Evaluation of tibial tray coronal plane alignment in total knee replacement using intramedullary JIG-a prospective study

Abstract

Introduction: Long term survivorship in total knee replacement [TKR] is significantly dependant on prosthesis alignment. In a standard total knee replacement, tibial component alignment is a key factor for the long-term success of the surgery. Materials and Methods: A prospective observational study on 176 subjects who underwent TKR with intramedullary jig for tibial alignment with a minimum follow up period of 6 months was conducted in the Department of orthopaedics, KIMS Al Shifasuper-specialty hospital, Kerala. The Tibial component alignmentwas measured by the Tibial Component Angle [TCA] and Error in Tibial trayalignment. The other outcome variables were knee score, functional score, and Tourniquet time. Results: The mean TCA in the study population was 90.56º±1.194º ranging from 86.45º to 94.05º. The mean error observed in tibial tray alignment was -0.56±1.199 degrees, ranging from -0.45 to + 3.55 degrees. Accuracy of TCA within 90 ± 2 degrees was achieved in 91.48% of subjects. The mean knee score at 6months was 89.45 ± 3.83. The mean functional score at 6months was 87.55 ± 4.93. The mean tourniquet time was 59.08 ± 5.88 minutes. Conclusions: Intramedullary tibial referencing guide can be used in TKR with great accuracy (91.48%) to achieve desired coronal plane tibial component alignment (90o ±2o). When TCA was accurate, knee score and functional score were better than non-accurate TCA cases

Authors and Affiliations

Rahul Sreenivasan Thokaloath, E. G. Mohankumar

Keywords

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  • EP ID EP498137
  • DOI 10.17511/ ijoso.2018.i4.03
  • Views 282
  • Downloads 0

How To Cite

Rahul Sreenivasan Thokaloath, E. G. Mohankumar (2018). Evaluation of tibial tray coronal plane alignment in total knee replacement using intramedullary JIG-a prospective study. Surgical Update: International Journal of Surgery and Orthopedics, 4(4), 144-150. https://europub.co.uk/articles/-A-498137