Objective Quantification of Soft-Tissue Balance in Total Knee Arthroplasty: Expanded Validation of the Pendulum Knee Drop Test Across Multiple Surgeons.

Kevin Abbruzzese¹, Michael A Mont², Michael Dunbar³, Jared Weir⁴, Chase W Smitterberg², Sally LiArno¹

¹Stryker, Department of Orthopaedics, New Jersey, United States, Mahweh.

²The Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Department of Orthopaedic Surgery, Maryland, United States, Baltimore.

³Dalhousie University Orthopaedics, Nova Scotia, Canada, Halifax.

⁴Weir Orthopaedics, Department of Orthopaedic Surgery, Michigan, United States, Saginaw.

PubMed DOI

Abstract

Despite increasing evidence showing major diversity in subjective balancing approaches, soft-tissue balance during total knee arthroplasty (TKA) remains primarily based upon empirical surgeon assessment. A quantitative technique for describing knee stiffness and laxity after TKA was previously introduced: the modified pendulum knee drop (PKD) test. This study expands upon prior validation work by…

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