Today’s Top Story

Study: Predictor of Reinfection After Débridement, Antibiotics, and Implant Retention in Chronic PJI

A retrospective study published online in The Journal of Arthroplasty observed a correlation between increased erythrocyte sedimentation rate:C-reactive protein ratio (ECR) and reinfection in débridement, antibiotics, and implant retention (DAIR) patients. A total of 179 DAIR revision total joint arthroplasty patients were stratified into three groups: acute periprosthetic joint infection (PJI), acute hematogenous PJI, and chronic PJI. Elevated ECR in chronic PJI patients was significantly associated with reinfection risk. ECR did not largely differ between patients who underwent DAIR for acute infection and acute hematogenous infection. In the chronic PJI group, ECR had a 75 percent sensitivity and 84 percent specificity for predicting postoperative reinfection.

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In Other News

Study: Midterm THA Outcomes After Previous Hip Arthroscopy

A study published in the June 15 issue of the Journal of the AAOS ® assessed midterm patient-reported outcomes (PROs) for total hip arthroplasty (THA) patients with a history of ipsilateral hip arthroscopy (PA). A total of 34 PA cases (33 patients) were matched to 89 control cases (87 patients). Harris Hip Score, Forgotten Joint Score, pain, and patient satisfaction did not differ between the groups after at least five years. The arthroplasty approach did not affect outcomes. The PA group had a higher postoperative complication rate and revision THA rate.

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Study: Does TKA Without Patellar Resurfacing Benefit from Modified Femoral Implant Design?

A study published online in BMC Musculoskeletal Disorders assessed the effect of femoral implant design modification on anterior knee pain (AKP) and patellar crepitus in total knee arthroplasty (TKA) without patella resurfacing. Sixty-two patients each received the modern prosthesis and traditional prosthesis (control group). The modern prosthesis group had a significantly lower rate of AKP than the control group at three months (4.7 percent versus 13.3 percent) and one year (3.5 percent versus 13.3 percent) postoperatively. Patellar crepitus incidence was also lower in the modern prosthesis group than the control group at both time points (15.3 percent versus 34.4 percent and 10.6 percent versus 28.9 percent, respectively).

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Study: Operative Versus Nonoperative Wrist Ganglia Treatment in Children

A retrospective study published in the June issue of The Journal of Hand Surgery compared surgical and nonsurgical treatment of wrist ganglia in children. Fifty nonsurgical and 40 surgical patients were followed for an average 4.6 years. The nonsurgical group had a 52 percent persistence rate; the surgical group had a 15 percent recurrence rate. In 94 percent of nonsurgical patients who experienced recurrence, this happened in the first 18 months. Persistence was more common among dorsal ganglions (63 percent) than volar ganglions (33 percent) and among older children than younger children (58 percent versus 31 percent).

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Study Validates Tool to Predict Outcomes After Fracture Nonunion Repair

A study published in the June issue of the Journal of Orthopaedic Trauma assessed the ability of the Predicting Risk of Function in Trauma-nonunion (PRoFiT-NU) score to forecast functional outcomes after fracture nonunion repair. The Short Musculoskeletal Function Assessment (SMFA) was used to analyze functional outcomes, with SMFA function index > 10 points above the mean at one-year postoperatively indicative of poor outcome. Significant predictors of poor outcome included lower extremity nonunion, tobacco use, workers’ compensation insurance, radiographic bone loss, and preoperative SMFA function index. The PRoFiT-NU model successfully predicted poor functional outcomes.

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OVT Debuts Curriculum on Patient Safety and Quality

Julie Balch Samora, MD, PhD, MPH, FAAOS, and Kevin Shea, MD, FAAOS, recognized a need for an educational curriculum around patient safety and quality improvement, a critical area in orthopaedics that is evolving on a daily basis. During the course of a year, Drs. Shea and Samora worked diligently to develop the AAOS Patient Safety and Quality Improvement (PSQI) curriculum and have enlisted the assistance of dozens of orthopaedic experts who have willingly shared their knowledge, insight, and experience. The PSQI curriculum will gradually roll out more than 40 modules, with the first 20 already uploaded to the Orthopaedic Video Theater (OVT) in December 2019.

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AAOS Partners with New Hotel Provider for Annual Meeting Bookings Discounts

AAOS has partnered with onPeak to be the official hotel provider for the AAOS 2021 Annual Meeting. Only through onPeak can you secure AAOS exclusive discounted nightly rates at favorable San Diego hotels. There are more than 50 hotels to choose from, but AAOS encourages you to book your hotel early for the best selection and price.

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