The main cause of decreased mouth opening in patients suffered from trauma is bony or fibrous ankylosis of temporomandibular joint, but other causes such as fibrous or bony union of zygoma and / or maxilla to the coronoid process of the mandible must be considered in preoperative management of such cases. Bony union of the mandible to the maxilla and zygoma is rare. In this report, one case,...

Congenital fusion of the maxilla and the mandible is a rare condition. The extent of the problem ranges from simple mucosal adhesion (synechia) to severe bony fusion (syngnathia). Here we present a patient with zygomatico-mandibular fusion who was treated at neonatal and infancy periods at three different stages without tracheostomy. Having had recurrence for two times, porcine grafting was per...

congenital fusion of the maxilla and the mandible is a rare condition. the extent of the problem ranges from simple mucosal adhesion (synechia) to severe bony fusion (syngnathia). here we present a patient with zygomatico-mandibular fusion who was treated at neonatal and infancy periods at three different stages without tracheostomy. having had recurrence for two times, porcine grafting was per...

Study Design Retrospective study. Objectives To analyze lamina hinge fusion failure after plate-only open-door laminoplasty. Methods Thirty-one patients who underwent plate-only open-door laminoplasty (110 levels) for cervical myelopathy and who had serial computed tomography (CT) scans at 6 and 12 months were analyzed. Risk factors for fusion failure at 12 months were analyzed, including age, ...

Arthrodesis is usually performed with joint resection or at least with removal of cartilage. Our recent experience with successful fusion in all 11 rheumatoid ankles treated only with percutaneous fixation questions the necessity of debridement of the joint before arthrodesis. In this rabbit study we tested the hypothesis that joints fuse because of rigid fixation. 9 skeletally mature loop-ear ...

STUDY DESIGN An experimental pilot study using an acrylic interbody cage in a dog cervical spine fusion model. OBJECTIVE To compare bony fusion in autologous bone grafting with a novel acrylic cage in terms of preservation of disc height, biomechanical properties, and histologic characteristics. SUMMARY OF BACKGROUND DATA Degenerative diseases of cervical intervertebral discs are commonly t...

STUDY DESIGN: An experimental pilot study using an acrylic interbody cage in a dog cervical spine fusion model. OBJECTIVE: To compare bony fusion in autologous bone grafting with a novel acrylic cage in terms of preservation of disc height, biomechanical properties, and histologic characteristics. SUMMARY OF BACKGROUND DATA: Degenerative diseases of cervical intervertebral discs are commonly tr...