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  • New approach to total knee replacement spares muscle, decreases pain

    Total knee arthroplasty, also known as total knee replacement, is one of the most commonly performed orthopedic procedures. According to the American Academy of Orthopedic Surgeons, as of 2010, more than600,000 total knee replacements were being performed annually in the United States. The number of total knee replacements performed annually in the U.S. is expected to grow by 673 percent to 3.48 million procedures by 2030.

    To start, a rigorous preoperative optimization process is now in place to help minimize the risk of complications after surgery. Patients also attend a joint education class to be advised of what to expect before, during and after the surgery. Studies have shown that these educational classes improve patient outcomes.

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  • Semi-constrained implant improves revision knee arthroplasty outcomes

    Use of a semi-constrained implant in revision knee arthroplasty produced acceptable implant survival and functional outcomes during the long-term follow-up period, according to study results.

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  • Are doctors performing too many unnecessary knee-replacement surgeries?

    More than one-third of total knee replacements performed in the U.S. were deemed "inappropriate" in a new study that used a patient classification system to weigh the risks and benefits.

    The study, published June 30 in the journal Arthritis & Rheumatology, looked at 175 people who underwent total knee replacement surgery.

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  • Ask a Sports Medicine Doc: Hip injuries among youth

    Q: My 14 year old daughter is a competitive ski racer and has been having hip pain. Could she have a labral tear?

    A: Hip injuries are on the rise in adolescent athletes. This is due to the increasing number of young athletes participating in organized sports as well as advances in technology that have improved clinician’s diagnostic ability.

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  • Smith & Nephew DYONICS(TM) PLAN brings first-of-its-kind, individualized surgical planning to hip arthroscopy

    Smith & Nephew (NYSE:SNN;LSE:SN), the global medical technology business, will launch its DYONICS PLAN Hip Impingement Planning System at this week's American Academy of Orthopaedic Surgeons (AAOS) annual meeting in New Orleans. Unlike standard imaging tools, DYONICS PLAN is a revolutionary 3D software system that allows surgeons to visualize, assess and generate a comprehensive surgical report for each patient's unique Femoroacetabular impingement (FAI) surgery before that patient ever enters the operating room.

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  • MRI to 'see through' metal screws developed to follow patients after hip fracture surgery

    People who sustain the most common type of hip fracture are at increased risk of complications. A special type of MRI has been developed that can show a detailed image following fracture repair, without the distortion caused by metal surgical screws that are problematic in standard MRIs. Each year, more than 340,000 people suffer a broken hip in the United States.

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  • Genetics may explain high-functioning senior athletes with hip abnormalities

    Genetics may explain why some senior athletes are high functioning despite having one or both hip abnormalities typically associated with early onset osteoarthritis: developmental dislocation of the hip (dysplasia), a loose hip joint; or femoroacetabular impingement (FAI), a condition in which the hip bones are abnormally shaped.

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  • Magnesium may protect against hip fractures

    Drinking water with a relatively high concentration of magnesium protects against hip fractures, according to results of a new study. The researchers studied variations in magnesium and calcium levels in drinking water between different areas, as these are assumed to have a role in the development of bone strength. They wanted to examine whether there was a correlation between magnesium and calcium concentrations in drinking water and the incidence of hip fracture. The study results show that magnesium protects against hip fracture for both men and women. The researchers found no independent protective effect of calcium.

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  • Silk-based surgical implants could offer a better way to repair broken bones

    Using pure silk protein derived from silkworm cocoons, investigators have developed surgical plates and screws that offer improved remodeling following injury and can be absorbed by the body over time. When a person suffers a broken bone, current treatment calls for the surgeon to insert screws and plates to help bond the broken sections and enable the fracture to heal. These "fixation devices" are usually made of metal alloys. But metal devices may have disadvantages: Because they are stiff and unyielding, they can cause stress to underlying bone, among other problems.

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  • Complication rates for nonagenarian patients similar to those of younger patients undergoing total hip replacement surgery

    As more Americans are living well into their 90s, the number of nonagenarian total hip replacement (THR) candidates continues to increase.

    The authors of the study concluded that nonagenarian patients can safely undergo a THR, despite advanced age and a higher prevalence of comorbidities. Overall, the nonagenarian patients experienced a complication rate comparable to those of younger THR patients, and the higher mortality rate is well within expectations for individuals age 90 and older.

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