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AAOS 2019 Annual Meeting Your Academy 2019: Academy Leaders Discuss the Future of AAOS

During Thursday’s Your Academy 2019 at the AAOS 2019 Annual Meeting, former AAOS President David A. Halsey, MD; new AAOS President Kristy L. Weber, MD; and new First Vice-President Joseph A. Bosco III, MD, addressed the audience to talk about how the Academy has transformed over the last year and the vision for its future.

Read more about Dr. Halsey’s address…

Read more about Dr. Weber’s address…

Read more about Dr. Bosco’s address…

Other News

Study Evaluates Two-year Outcomes for TKA with Persona Knee Implant

A prospective, observational cohort study published online in BMC Musculoskeletal Disorders found positive two-year outcomes for total knee arthroplasty (TKA) patients who received a Persona Knee implant From November 2013 to July 2016, 146 consecutive primary TKAs were performed at three centers. Patients completed the Knee Injury and Osteoarthritis Outcome Score, Oxford Knee Score (OKS), Knee Society Score, and EQ-5D preoperatively and at six weeks, six months, one year, and two years postoperatively. At two-year follow-up, OKS increased from 22.1 to 41.8. One patient required revision due to a periprosthetic joint infection. All other patient-reported outcome measurements increased from the preoperative period to two years postoperatively.

Read the study…

AAOS 2019 Annual Meeting Paper Presentation: AI Effectively Predicts Implant Size in TKA Study

A study that used artificial intelligence (AI) to augment manufacturer-provided preoperative plans (MPPs) guiding patient-specific instrumentation (PSI) for total knee arthroplasty (TKA) found that AI-based preoperative plans (APPs) predicted femoral implant size in 75.3 percent of cases versus 23.1 percent with an MPP alone. The study—presented during the AAOS 2019 Annual Meeting—collected a dataset of 646 cases, and for each case, gathered the default plan provided by the PSI manufacturer in combination with the corresponding surgeon-corrected plan. Based on the dataset, the team created an AI model to try to predict the surgeon-approved plan based on the patient’s anatomy. The improved performance of AI sizing the femoral implant translated to 0.93 ± 0.65 changes required for an MPP versus 0.28 ± 0.51 changes required for an APP.

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Study Measures Impact of Cross-linked Polyethylene on THR Costs

According to a study published online in The Journal of Arthroplasty, the use of cross-linked polyethylene has significantly reduced total hip replacement (THR) costs in the United States. Researchers obtained contrasting midterm rates of revisions and dislocations of THRs using conventional polyethylene versus cross-linked polyethylene from registry studies and prospective, randomized, controlled trials They multiplied the incidence figures by the cost estimates of failures to estimate national cost savings associated with cross-linked polyethylene use. They found that savings in the United States may be $1 billion per annual cohort over a 15-year period.

Read the abstract…

AAOS 2019 Annual Meeting Poster Presentation: Study Combines CT and MRI to Probe Predictors of Collapse in Flatfoot Deformity

A study presented during the AAOS 2019 Annual Meeting combined an optimized assessment of soft-tissue structures provided by MRI with the dynamic evaluation of bone structures by weight-bearing CT (WBCT) in patients with flexible adult acquired flatfoot deformity (AAFD). The researchers observed that some degree of subtalar joint subluxation, as well as sinus tarsi impingement, was found in approximately 70 percent of the 55 patients (56 feet) with flexible AAFD. Multiple WBCT and MRI variables related to the severity of the deformity were obtained for 20 men and 35 women. Patients were evaluated for markers of arch collapse, increased valgus alignment of the hindfoot, forefoot abduction, subtalar joint subluxation, sinus tarsi and subfibular impingement, and soft tissue degeneration. In contrast to the 70 percent prevalence of subtalar joint subluxation and sinus tarsi impingement, subfibular impingement—representing a marker of even more severe collapse of the foot—was found in only 9 percent of the patients.

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How to Avoid Common Mistakes When Coding Hand Procedures

Billing for hand procedures is among the most complex types of orthopaedic coding. Here, AAOS Now highlights eight frequently encountered errors when coding hand procedures and how to fix them.

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Apply for the Shoulder & Elbow Program Committee Member Position

The Shoulder & Elbow Program Committee has an open member position. Over the course of a three-year term, the member will grade symposia in May and abstracts in June and July. The chair may serve as a moderator for paper sessions and critical evaluator of courses at the Annual Meeting. The application deadline is April 22.

Learn more and submit your application…(member login required)


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