– Femoral Exposure: – femur is exposed by placing a medium Homan retractor under femoral neck & 2nd under quad. femoris & levering down on fascia lata; – leg is held in adduction, flexion and internal rotation such that tibia is vertical; – remove any remaining … Read more
– See: – Bone Tumor Menu: – Eosinophilic Granuloma of Spine: – Discussion: – includes a group of disorders characterized by a variety of tumor like lesions, which arise from from clonal proliferation of Langerhans- type histiocytes; – most common in children less than 12 … Read more
– See: – Limb Development – Longitudinal Growth: – Pediatric Bone Circulation – Salter Harris – Epiphyseal Physis: – Discussion: – cartilage model includes three elements, – articular cartilage: – formation of articular cartilage depends on: – interzone formation – resorption of the interzone – intersitial growth of the articular cartilage and underlying epiphyseal cartilage … Read more
PreOp Prepartion – Drill and Screw Sizes: – 6.0/5.0 mm cortical screws require 4.8 mm drill (110 mm long and 30-50 mm thread); – 6.0/5.0 mm cancellous screws require 3.2 mm drill (100-130 length, 40-60 mm thread); – 4.5/3.5 mm cortical screws require 3.2 mm drill; (80-100 length, 30-40 mm thread); … Read more
div class=”mh-row clearfix”> h1>/h1> div class=”bodycopy”>hr size=”3″/> – See strong>a href=”/joints/hip/total-hip-arthroplasty/”>Total Hip Replacement Menu:/a>/strong> br/> br/> strong>- Discussion:/strong> (strong>a href=”/ortho/deep_venous_thrombosis”>general discussion of DVT/a>/strong>) br/> – 40-60% of THR patients who do not receive prophylaxis will get a DVT (dependment on imaging method); br/> – ref: Significance of deep … Read more
– Discussion: – is the newest and the most precise technique for evaluating osteoporosis, and has emerged as the successor to DPA; – anatomic sites for DXA measurement include: – lumbar spine, proximal femur, forearm and calcaneus; – advantages of an x-ray system over a DPA radionuclide system include: – shortened examination time … Read more
– Discussion: – generally distal interlocks should be inserted prior to the proximal interlocks; – this allows the leg to be rotated in the most advantageous position for interlock insertion and allows more effecient compression across the frx site (by gently tapping the proximal nail assembly proximally); – … Read more
– See: – Growth Deformities of Limbs – Growth Plate Arrest – Discussion: – anatomy of distal femoral physis: – account for approx 5% of all physeal frx; – displacement in sagittal plane is assoc w/ N/V injury in popliteal fossa and instability on closed reduction; – … Read more
– See: – Femoral and Tibial Traction Pins – Supracondylar Femoral Fractures – Discussion: – failure of the nail to fill the canal of either the proximal or distal fragment, may lead to postoperative instability; – distal fractures within 10 cm of the joint line often can be treated successfully with standard IM nailing; – Traction Pins: … Read more
– Discussion: – tight distal fit techniques achieve toggle control of stem in medullary canal; – tight distal fit is correlated w/ lower prevalence of thigh pain; – torsional stress is transferred thru proximal fixation in specimens w/ both proximal and distal fixation despite the fact … Read more