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| Today’s Top Story
Study Analyzes Five-year Wear Rates in Mobile-bearing UKR
A retrospective study published online in Knee Surgery, Sports Traumatology, Arthroscopy assessed patterns of wear in mobile-bearing unicompartmental knee replacement (UKR) and associated factors. Forty medial Oxford UKRs included in a randomized trial were evaluated one week, three months, six months, one year, two years, and five years postoperatively for bearing thickness. Creep and wear—early penetration and late penetration at a constant rate, respectively—were determined. The six-month penetration rate was constant. A wear rate of 0.07 mm per year was observed. Factors associated with increased wear included an increase in the area of overhang, amount of medial overhang, and distance between the bearing and tibial wall.
Read the study… |
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| In Other News
Study: Are Women Speaking at Medical Conferences?
Overall, women remain significantly underrepresented as speakers at medical conferences, according to a study published online in JAMA Network Open. Medical conference programs from March 2017 to November 2018 across 20 specialties in the United States, United Kingdom, Australasia, Canada, and Europe were assessed. Across 98 conferences, there were 8,535 sessions with 23,440 speakers—of whom 30.1 percent (n = 7,064) were female. Slightly more than a third of panels were all-male, while 6.7 percent were all-female. Large variations of female representation were observed by region and specialty, ranging from 5.8 percent to 74.5 percent. A greater proportion of women on planning committees strongly predicted representation of female speakers.
Read the study… |
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| Study Compares Failure Rates, Mortality Between Hip Revisions for Infection Versus Aseptic Loosening
A study published online in The Journal of Arthroplasty analyzed differences in failure and mortality between revisions performed for periprosthetic hip infection (PHI) versus aseptic loosening. An arthroplasty registry was searched for data including pre- and intraoperative demographics and implant-related features. Survival rates were similar between the groups after 10 years. In both groups, half of re-revisions were performed within the first two years. The PHI group had a statistically significantly higher rate of mortality than the aseptic loosening group.
Read the abstract… |
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| Study: Should RCR Patients Undergo Distal Clavicle Resection?
A randomized trial published online in Orthopaedics & Traumatology: Surgery & Research compared outcomes between rotator cuff repair (RCR) patients who did versus did not simultaneously undergo distal clavicle resection (DCR). Patients were randomized to receive either RCR plus DCR (n = 97) or RCR alone (n = 103). One year postoperatively, all clinical outcomes were poorer in the DCR group, but the differences did not reach statistical significance except for external rotation with elbow at side and the Subjective Shoulder Value. The DCR group had worse overall shoulder pain during the first three months postoperatively and residual pain at one year postoperatively.
Read the abstract… |
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| COVID-19 Updates
HHS Announces Additional $20 Billion in Provider Relief Funding
Starting Oct. 5, healthcare professionals working on the front lines of COVID-19 will be able to apply for new relief funding, the Department of Health and Human Services (HHS) announced. The agency is distributing an additional $20 billion in funding during this Phase 3 General Distribution allocation. Providers that have already received payments and those who were ineligible for previous grants can apply, including those who started working this year and an expanded group of behavioral health providers.
Read the HHS press release…
Read AAOS’ Provider Relief Fund FAQ…
Learn more about COVID-19 loan and grant information… |
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| AAOS Now
Optimization Protocols for TJA Reduce Prosthetic Joint Infection
Implementation of preoperative optimization protocols for total joint arthroplasty (TJA) was associated with significant reductions in prosthetic joint infection (PJI), according to a study presented as part of the Annual Meeting Virtual Experience. Specifically, four of five protocols included in the review demonstrated significant reduction in PJI.
Read more… |
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| Your AAOS
AAOS Shoulder & Elbow Registry Launches Shoulder Arthroplasty Predictive Model
The AAOS Shoulder & Elbow Registry (SER) recently received the Shoulder Arthroplasty Predictive (SHARP) Model, a tool designed to help surgeons predict postoperative shoulder arthroplasty outcomes, from Campbell Clinic Orthopaedics, a leader in musculoskeletal care and sports medicine. Available exclusively to current and future SER participants, the SHARP Model helps guide preoperative, evidence-based conversations between surgeons and patients and set appropriate expectations around surgical outcomes based on a patient’s individual health.
Read the AAOS press release… |
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