Acute Bilateral Dislocation of the Temporomandibular Joint With Left Old Zygomaticomaxillary Complex Fracture Treated With Coronoidectomy Authors.

The majority of various types of temporomandibular joint dislocation can be easily reduced to normal position through nontraumatic procedures. We present a rare case of temporomandibular joint dislocation with a left old zygomaticomaxoid complex fracture in a 48-year-old hemiplegic male. Due to the lock-in state of dislocated coronoid process and deformed zygomaticomaxoid complex, this type of dislocation combined with an old fracture is rare and difficult to reduce with conservative therapy. Therefore, coronoidectomy was performed to release the lock and reduce the condylar.

Three-Dimensional Printed Titanium Prosthesis for Mandibular Condyle Reconstruction After Extensive Resection of Chondrosarcoma: A 6-year Follow-Up.

Chondrosarcomas (CHS) are malignant mesenchymal tumors arising from cartilage. Chondrosarcomas arising in the temporomandibular joint are especially rare. Herein, the authors report an unusual case of a 50-year-old female who presented with a progressive swelling in the left preauricular region. Computed tomography and magnetic resonance imaging revealed an osteolytic and expansive lesion in the left condyle. The diagnosis tended to be a malignant tumor. A resection guide and 3-dimensional printed titanium prosthesis for condyle reconstruction were designed. Extended resection of the left condyle and reconstruction were performed. The pathologic diagnosis was consistent with CHS (grade II). There was no tumor recurrence or distant metastasis at the 6-year follow-up, and good occlusion and satisfactory function of the temporomandibular joint were regained.