Instructional course lectures
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Although total hip arthroplasty has been shown to be an effective surgical procedure, long-term outcomes are compromised by wear of the bearing surfaces. Recent technologic advances have been made in the design of bearing surfaces that offer extended performance to these artificial joints.
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A concussion is defined as a complex pathophysiologic process affecting the brain that is induced by traumatic biomechanical forces. Concussions are caused by a direct or indirect blow that leads to a graded set of syndromes characterized by functional rather than structural disturbances to the brain. Concussions are characterized by a wide variety of presenting symptoms, including loss of consciousness, amnesia, confusion, headache, and nausea. ⋯ Computerized neuropsychologic testing is a new tool in the treatment of concussions. These tests measure memory, new learning, attention, and reaction time and should be used as an adjunct to other tools for clinical decision making. Published guidelines will assist in treatment decisions; however, it should be kept in mind that all concussions are unique injuries.
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Total hip arthroplasty was originally indicated for older, sedentary patients because of concerns that catastrophic wear and failure would occur in younger and more active patients. With advances in implant design, tribology, and surgical technique, total hip arthroplasty has now become a viable option for younger patients seeking excellent pain relief and improvement in function. Long-term studies are needed to evaluate the outcome of hip arthroplasty in younger patients using the modern generation of implants and bearing surfaces.
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One of the primary goals in the perioperative care of orthopaedic patients undergoing surgery is the avoidance of allogeneic transfusion. There are a number of ways to lessen blood loss during surgical intervention including regional hypotensive anesthesia, careful and atraumatic surgical technique, and coagulation of bleeding surfaces. ⋯ The use of perioperative recombinant erythropoietin is also a useful adjunct to promote stimulation of the bone marrow and increased red cell production. Although many infectious diseases that are transmitted through allogeneic blood transfusions have been lessened by better screening techniques, there is still potential life threatening reactions and viral transmissions that may be avoided by comprehensive blood management in joint arthroplasty.
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Adolescent idiopathic scoliosis is a three-dimensional deformity of the spine. Despite active efforts by different research teams, the etiology of scoliosis remains unclear. Treatment of scoliosis requires a solid understanding of the natural history of the disorder as well as sound clinical judgment. ⋯ Bracing is the only nonsurgical measure proven to have any effect on halting the progression of scoliosis. Other forms of conservative treatment have not been shown to significantly modify the natural history of idiopathic scoliosis. Bracing results are directly related to compliance with brace treatment; therefore, optimal results cannot be achieved without the patient's cooperation and family support.