Instructional course lectures
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Review Comparative Study
Different surgical options for monocompartmental osteoarthritis of the knee: high tibial osteotomy versus unicompartmental knee arthroplasty versus total knee arthroplasty: indications, techniques, results, and controversies.
The decision of what procedure to perform for the treatment of monocompartmental osteoarthritis of the knee when nonsurgical treatment methods fail remains controversial. Recent advances using osteotomy, unicompartmental knee replacement, and total knee replacement have been reported. ⋯ Many techniques now involve osteotomies below the tibial tubercle. Unicompartmental knee replacement can be done using a standard approach, but less invasive approaches exist, along with minimally invasive approaches for total knee replacement, rather than the standard large incision, that promote decreased soft-tissue destruction.
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Cervical spine injuries are frequently encountered in any practice treating patients in the emergency department or outpatient trauma victims. When upper or lower cervical spine injuries are suspected, immediate immobilization, physical and neurologic examination, and radiographic evaluation are imperative. For spinal cord injuries, knowledge of microscopic and cellular pathology helps to determine appropriate management.
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Neck pain is a common complaint that typically represents a spectrum of disorders affecting the cervical spine. The clinical history and examination of patients with neck pain dictate the proper timing and selection of diagnostic studies such as plain radiography, MRI, and myelography with CT. ⋯ Nonsurgical treatment is the most appropriate first step in almost all cases of cervical radiculopathy. In contrast, the conservative care of cervical spondylotic myelopathy with measures such as physical therapy, spinal manipulation, medications, collars, and traction is limited.
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Neural injuries that occur after total hip arthroplasty (THA) can be classified as involving either the central nervous system or peripheral nerves. Central nervous system changes after THA may be attributed to increased appreciation of fat embolism syndrome associated with THA. Certain maneuvers such as impacting the acetabulum, femoral reaming, and cement pressurization can force marrow fat into the venous system. ⋯ The mechanisms of vascular injury include occlusion associated with preexisting peripheral vascular disease and vascular injury during removal of cement during screw fixation of acetabular components, cages, or structural grafts. Perioperative assessment should include vascular evaluation of patients with absent pulses, previous vascular bypass surgery, or dysvascular limbs. A CT scan should be considered when cement or components extend medially into the pelvis.
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Osteoporosis has received heightened attention over the past 2 decades because of its overwhelming cost to society. It is one of the most common diseases affecting both men and women. The key to treatment is early prevention accompanied by modification of risk factors and impact-oriented exercise, optimal medical management with antiresorptive medications, and addressing the complications of this disease such as compression fractures and spinal deformities. ⋯ The surgical treatment of deformities such as kyphosis and scoliosis can be very challenging given the poor bone quality and propensity for instrumentation cutout. The surgical treatment of spinal stenosis in the face of deformity in these patients requires keen surgical planning and a clear identification of the source of the patient's complaints--be it the deformity, the stenosis, or both. Several advances in instrumentation, such as the use of laminar fixation (if available), multisegment fixation, limited correction of the deformity, and augmentation of pedicle screw purchase through biologic and nonbiologic fillers have been developed.