BARDOU-JACQUET, Julien; MURGIER, Jérome; LAUDET, François; FABRE, Thierry

doi:10.1016/j.otsr.2021.102889

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BARDOU-JACQUET, Julien

MURGIER, Jérome

LAUDET, François

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Orthopaedics and Traumatology - Surgery and Research. 2022-09p. 102889

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Good ligament balance in total knee arthroplasty (TKA) is thought to improve clinical results, but is highly surgeon-dependent when performed without technological assistance. We therefore describe a TKA technique using the Mako robotic arm (Stryker, Kalamazoo, Michigan, USA) as sole means of balancing ligament tension by bone recuts associated to control by the VERASENSE load sensor (Orthosensor, Inc, Dania Beach, Florida, USA). In this preliminary series of 29 patients, 27 (93%) showed a well-balanced knee in extension at end of procedure, and 23 (79%) showed a well-balanced knee in flexion and extension, without any periarticular soft-tissue release. The load sensor analyzes ligament balance after the initial bone cuts, and guides possible further femoral or tibial recuts. This technique enables quantifiable alignment and control of ligament tension. Collecting objective intraoperative data should improve knowledge in placing TKA prostheses.< Réduire

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Alignment

Load sensor

Robotic arm

TKA

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Combining load sensor and robotic technologies for ligament balance in total knee arthroplasty.

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