Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Online First™

Articles

Does the Critical Shoulder Angle Correlate With Rotator Cuff Tear Progression?

Peter N. Chalmers MD, Dane Salazar MD, Karen Steger-May MA, Aaron M. Chamberlain MD, Ken Yamaguchi MD, MBA, Jay D. Keener MD
24th January 2017, Clinical Research

The critical shoulder angle (CSA) has been reported to be associated with rotator cuff disease and has been suggested as an etiology for cuff tears. However, it is unclear whether acromial morphologic characteristics such as CSA are a cause or effect because all studies to date have been retrospective.

Is There an Association Between Hemoglobin A1C and Deep Postoperative Infection After TKA?

Jourdan M. Cancienne MD, Brian C. Werner MD, James A. Browne MD
23rd January 2017, Clinical Research

Despite substantial research into the use of glycemic markers to stratify infection risk in patients with diabetes mellitus, there is little evidence to support a perioperative hemoglobin A1c (HbA1c) level associated with an increased risk of deep postoperative infection after TKA.

Which Clinical and Patient Factors Influence the National Economic Burden of Hospital Readmissions After Total Joint Arthroplasty?

Steven M. Kurtz PhD, Edmund C. Lau MS, Kevin L. Ong PhD, Edward M. Adler MD, Frank R. Kolisek MD, Michael T. Manley FRSA, PhD
20th January 2017, Symposium: Learning From Large-Scale Orthopaedic Databases

The Affordable Care Act of 2010 advanced the economic model of bundled payments for total joint arthroplasty (TJA), in which hospitals will be financially responsible for readmissions, typically at 90 days after surgery. However, little is known about the financial burden of readmissions and what patient, clinical, and hospital factors drive readmission costs.

Does N-terminal Pro-brain Type Natriuretic Peptide Predict Cardiac Complications After Hip Fracture Surgery?

Hiroki Ushirozako MD, Tsuyoshi Ohishi MD, PhD, Tomotada Fujita MD, Daisuke Suzuki MD, PhD, Kazufumi Yamamoto MD, PhD, Tomohiro Banno MD, Hiroyuki Takase MD, PhD, Yukihiro Matsuyama MD, PhD
18th January 2017, Clinical Research

Elderly patients with hip fracture are at risk for cardiac complications. N-terminal pro-brain type natriuretic peptide (NT-proBNP) has been shown to predict cardiac complications in surgical patients; however, to our knowledge, only two studies have evaluated the utility of this test in patients with hip fracture. We believe it is important to assess a more accurate cutoff value of NT-proBNP with exclusion of patients with renal failure.

Blended Chitosan Paste for Infection Prevention: Preliminary and Preclinical Evaluations

Joel M. Berretta MS, Jessica A. Jennings PhD, Harry S. Courtney PhD, Karen E. Beenken PhD, Mark S. Smeltzer PhD, Warren O. Haggard PhD
17th January 2017, Symposium: 2016 Musculoskeletal Infection Society Proceedings

Local drug delivery devices offer a promising method for delivering vancomycin and amikacin for musculoskeletal wounds. However, current local delivery devices such as beads and sponges do not necessarily allow for full coverage of a wound surface with eluted antibiotics and do not address the need for reducing the antibiotic diffusion distance to help prevent contamination by bacteria or other microorganisms. We blended chitosan/polyethylene glycol (PEG) pastes/sponges to increase biocompatibility and improve antibiotic coverage within the wound.

Increased Risk of Revision, Reoperation, and Implant Constraint in TKA After Multiligament Knee Surgery

Steven I. Pancio MD, Paul L. Sousa MD, Aaron J. Krych MD, Matthew P. Abdel MD, Bruce A. Levy MD, Diane L. Dahm MD, Michael J. Stuart MD
13th January 2017, Clinical Research

The risk of major complications and revision arthroplasty after TKA in patients who previously underwent multiligament knee surgery have been poorly characterized.

High Risk of Readmission in Octogenarians Undergoing Primary Hip Arthroplasty

Arthur L. Malkani MD, Brian Dilworth MD, Kevin Ong PhD, Doruk Baykal PhD, Edmund Lau MS, Theresa N. Mackin BA, Gwo-Chin Lee MD
12th January 2017, Symposium: Learning From Large-Scale Orthopaedic Databases

As life expectancy increases, more elderly patients with end-stage hip arthritis are electing to undergo primary THA. Octogenarians undergoing THA have more comorbidities than younger patients, but this is not reflected in risk adjustment models for bundled care programs. The burden of care associated with THA in octogenarians has not been well characterized, and doing so may help these value-based programs make adjustments so that this vulnerable patient population does not risk losing access under accountable care models.