Cemented Stem Design in Total Hip Arthroplasty: Fixation Philosophies, Biomechanics, and an Updated Classification System

From the Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD (Dr. Hegde, Dr. Harris, Dr. Khanuja), and the OrthoCarolina Hip and Knee Center and Atrium Musculoskeletal Institute, Charlotte, NC (Dr. Springer).

Dr. Hegde or an immediate family member serves as a paid consultant to Globus Medical; has received research or institutional support from Ortho Development; has received nonincome support (such as equipment or services), commercially derived honoraria, or other non-research–related funding (such as paid travel) from Smith & Nephew and OMEGA; serves as a board member, owner, officer, or committee member of the American Association of Hip and Knee Surgeons. Dr. Springer or an immediate family member has received royalties from Osteoremedies and Stryker; serves as a paid consultant to Convatec, Osteoremedies, and Stryker; serves as a board member, owner, officer, or committee member of AJRR, American Association of Hip and Knee Surgeons, and IOEN; Editorial or governing board: Arthroplasty Today, Journal bone and joint infection, and Journal of Arthroplasty. Dr. Khanuja or an immediate family member has received royalties from Smith & Nephew; serves as a paid consultant to Smith & Nephew; has stock or stock options held in Sight Medical; serves as a board member, owner, officer, or committee member of AAOS and the American Association of Hip and Knee Surgeons; Editorial or governing board: Journal of Arthroplasty. Neither Dr. Harris nor any immediate family member has received anything of value from or has stock or stock options held in a commercial company or institution related directly or indirectly to the subject of this article.

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