estas lesiones generalmente presentan un buen pronóstico.

Abstract: The irreducible dislocation of the hallux interphalangeal joint is an infrequent condition and only a few cases have been described. It presents as dorsal dislocation with interposition of the sesamoid bone, which has the possibility of being radiologically undetectable. We present the case of a 29 year-old patient who, after a sports trauma sustained a hallux interphalangeal dislocation that went unnoticed for eight days. Since, closed reduction was not possible, as occurred in several cases reported in the literature, open reduction was performed through a dorsal incision. Based on a bibliographic review, it is possible to state that there are several treatment options and multiple approaches, and that these lesions usually have a good prognosis.

Manual reduction of articular disc after traumatic extraction of mandibular third molar: a case report

Introduction: Disc displacement without reduction with limited opening is an intracapsular biomechanical disorder involving the condyle-disc complex. With the mouth closed, the disc is in an anterior position in relation to the condylar head and does not reduce with mouth opening. This disorder is associated with persistent limited mandibular opening.Case report:The patient presented severe limitation to fully open the mouth, interfering in her ability to eat. Clinical examination also revealed maximum assisted jaw opening (passive stretch) with less than 40 mm of maximum interincisal opening. Magnetic resonance imaging was the method of choice to identify the temporomandibular disorders.Conclusion: By means of reporting this rare case of anterior disc displacement without reduction with limited opening, after traumatic extraction of a mandibular third molar, in which manual reduction of temporomandibular joint articular disc was performed, it was possible to prove that this technique is effective in the prompt restoration of mandibular movements.

Introdução: o deslocamento do disco articular sem redução com abertura limitada é uma desordem intracapsular que envolve o complexo côndilo-disco. Na posição de boca fechada, o disco articular se encontra numa posição anterior em relação à cabeça da mandíbula e não sofre redução com a abertura de boca. Essa desordem está associada à abertura mandibular limitada e persistente.Caso clínico:o paciente relatava travamento da mandíbula que não permitia uma abertura completa da boca, interferindo, assim, na capacidade de se alimentar. Também era possível observar-se uma abertura assistida (alongamento passivo) com uma distância vertical menor que 40 mm entre os incisivos. A ressonância magnética foi o método de escolha para o diagnóstico das desordens temporomandibulares.Conclusão:por meio da descrição de um caso raro de deslocamento anterior do disco articular sem redução e com abertura limitada, após exodontia traumática do terceiro molar inferior, em que foi realizada a redução manual do disco articular da articulação temporomandibular, provou-se ser essa uma técnica eficaz no rápido restabelecimento dos movimentos mandibulares.

Luxación aislada del escafoides / Isolated dislocation of the scaphoid

El funcionamiento armónico de la mano desempeña un papel fundamental para el desarrollo de la vida del hombre. En la sociedad moderna las lesiones a este nivel, a pesar de su baja incidencia, son causa frecuente de discapacidad funcional. Se presenta un paciente de piel blanca, masculino, de 38 años, atendido tras un trauma de alta energía con hiperflexión forzada de la muñeca secundaria al mismo. Se diagnosticó una luxación aislada del escafoides que se reduce bajo anestesia con ayuda del intensificador de imágenes. Se inmoviliza con férula braquial, tomando primer dedo, por seis semanas y posteriormente comienza proceso de rehabilitación. El tratamiento oportuno y adecuado de la patología mencionada es indispensable para obtener los mejores resultados, en la recuperación funcional.

The smooth functioning of the hand plays a key role for the development of human life. In modern society, injuries at this level, despite their low incidence, are a frequent cause of disability. A white male patient, aged 38 is presented here. He was assisted after a high-energy trauma, forced high wrist hyperflexion. An isolated dislocation of the scaphoid was diagnosed, which is reduced under anesthesia using the image intensifier. It is immobilized with brachial splint, taking first finger for six weeks and then rehabilitation process. Timely and adequate treatment of this disease is essential to get the best results in functional recovery.

