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| Today’s Top Story
Study Identifies Risk Factors for Postoperative Delirium After Hip and Knee Replacement
A systematic review and meta-analysis published online in the Journal of Orthopaedic Surgery and Research identified risk factors consistently associated with postoperative delirium in knee and hip replacement. Final analysis consisted of 22 studies encompassing 11,934 total patients who underwent hip and knee replacement; 1,841 patients developed postoperative delirium, for an incidence rate of 17.6 percent. Among the 18 significant risk factors were advanced age, cognitive impairment, history of cerebrovascular events, knee replacement, blood loss, dementia, neurologic disorders, psychiatric illness, and obstructive sleep apnea.
Read the study… |
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| In Other News
Study: Association Between Preoperative Anemia and Complications After TSA
A study published in the January issue of the Journal of the AAOS: Global Research & Reviews ® observed a correlation between preoperative anemia and increased risk for 30-day complications following total shoulder arthroplasty (TSA). A total of 10,547 patients were stratified by anemia status: normal, mild anemia (18.2 percent), and severe anemia (1.4 percent). Mild anemia was a significant predictor of any complication, stroke/cerebrovascular accident, postoperative anemia requiring transfusion, nonhome discharge, readmission, and return to the surgical room. Severe anemia was a significant predictor of any complication, renal complication, postoperative anemia requiring transfusion, and nonhome discharge.
Read the study… |
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| Study: Impact of Adding Corticosteroids to Multimodal Cocktail Periarticular Injection in TKA
A meta-analysis published online in the Journal of Orthopaedic Surgery and Research evaluated the effectiveness of periarticular injection of corticosteroids in patients undergoing total knee arthroplasty (TKA). Final analysis consisted of 10 randomized, controlled trials published before July 2020 involving 829 total patients. On postoperative day (POD) one, POD2, and POD3, the corticosteroid group had significantly lower visual analog scale score at rest. On POD1 and POD2, the corticosteroid group had increased range of flexion motion; the opposite trend was observed for range of extension motion on POD2 and POD3. Postoperative drainage, hospital length of stay, infection, nausea, and vomiting did not differ between the groups.
Read the study… |
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| Study Assesses Rate of BMD Testing and Subsequent Fracture-free Interval After Forearm Fracture
A study published online in The Journal of Hand Surgery found that bone mineral density (BMD) testing may be underused among Medicare patients who sustain a distal forearm fracture. Using the 5 percent Medicare Standard Analytic File dataset using the PearlDiver Application from 2005 to 2014, 37,473 patients sustained distal forearm fractures and did not undergo BMD testing in the two years before fracture. Of these patients, 9,605 were tested after the fracture (26 percent), and 2,684 were tested within six months (7 percent). Patients who underwent BMD testing after fracture, compared to those who didn’t, had a longer fracture-free interval (819 days versus 579 days).
Read the abstract… |
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| Study: Relationship Between Ankle Morphology and Juvenile Osteochondritis Dissecans of the Talus
A study published in the February issue of the Journal of Pediatric Orthopaedics assessed the correlation between ankle morphology and juvenile osteochondritis dissecans (JOCD) of the talus. Twenty-two patients (25 ankles) with talus JOCD lesions were age- and sex-matched to 50 patients with 50 healthy ankles. MRI was used to measure eight parameters, including tibial anterior surface angle, tibial shaft both malleoli angle, length of trochlea tali arc, height of trochlea tali arc, and more. Ankles with JOCD lesions, compared to controls, had a significant length of trochlea tali arc increase. The axial and coronal parameters did not differ between the groups.
Read the abstract… |
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| AAOS Now
Rise of the Machines: The Emergence of Robotics
The introduction of robotics has revolutionized the fields of urologic, gynecologic, and cardiac surgery, where robotic surgery has become routine and widely accepted. Orthopaedic surgery has been comparatively slower in its development and adoption of parallel technology. However, the use of robotics in orthopaedic surgery is becoming more common—a trend that is likely to continue. In the conclusion of a three-part series focused on novel technologies, this article discusses the use of robotics in arthroplasty procedures and additional uses that are currently being studied in orthopaedics, as well as some of the limitations of robotic technology.
Read more…
Read part one…
Read part two… |
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| Your AAOS
Free Webinar: “AAOS Leadership Institute: Decoding The Mystery of AAOS Governance”
Tune in Feb. 10 at 7:15 p.m. CST (8:15 p.m. EST) for this 60-minute, discussion-based webinar led by AAOS Past President Kristy L. Weber, MD, FAAOS. The objective of this free event is to inform members of the current and future opportunities and challenges in AAOS governance. The first in a series of six webinars from the AAOS Leadership Institute (ALI) throughout 2021, this inaugural event will review the history of AAOS’ governance and its structure, the fiduciary responsibilities related to governance, and details of a mission- versus member-based organization. Registration is free, and the webinar will be recorded and made available to watch again after the event. For ALI participants, this event fulfills one of three webinar attendance requirements.
Learn more and register today…(member login required) |
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