An Advanced Device for Multiplanar Instability Assessment in MRI

  • Renato Andrade
  • Hugo Duarte
  • Rogério Pereira
  • Claudia Arias
  • Ricardo Bastos
  • Sérgio Rodrigues-Gomes
  • Joaquim Miguel Oliveira
  • Rui L. Reis
  • João Espregueira-MendesEmail author


Multiligament knee injuries have low incidence, however are very devastating and require special attention. New approaches in the diagnosis are vital to allows a better assessement of associated lesions, more careful treatment planning and objective follow-up. The Porto-Knee Testing Device (PKTD) shows very promising results in the assessment of knee instability. The goal of the PKTD is to provide both anatomical and functional evaluation of the knee. It is able to carefully assess the knee sagittal and rotational stability. In multiligament injuries, the use of a arthrometric device concomitantly with imaging procedures can provide valuable information for surgical planning and stability restoration procedures. It is also possible in the postoperative follow-up to evaluate residual instability. Herein, we discuss the recent developments related to PKTD in diagnosis of knee ligament lesions and instability assessment.


Multiligament Laxity Knee Porto-knee testing device 


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Copyright information

© ISAKOS 2019

Authors and Affiliations

  • Renato Andrade
    • 1
    • 2
    • 3
  • Hugo Duarte
    • 4
  • Rogério Pereira
    • 1
    • 2
    • 3
    • 5
  • Claudia Arias
    • 6
    • 7
  • Ricardo Bastos
    • 2
    • 3
    • 8
  • Sérgio Rodrigues-Gomes
    • 2
    • 3
  • Joaquim Miguel Oliveira
    • 9
    • 10
    • 11
  • Rui L. Reis
    • 9
    • 10
    • 11
  • João Espregueira-Mendes
    • 2
    • 3
    • 10
    • 12
    Email author
  1. 1.Faculty of SportsUniversity of PortoPortoPortugal
  2. 2.Clínica do Dragão, Espregueira-Mendes Sports Centre - FIFA Medical Centre of ExcellencePortoPortugal
  3. 3.Dom Henrique Research CentrePortoPortugal
  4. 4.Faculty of Medicine, University of PortoPortoPortugal
  5. 5.University Fernando PessoaPortoPortugal
  6. 6.Hospital Edgardo Rebagliati MartinsLimaPeru
  7. 7.International Clinic San BorjaLimaPeru
  8. 8.Fluminense Federal UniversityRio de JaneiroBrazil
  9. 9.3B’s Research Group–Biomaterials, Biodegradables and BiomimeticsUniversity of MinhoMinhoPortugal
  10. 10.Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineBarco/GuimarãesPortugal
  11. 11.ICVS/3B’s–PT Government Associate LaboratoryBraga/GuimarãesPortugal
  12. 12.School of MedicineUniversity of MinhoBragaPortugal

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