desmoplastic fibroma (df) is a rare and locally aggressive intraosseous tumor with unknown etiology. the mandible is the common site of involvement in the maxillofacial region. however, it is believed that df can arise in any bone of the body. a wide age distribution has been reported for df occurrence, extending from birth to the sixth decade of life, with a peak incidence at 10 to 19 years of...

Large glenoid fractures are relatively uncommon with shoulder dislocation. Simultaneous glenoid and greater tuberosity fractures with anterior shoulder dislocation are very rare. We report on a 48-year right-handed male who sustained a fall during skiing. He had anterior shoulder dislocation combined with large glenoid fracture and greater tuberosity fracture. He was treated surgically with fix...

For anterior instability with glenoid bone loss comprising 25% or more of the inferior glenoid diameter (inverted-pear glenoid), the consensus of recent authors is that glenoid bone grafting should be performed. Although the engaging Hill-Sachs lesion has been recognized as a risk factor for recurrent anterior instability, there has been no generally accepted method for quantifying the Hill-Sac...

BACKGROUND Although increased retroversion of the glenoid has been shown to be an important factor in posterior instability of the shoulder, there are few studies reporting glenoid bone structure as a risk factor in anterior dislocation of the shoulder. This study aimed to compare glenoid version in patients with anterior dislocation of the shoulder and individuals in a control group with no sh...

Background: In shoulders requiring arthroplasty, the extant glenoid may provide insufficient intrinsic stability for the humeral head – for example if the glenoid is flat or biconcave. In such cases the surgeon can restore the desired intrinsic stability using a glenoid prosthesis with a known surface geometry. Alternatively, the surgeon can modify the surface of the glenoid to a geometry that ...

BACKGROUND The optimal treatment of Hill-Sachs injuries is difficult to determine and is potentiated by the finding that a Hill-Sachs injury becomes more important in the setting of glenoid bone loss, making engagement of the humeral head on the glenoid inherently easier. The "glenoid track" concept was developed to biomechanically quantify the effects of a combined glenoid and humeral head bon...

clusions often requires intrusion and retraction of the anterior segment, which, in turn, usually necessitate mechanical reinforcement of posterior anchorage.1 Intraoral devices such as transpalatal bars or Nance appliances2 can reduce the need to wear Class II elastics, but can cause mesial movement of the lower first molars and protrusion of the incisors. Additional extraoral anchorage in the...

The Maintenance of Certification module series is designed to help the clinician structure his or her study in specific areas appropriate to his or her clinical practice. This article is prepared to accompany practice-based assessment of preoperative assessment, anesthesia, surgical treatment plan, perioperative management, and outcomes. In this format, the clinician is invited to compare his o...