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  • Minor exercise can protect premenopausal women's bones

    According to new research, premenopausal women who engage in physical activity can significantly reduce a known inhibitor of bone formation called sclerostin.

    The study, which will be published in the October issue of Endocrine Society's Journal of Clinical Endocrinology and Metabolism (JCEM), also found that physical activity improved IGF-1 levels, which have a positive impact on bone formation.

    "Physical activity training is conceptually simple, inexpensive, and can serve practical purposes including reducing the risk of low bone mass, osteoporosis, and consequently fractures. Our study found that even minor changes in physical activity were associated with clear effects on serum levels of sclerostin, IGF-1 and bone turnover markers."

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  • Osteoarthritis after ACL surgery

    Your anterior cruciate ligament, or ACL, is one of four ligaments in the knee. If your ACL tears, you may need surgery. Unfortunately, many patients develop osteoarthritis after surgery, regardless of the type of surgery.

    Patients who have undergone single bundle ACL reconstruction surgery may not have a greater osteoarthritis risk than those who have undergone double bundle ACL reconstruction.

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  • Low Rates of Knee Arthritis in Women

    Knee osteoarthritis is one of the main health burdens in the United States. Because of this condition, there is a need to better understand the course of disease to prevent and slow knee arthritis.

    Middle-age women develop osteoarthritis at fairly low rates. However, in women who already have the condition, symptoms are likely to get worse within 15 years.

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  • Robot assistance simplifies placing patient-specific UKA prostheses in pilot study

    A new robotic device led to placement of unicompartmental knee arthroplasty implants matched to the patient's anatomy that exceeded the accuracy of placements involving traditional procedures and components, according to results of a pilot study presented at the British Orthopaedic Association Congress 2012, here.

    Preoperatively surgeons made operative plans for all these cases using input from CT scans that guided component position, orientation and selection of component size. Intraoperatively the surgeon holds the burr used to remove bone, but the robot provides haptic and visual feedback, Andrews said.

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  • PCL repair surgery did not lead to growth problems in pediatric, adolescent patients

    Following failed conservative treatment, PCL repair or reconstruction is a safe and viable treatment option for pediatric and adolescent patients with multiligament or isolated PCL injuries, according to recent study results.

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  • Patients with high BMI show similar improvements in patient-reported outcomes after TKA

    Researchers from the United Kingdom have reported similar improvements in patient-reported outcomes after elective total knee arthroplasty regardless of patient body mass index, according to a recent study published in the Journal of Bone & Joint Surgery.

    “Patients achieve equivalent improvements in knee function and general health irrespective of their preoperative BMI,” Baker told ORTHOPEDICS TODAY. “Obese patients gain as much benefit from knee replacement as patients with a ‘normal’ BMI, even if they do not end up at a similar postoperative level. Accordingly, we feel that the obese should not be excluded from the benefit experienced by their fellow patients with lower BMI from undergoing total knee replacement.”

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  • Meta-analysis finds initial walking speed positively impacted by knee arthroplasty

    Knee arthroplasty helped increase patients’ walking speed at 6 months to 60 months postoperatively, according to a study conducted by researchers in The Netherlands.
    For the analysis, the authors looked through 16 independent comparisons of pre-operative and postoperative walking speed for patients who underwent knee arthroplasty. In all, they identified 12 studies in their survey of MEDLINE, Web of Science, and PEDro, for a total of 419 patients.

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  • Primary TKA found effective in patients with BMI greater than 50

    Researchers from London, Ontario, found total knee arthroplasty efficacious in patients with body mass indices equal to or greater than 50, but remained cautious about the safety of the procedure in the group due to higher risks of complications and revisions.

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  • What is knee replacement surgery? What is knee arthroplasty?

    Replacement surgery in a damaged knee joint by placing an artificial prosthesis will alleviate pain and help better movement of the knee.

    For most patients, a replacement knee surgical procedure will last for at least 15 to 20 years, especially if cared for properly and not put under too much strain. More than 90% of people who have total knee replacement surgery experience a dramatic decrease in knee pain and a significant improvement in their ability to perform common activities of daily living.

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  • Direct anterior approach to THA yields good results, depends upon surgeon experience

    The use of the direct anterior approach in total hip arthroplasty can yield good results backed by numerous studies but depends upon proper education, according to one surgeon’s experience.

    J. Bohannon Mason, MD, shared his findings at the International Congress for Joint Reconstruction San Diego 2012 meeting, which was held in collaboration with Orthopedics Today.

    “The best approach? They all have advantages and disadvantages,” he said. “When you look at [DA], it does require special instrumentation and I would say it does require special training – however, you have quick recovery, stability and proper cup positioning.”

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