Assessment in Primary TKA: Intraoperative Assessment Tensor

  • Tomoyuki Matsumoto
  • Hirotsugu Muratsu
  • Ryosuke Kuroda
Chapter

Abstract

Knee instability after primary total knee arthroplasty (TKA) is considered an important factor for early TKA failure. However, intraoperative assessment of soft tissue balance during TKA remains difficult, and management is left largely to the surgeon’s subjective feel and experience. Whereas several quantitative measurement methods using tensor or balancer were traditionally reported, measurement was performed with unphysiological condition after TKA, assessment between bone cut surfaces with patellofemoral (PF) joint reduction. Furthermore, surgeons need to understand the clinical values of intraoperative soft tissue balance assessment.

In this chapter, we introduce an offset-type TKA tensor. Its design facilitates soft tissue balance measurements, throughout the range of motion, with a reduced and repaired PF joint and femoral component in place. Clinical values using this tensor are also highlighted.

Keywords

Total knee arthroplasty Soft tissue balance Gap technique Patellofemoral joint Cruciate-retaining TKA Posterior-stabilized TKA Navigation system 

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Copyright information

© ISAKOS 2017

Authors and Affiliations

  • Tomoyuki Matsumoto
    • 1
  • Hirotsugu Muratsu
    • 2
  • Ryosuke Kuroda
    • 1
  1. 1.Department of Orthopaedic SurgeryKobe University Graduate School of MedicineKobeJapan
  2. 2.Department of Orthopaedic SurgerySteel Memorial Hirohata HospitalHimejiJapan

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