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- Hearing changes after temporomandibular joint arthroscopy: a prospective studyPublication . DF, AngeloTemporomandibular Joint (TMJ) arthroscopy is considered an effective and safe minimally invasive surgical approach. While the long-term outcomes of arthroscopy tend to be positive and free of secondary effects, patients occasionally complain about their hearing following the treatment. The aim of this prospective study was to investigate possible hearing changes associated with TMJ arthroscopy. Pure-tone audiograms were performed in patients two weeks before TMJ arthroscopy and repeated six weeks after intervention. A total of 15 patients (mean age of 41.73 +- 16.36) were enrolled; 25 TMJ arthroscopies were performed (five unilateral and ten bilateral). Statistically significant differences were found between preoperative and postoperative audiograms in the frequencies 256 Hz (P = 0.011) and 8 kHz (P = 0.058, borderline). For the frequency 256 Hz the difference was favourable, but not superior to 5 dB. For the frequency 8 kHz, in three patients the TMJ arthroscopy resulted in a decrease of 10 dB. However, no clinical hearing changes or complaints were observed in the involved patients. No differences in audiograms between level 1 or 2 arthroscopy were observed. The study reinforces the safety of the TMJ arthroscopy level 1 and 2 with the reported protocol. The authors recommend larger studies to validate the results, specially for frequency 8 kHz
- Comment on: a modified technique of temporomandibular joint arthroscopic operative surgery of the superior and Inferior joint spacesPublication . DF, Angelo; González-García, Raúl; Monje, F
- Synovial entrapment in alloplastic temporomandibular joint replacementPublication . DF, AngeloComplications of alloplastic temporomandibular joint (TMJ) prostheses can lead to stress and anxiety for the patient and the surgical team, and prosthesis substitution is sometimes required. The aim of this case report is to describe the surgical finding of synovial entrapment with interposed fibrosis in a postoperative alloplastic TMJ revision, managed effectively with adequate surgical debridement. The authors believe that synovial entrapment needs to be considered as a possible postoperative complication of total joint replacement when no clear symptoms of infection, metal hypersensitivity, osteolysis, or heterotopic bone formation are present. The implications of synovial entrapment in TMJ alloplastic replacement remains relatively unpredictable and poorly understood.
- Biological treatments for temporomandibular joint disc disorders: strategies in tissue engineeringPublication . Trindade, Daniela; Cordeiro, Rachel; Cardoso, Henrique José; DF, Angelo; Alves, Nuno; Moura, CarlaThe temporomandibular joint (TMJ) is an important structure for the masticatory systemand the pathologies associated with it affect a large part of the population and impair people’slifestyle. It comprises an articular disc, that presents low regeneration capacities and the existingclinical options for repairing it are not effective. This way, it is imperative to achieve a permanentsolution to guarantee a good quality of life for people who suffer from these pathologies. Completeknowledge of the unique characteristics of the disc will make it easier to achieve a successful tissueengineering (TE) construct. Thus, the search for an effective, safe and lasting solution has alreadystarted, including materials that replace the disc, is currently growing. The search for a solutionbased on TE approaches, which involve regenerating the disc. The present work revises the TMJ disccharacteristics and its associated diseases. The different materials used for a total disc replacementare presented, highlighting the TE area. A special focus on future trends in the field and part of thesolution for the TMJ problems described in this review will involve the development of a promisingengineered disc approach through the use of decellularized extracellular matrices.