Reporte de caso y revisión de la literatura: luxofractura de codo en niños / Case report and literature review: elbow fracture dislocation in children

La luxación de codo en niños es un evento traumático muy poco frecuente descrito por primera vez por Stimson en 1900 y por Tachdjian en 1990, con una incidencia estimada que va de 3 a 6% de todas las lesiones en codo, con un pico de incidencia entre los 13 y 14 años, el trauma de codo se clasifica basándose en la dirección que toma el desplazamiento de la articulación radio ulnar proximal con el húmero, dividiéndolas en luxaciones posteriores y anteriores, siendo la primera más frecuente, ocurriendo en 95% de los casos, por otra parte las luxofracturas del codo son eventos aún más raros presentándose fractura por avulsión del epicóndilo medial con una incidencia de 25 a 36%; cóndilo lateral 4%, olécranon 1.7%, cabeza radial 8%, apófisis coronoides 3.5%, y otras 3.5%, hasta el momento no existe en la literatura un consenso sobre cómo manejar este tipo de lesiones, en especial porque hay autores que respaldan el manejo no quirúrgico, y otros que proponen el manejo quirúrgico como método definitivo; sin embargo, lo que sí se tiene claro es que un diagnóstico tardío o un manejo inoportuno puede repercutir en el crecimiento del niño llevando a serias complicaciones, de esta manera con el presente estudio pretendemos dar a reconocer nuestra experiencia en el manejo quirúrgico de estos casos tan poco frecuentes obteniendo buenos resultados.

Elbow dislocation in children is a very infrequent traumatic event which was first described by Stimson in 1900 and then by Tachdjian in 1990. Its estimated incidence ranges from 3% to 6% of all elbow injuries, peaking at 13-14 years. Elbow trauma is classified considering the direction in which the proximal radioulnar joint shifts with respect to the humerus, into posterior and anterior dislocation. The former is the most frequent and accounts for 95% of cases. Elbow fracture dislocation is an even rarer event. The incidence rate of avulsion fracture of the medial epicondyle is 25-36%, of the lateral condyle 4%, of the olecranon 1.7%, of the radial head 8%, of the coronoid process 3.5%, and others, 3.5%. At present there is no consensus in the literature on how to treat this type of lesions, particularly because some authors advocate nonsurgical management, while others propose surgical management as the definitive treatment. What is clear, however, is that a late diagnosis or untimely treatment may affect the child's growth and lead to serious complications. The purpose of this study is to share our experience and good results with the surgical management of these infrequent cases.

Traumatic atlantoaxial rotatory subluxation in adults: report of two cases and literature review / Subluxación atlantoaxial rotatoria traumática en adultos: reporte de dos casos y revisión de la literatura

Atlantoaxial subluxation is defined as an instability of the atlas (C1) over the axis (C2), due to failure or rupture of the ligament complex in the C1-C2 joint. It occurs most frequently in childhood, due to atlantoaxial ligament laxity, a common condition at this age group and may have traumatic or nontraumatic causes. The clinical features of this entity are the presence of upper cervical pain, limitation of neck mobility, torticollis and muscle spasm. The treatment of rotatory subluxation should be individualized because there is no evidence in the literature showing the superiority of a particular therapeutic proposal. In this study we describe two cases of atlantoaxial subluxation of traumatic origin in adults and review the literature regarding the main aspects of this entity.

Subluxación atlantoaxial se define a una inestabilidad del atlas (C1) sobre el axis (C2), debido a un fallo o rotura del complejo del ligamento de la articulación C1-C2. Es más frecuente en la infancia, debido a la laxitud del ligamento atlantoaxial, una condición común en este grupo de edad y puede tener causas traumáticas o no traumáticas. Las características clínicas de esta entidad son la presencia de dolor cervical superior, limitación de la movilidad del cuello, tortícolis y los espasmos musculares. El tratamiento de la subluxación rotatoria debe ser individualizado en porque no hay una evidencia en la literatura que muestra la superioridad de una propuesta terapéutica en particular. En este estudio se describen dos casos de subluxación atlantoaxial de origen traumático en adultos y se hace una revisión de la literatura respecto a los principales aspectos de esta entidad.

Multiple carpometacarpal volar dislocation

A case of multiple Carpometacarpal joints volar dislocation in a young man of 25 years of age is reported. He presented with pain and deformity of his left hand immediately after road traffic accident. He was unable to move his left hand. X-rays of the affected hand showed volar dislocation of all four medial Carpometacarpal joints. Dislocated joints were reduced, fixed with K-wires and immobilized in slab. K-wires were removed after 8 weeks. Hand function is satisfactory on the follow-up

Anterior disc displacement and the superior head of lateral pterygoid muscle: a case-control study / Desplazamiento discal anterior y la cabeza superior del músculo pterigoideo lateral: un estudio caso-control

