Instructional course lectures
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Lumbar spinal stenosis associated with adult scoliosis is being increasingly recognized and studied. Degenerative changes leading to spinal stenosis can precede a spinal deformity resulting in de novo scoliosis. Conversely, degenerative changes leading to spinal stenosis can occur in a preexisting deformity. ⋯ The optimal surgical procedure depends on a careful evaluation of involved segments and patient comorbidities. Positive sagittal imbalance is associated with significant morbidity and should be corrected when feasible. Data that continue to be collected in this patient population will guide future efforts in treating this complicated disease.
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Periprosthetic fracture with preexisting severe loss of bone stock is a challenging condition to treat. Available surgical options can be divided into three categories: complex reconstruction of the deficient proximal femur with secure distal fixation; segmental substitution of the proximal femur with a megaprosthesis or allograft/stem composite; and distally fixed replacement with a modular stem, which acts as a scaffold around which the remaining deficient proximal bone can be assembled, to unite and possibly reconstitute.
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The need for surgical treatment of femoral shaft and distal femoral fractures is undisputed. The treatment options are varied, and often the choice is based on the surgeon's preference rather than orthopaedic science. ⋯ The primary goal of treatment for a supracondylar femoral fracture is to restore limb alignment while preventing angular deformity. Proper technique, not the choice of a nail or plate, is key to recovery.
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Surgical management of a thoracolumbar fracture varies according to many factors. Fracture morphology, neurologic status, and surgeon preference play major roles in deciding on an anterior, a posterior, or a combined approach. ⋯ Unstable burst fractures can be treated with anterior-only fixation using a strut graft and a modern thoracolumbar plating system or with a posterior-only construct using pedicle screws and possibly hooks. A circumferential construct is considered for extremely unstable injuries.
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Adequate control of postoperative pain following hip and knee arthroplasty can be a challenging task fraught with potential complications. Postoperative pain is perceived by the patient via a complex network and a multitude of molecular messengers in both the peripheral and central nervous systems. ⋯ Using both contemporary and traditional pain modulators, the delivery and timing of these medications can affect postoperative pain and, ultimately, rehabilitation of the arthroplasty patient. Current techniques for controlling pain use both multimodal and preemptive analgesia to improve the outcome of the surgery while minimizing the potential adverse effects of the medications given.