An exchange technique in temporomandibular joint (TMJ) arthroscopy to insert a larger operative cannula to facilitate advanced procedures.

The paper describes a modification of the surgical technique for temporomandibular joint arthroscopy, using an exchange guide to replace the 2.2 mm cannula with one of 2.9 mm to better facilitate osteoplasty of the medial wall. The procedure is a simple and safe manoeuvre that reduces complications such as fluid extravasation into soft tissues, damage to the articular eminence, and bleeding into the superior joint space. Every oral and maxillofacial surgeon could benefit from this novel method, which reduces the chances of failure when exchanging the working cannulas, the potential morbidity of re-entry, and the duration of surgery.

Controversies in the treatment of early-stage oral squamous cell carcinoma.

The treatment of early-stage oral squamous cell carcinoma (OSCC) is still a controversial issue. Thanks to the 8th edition of TNM by AJCC there is a better distinction between the stages of OSCC. However, Stages I and II still share the same treatment protocol, even if the prognosis is radically different. A retrospective study has been conducted including 70 previously untreated patients with Stage I or II OSCC, treated with tumorectomy and selective neck dissection. The study focuses on the link between pT1/2 and various other factors, particularly histological grading, vascular and perineural invasion, local and cervical recurrence, surgical margins and overall survival. These data reveal significant differences between pT1 and pT2 in histological grade, perineural invasion, cervical recurrence, surgical margins, and overall survival, emphasizing the necessity of different treatment protocols for T1 and T2 OSCC. Distinct strategies should be proposed to treat Stage I and II OSCC, with Stage II patients possibly benefitting from more aggressive treatments: following these data, a wait-and-see strategy should only be considered in Stage I, while certain treatments at the cervical level - such as prophylactic neck dissection and sentinel node biopsy - should always be considered for Stage II tumors.

Mandibular condyle dislocation into the middle cranial fossa with open reduction and reconstruction with glenoid fossa prosthesis. Unusual case report and literature review / Dislocación de cóndilo mandibular a fosa media craneal con reducción abierta y reconstrucción mediante prótesis de fosa glenoidea. Reporte de caso inusual y revisión de literatura

The dislocation of the mandibular condyle into the middle cranial fossa (DMCCF) is a very infrequent lesion resulting from facial trauma. There is not consensus in which is the best way to treat this fractures, but the reduction of these impaction in the cranial middle fossa could be open or closed depending on the type of fracture and the experience of the surgeons. A case report of a 17 years old female with right condyle dislocation into the middle cranial fossa is presented, treated with open reduction and reconstruction with glenoid fossa prosthesis. (AU)

La luxación del cóndilo mandibular hacia la fosa craneal media (DMCCF) es una lesión muy poco frecuente secundaria a un traumatismo facial. No existe consenso sobre cuál es la mejor forma de tratar estas fracturas, pero la reducción de estas impactaciones en la fosa media craneal puede ser abierta o cerrada dependiendo del tipo de fractura y la experiencia de los cirujanos. Se presenta el caso de una mujer de 17 años con luxación de cóndilo derecho a fosa craneal media, tratada con reducción abierta y reconstrucción con prótesis de fosa glenoidea. (AU)

Impact of histological tumor grade on the behavior and prognosis of squamous cell carcinoma of the oral cavity.

INTRODUCTION: Unlike other types of cancers, the prognostic value of histological tumor grade is not well determined for oral squamous cell carcinoma (OSCC). This study therefore aimed to evaluate the impact of tumor differentiation on prognosis and overall survival of patients affected by squamous cell carcinoma of the oral cavity. MATERIALS AND METHOD: A retrospective analysis was conducted using the records of patients diagnosed with squamous cell carcinoma of the oral cavity between 2010 and 2015. The study included 162 patients treated with a tumorectomy and selective neck dissection. The influence of histological tumor grade on several prognostic factors such as T-Stage, N-stage, recurrence rate, perineural invasion, vascular invasion, surgical margins, and overall survival was analyzed. RESULTS: Histological grade strongly correlated with N-stage, recurrence rate, perineural invasion, vascular invasion, surgical margins, and overall survival. Overall survival was 71.6% in patients with well-differentiated tumors and 43.2% in those with moderately and poorly differentiated tumors. CONCLUSIONS: Histological grade represents an important prognostic factor for OSCC. Therefore, various treatment strategies based on this histological parameter could improve the overall survival rate of patients affected by oral squamous cell carcinoma.

Amiloidosis nodular lingual aislada / Isolated lingual nodular amyloidosis

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