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| Today’s Top Story
Study Evaluates Protective Effect of Ceramic Coating in Cemented TKA Against Revision for PJI
A study published online in The Journal of Arthroplasty assessed the correlation between ceramic coating in cemented primary total knee arthroplasty (TKA) and revision due to early prosthetic joint infection (PJI). A total of 117,660 cemented primary TKAs with a maximum three years of follow-up were assessed, of which 4,367 had a ceramic-coated femoral component. At three years, 42 were revised for PJI, and 122 were revised for other reasons. There did not appear to be a survival advantage for revision due to PJI for ceramic-coated components.
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| In Other News
Study Assesses Fluid in Hip Hemiarthroplasty Patients with Prolonged Wound Drainage
A study published online in Injury analyzed the fluid collected from prolonged wound drainage patients after hip hemiarthroplasty. Drainage fluid/serum tests performed in 28 patients (mean age, 79.64 years; 61.1 percent were male) yielded the following values: total protein, 2.1/5.2 g/dL; albumin, 1.3/3.1 g/dL; lactate dehydrogenase, 121/324 U/I; cholesterol, 28/160 mg/dL; triglyceride, 37/122 mg/dL; sodium, 140/140 mg/dL; and potassium, 4.1/4.1 mg/dL. The drainage fluid had a pH of 7.6. The researchers detected fibrinogen beta chain, keratin type 1, and creatine kinase M-type protein in the drainage fluid. Gliseraldehyde-3-phosphate dehydrogenase and beta actin antibody were found in the drainage fluid but not the serum.
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| Study: Do Anesthesia Type and Surgical Technique Impact Carpal Tunnel Release Outcomes?
A study published online in The Journal of Hand Surgery compared anesthesia (monitored anesthesia care [MAC] versus wide-awake local anesthesia no tourniquet technique [WALANT]) and surgical (mini-open versus endoscopic) techniques in carpal tunnel release (CTR). Four hand surgeons performed open (n = 43) and endoscopic (n = 50) CTRs under MAC (n = 62) and WALANT (n = 31). Overall, between-group differences in terms of opioid pain medication use, patient satisfaction with postoperative pain control, and pain scores did not largely differ.
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| Study Evaluates Typical Shoulder Range of Movement
A study published online in BMC Musculoskeletal Disorders measured average range of active shoulder flexion, abduction, and external rotation in a population with no pain or stiffness. In a group of 2,404 participants (mean age, 45.8 years; 51.5 percent were male), the average range of active right shoulder flexion was 161.5 degrees for males and 158.5 degrees for females; active right shoulder abduction was 151.5 degrees and 149.7 degrees, respectively. Age-related declines were observed in males and females in mean right active shoulder flexion (43.0 degrees and 40.6 degrees, respectively) and active shoulder abduction (39.5 degrees and 36.9 degrees, respectively).
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| Ray Dalio Donates $50 Million to Address Racial Healthcare Disparities
Billionaire Ray Dalio, founder of the hedge fund Bridgewater Associates, is donating $50 million to New York-Presbyterian Hospital to “address health disparities and health justice through research, education, advocacy, and investment in communities,” according to a press release. The donation from Dalio Philanthropies will go toward establishing the Dalio Center for Health Justice.
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| AAOS Now
Allograft MUCL Reconstruction Beneficial Even in Nonathletes
There are vast data on the use of medial ulnar collateral ligament (MUCL) reconstruction in young athletes; however, limited information exists on nonathlete patients seeking functional elbow outcomes. A recent study found that following failure of nonsurgical treatments, MUCL allograft reconstruction in nonelite athletes and average workers has a low rate of recurrent instability and provides good functional outcomes. The researchers said the functional scores were comparable to many previously reported autograft outcomes in elite athletes. Erick Marigi, MD, an orthopaedic surgery resident physician at Mayo Clinic, presented the study as part of the Annual Meeting Virtual Experience.
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