The objective of this study was to assess the association between an increase in the proportion of the superior head of the lateral pterygoid muscle (SHLP) inserted into the temporomandibular joint (TMJ) disc and the presence of anterior disc displacement diagnosed by using MRI. We analyzed 75 images of patients with anterior displacement and 75 controls with normal relationship between the mandibular head and the articular tubercle also diagnosed by MRI. Levels of insertion were measured. Descriptive and analytic statistics were calculated. Analyses of differences were made by Fischer's exact test and also were calculated clinical significance (OR, CI = 95 percent). The average insertion of SHLP was 71.14 percent (SD 14.13) in controls and 67.80 percent (SD.16.23) in cases group. The only relationship that presented a significant association (OR 5.61) was found when comparing subjects with a percentage of inserting the disc into the SHLP at 50 percent with those who had higher levels of insertion (50 percent). Our results suggest that the highest percentage of insertion serves as a protective factor for anterior disc displacement, probably due to greater control of neuromuscular activity.

El objetivo de este estudio fue evaluar la asociación entre el aumento de la proporción de la cabeza superior del músculo pterigoideo lateral (CSPT) insertado en la articulación temporomandibular (ATM) y la presencia de desplazamiento discal anterior diagnosticado mediante resonancia magnética. Se analizaron 75 imágenes de pacientes con desplazamiento discal anterior y 75 controles con una relación normal entre la cabeza de la mandíbula y el tubérculo articular, también diagnosticada por resonancia magnética. Los niveles de inserción fueron medidos. La estadística descriptiva y analítica fueron calculadas. Los análisis de las diferencias se hicieron por la prueba exacta de Fischer, y también se calculó la significancia clínica (OR, IC=95 por ciento). La inserción media de la CSPT fue 71,14 por ciento (DS 14,13) en los controles y 67,80 por ciento (SD 16,23) en los casos de grupo. La única relación que presentó una asociación significativa (OR 5,61) se encontró al comparar los sujetos con un porcentaje de inserción en la CSPT 50 por ciento con aquellos que tenían niveles más altos de inserción (50 por ciento). Nuestros resultados sugieren que el mayor porcentaje de inserción sirve como un factor de protección para el desplazamiento discal anterior, probablemente debido a un mayor control de la actividad neuromuscular.

Luxación subtalar medial: reporte de un caso clínico / Medial subtalar dislocation

Subtalar dislocation is the simultaneous dislocation of the distal articulations of the talus, of the level the talocalcaneal and talonavicular joints. They can happen in any direction and they produce deformity in the foot. Most common is the medial dislocation. Less common are lateral, anterior and posterior dislocations. These dislocations are associated with osteochondral fractures. Closed reduction and immobilization continue being the pillars of the treatment. The x- Rays and CT scan of the ankle and affected foot confirms the post-reduction stability of subtalar joints and exclude fracture. The RNM is a good alternative to evaluate avascular necrosis at level of the talus in the follow of these patients. The case of a medial subtalar dislocation is presented in a 20 year-old patient. Together with the revision of the literature, the diagnostic methods and the carried out treatment are exhibited, as well as their clinical results and imagens.

La luxación subtalar es una luxación simultánea de las articulaciones del talus, a nivel talocalcáneo y talonavicular. Pueden ocurrir en cualquier dirección y producen deformidad en el pie. La más común es la luxación medial. Menos comunes son la luxación lateral, anterior y posterior. Estas luxaciones están asociadas a fracturas osteocondrales. La reducción cerrada y la inmovilización siguen siendo los pilares del tratamiento. Las radiografías y el TAC del tobillo y pie afectados confirman la congruencia de la articulación subtalar post reducción y descartan fracturas. La RNM es una buena alternativa para evaluar necrosis vascular a nivel del talus en el seguimiento de estos pacientes. Se presenta el caso de una luxación subtalar medial en un paciente de 20 años. Junto con la revisión de la literatura, se exhiben los métodos diagnósticos y el tratamiento realizado, así como sus resultados clínicos e imagenológicos.

Closed posteromedial dislocation of the ankle without fracture: a case report.

Ankle dislocation without fracture is an extremely rare injury. Open dislocations were more common in the previous reports. The authors report a case of closed posteromedial dislocation of the ankle in a 24-year-old basketball player. Closed reduction was performed. The ankle was initially immobilized with the short leg cast before using the functional brace. Details of the rehabilitation program were described. Follow up examination at one-year demonstrated good clinical and functional results confirmed with the inversion stress radiographs. The patient can participate in sports activities at the same level as pre-injury.

