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STUDY DESIGN A description of the internal architecture of the sacrum, including its trabecular arrangement, cortical thickness, and overall bone density. OBJECTIVES To determine the strong and weak areas in the sacrum to understand more clearly the sacral structure and its clinical implications. METHODS First, seven cadaveric sacral specimens were(More)
AIMS Alveolar soft part sarcoma is a distinct, rare soft tissue tumour occurring primarily within the skeletal muscles or musculofascial planes in young adults. Primary involvement of bone is extremely rare. We report on six patients with alveolar soft part sarcoma occurring primarily in bone. METHODS AND RESULTS Thorough clinical and radiographic(More)
While performing the anterior approach to the cervical vertebral bodies, injury to important anatomic structures in the vicinity of the dissection represents a serious risk. The midportion of the recurrent laryngeal nerve and the external branch of the superior laryngeal nerve are encountered in the anterior approach to the lower cervical spine. The(More)
A fracture of the posterior process of the talus is rare. In this report, we present a case of isolated displaced fracture of the posterior process of the talus, which was treated by early open reduction and internal fixation through a posteromedial approach. The fracture healed without evidence of avascular necrosis of either the posterior fragment or the(More)
The internal architecture of the talus has not previously been well described even though the morphological anatomy and the blood supply have been studied extensively. This study describes the internal architecture of the talus regarding its trabecular orientation, using high-resolution x-ray images of 13 dry tali and thick sections in the coronal,(More)
This study examined the safe zone for placement of occipital screws without endangering the sinuses. In the first part of the study, 10 cadaveric skulls were exposed. The borders of the confluences and the transverse sinuses were located on the outer table of the occiput. In the second part of the study, six cadaveric skulls were used and screws were placed(More)
Hypertension (HTN) and heart failure (HF) have a significant global impact on health, and lead to increased morbidity and mortality. Despite recent advances in pharmacologic and device therapy for these conditions, there is a need for additional treatment modalities. Patients with sub-optimally treated HTN have increased risk for stroke, renal failure and(More)
This study evaluated the significance of computed tomographic (CT) measurements of the upper cervical vertebrae and their clinical implications in transarticular C1-C2 screw placement. In the first part of the study, analysis of axial CT scans of the atlas of 46 patients who had a normal C1-C2 region was performed. Measurements included the vertical(More)
A visual three-dimensional image of the first sacral vertebra was constructed using computer software to predict the sites of strong density for better screw purchase of upper sacrum. Forty dry sacrum specimens were scanned in the prone position. An axial section, 10 mm below the S1 end plate, was selected for determining density at the region of interest.(More)
Twelve cadaver feet were used for a radiographic assessment of the talonavicular joint. A 4.0- or a 6.5-mm screw was inserted through the posterior tubercle of the talus, directed anteriorly into four quadrants of the talar head. Lateral, dorsoplantar, lateral oblique, and medial oblique radiographic views were obtained for each specimen, to assess the(More)