Ectrodactilia em cão: relato de caso / Ectrodactyly in dog: case report

Descreve-se um caso de ectrodactilia em um cão, sem raça definida e dois meses de idade. No exame clínico e radiográfico, foi verificada a separação óssea e de tecidos moles entre o segundo e o terceiro dígitos, estendendo-se proximalmente até a região distal do rádio e da ulna, e luxação do cotovelo ipsilateral. O animal foi submetido a procedimento cirúrgico para redução da luxação do cotovelo e reaproximação óssea e dos tecidos moles. Após 16 meses da cirurgia, o animal apresentava uso parcial do membro

A case of ectrodactyly is described in a 2-month-old male mixed Terrier dog. The defect was a complete osseous and soft tissue separation extending from between digits 2 and 3 proximally to the level of the radius and ulna. Radiography revealed elbow luxation. Treatment consisted of surgical reduction of elbow luxation and soft tissue reconstruction. Sixteen months after surgery, the dog was intermittent nonweight-bearing lameness

[Medial subtalar dislocation in 17 year-old male. A case report]

Subtalar dislocation is the simultaneous dislocation of the distal articulations of the talus at both the talocalcaneal and talonavicular joints. It can occur in any direction and always produce significant deformity. Most common is the medial dislocation [80% of cases]. Less common presentations are lateral [20% of cases], anterior and posterior dislocations. These dislocations are associated with osteochondral fractures. Closed reduction and immobilization remains the mainstay of treatment. Proper radiographs and CT scan confirms the post reduction alignment stability of subtalar joints and intraarticular fracture fragments. We report a case of medial subtalar dislocation with no osteochondral fracture fragments in a 17-year-old young man

Correlation of clinical and MRI findings of tempero-mandibular joint internal derangement.

The most common clinical features of tempero-mandibular joint internal derangement are correlated with the MRI findings of shape of the disc in an attempt to find the etiology of tempero-mandibular joint internal derangement. In this study, the clinical parameters of pain, muscle tenderness, clicking with in the joint (like early, middle and late) are correlated with the MRI findings of disc shapes. (like biconcave, thick, lengthened, folded, adhesion). The study reveals any trauma that leads to muscle tenderness results in internal derangement of tempero-mandibular joint.

Dynamic magnetic resonance imaging in cases of patello-femoral joint mal-tracking

Patello-femoral disorders commonly cause anterior knee pain and giving way. Axial X-rays will only reveal mal-alignment but not mal-tracking. In a group of 32 patients 54 knees were studied by dynamic MRI. Group A which presented with recurrent subluxation or dislocation showed more moderate and severe tilt and subluxation, than group B that presented with anterior knee pain. Dynamic MRI gives us a new perspective for dynamic study of the patello-femoral joint

Assessment of disk displacements of the temporomandibular joint

Nesta pesquisa, o objetivo foi avaliar os deslocamentos de disco (DDs) da articulação temporomandibular (ATM) de pacientes indicados para ressonância magnética (RM), no que concerne ao tipo e à prevalência do DD, distribuição por sexo, faixa etária e lado, a estalidos articulares (EAs), dor, amplitude do movimento de abertura da boca e condição da dentição. A amostra constou de 113 pacientes, na faixa etária de 12 a 78 anos (média de 36,4 ± 13,5 anos), 92 do gênero feminino e 21 do gênero masculino, examinados no período de julho de 2001 a dezembro de 2002. Os exames foram procedidos em equipamento modelo Signa Horizon (GE), magnitude do campo magnético de 1,5 T, com bobina bilateral de superfície de 6,5 x 6,5 cm. Vinte e três (20,4%) pacientes apresentaram condição de normalidade, enquanto 90 (79,7%) apresentaram-se acometidos por DDs, sendo que DD anterior (61,1%) foi o mais prevalente. Indivíduos do gênero feminino e do gênero masculino foram igualmente afetados pela condição (diferença estatística não significante). Não observamos associação estatisticamente significante entre DD e elevação da faixa etária. A ocorrência bilateral de DD (70%), em relação à ocorrência unilateral, foi mais prevalente. Observamos associação estatisticamente significante entre DD anterior com redução e EA. Não observamos associação estatisticamente significante entre DD e dor, seja articular, facial, otalgia ou cefaléia. Observamos associação estatisticamente significante entre DD anterior sem redução e limitação de abertura de boca. Não observamos associação estatisticamente significante entre DD e perda de dentes.