Optimal definitions for computing HKA angle in caos: an in-vitro comparison study

Autor: Guillaume Dardenne, Bhushan Borotikar, Hoel Letissier, Ahmed Zemirline, Eric Stindel
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Computer Assisted Surgery, Vol 27, Iss 1, Pp 27-34 (2022)
Druh dokumentu: article
ISSN: 24699322
2469-9322
DOI: 10.1080/24699322.2022.2066023
Popis: The goal of this study was to assess and compare the precision and accuracy of nine and seven methods usually used in Computer Assisted Orthopedic Surgery (CAOS) to estimate respectively the Knee Center (KC) and the Frontal Plane (FP) for the determination of the HKA angle (HKAA). An in-vitro experiment has been realized on thirteen cadaveric lower limbs. A CAOS software application was developed and allowed the computation of the HKAA according to these nine KC and seven FP methods. The precision and the accuracy of the HKAA measurements were measured. The HKAA precision was highest when the FP is determined using the helical method. The HKAA accuracy was highest using the helical approach to determine the FP and either the notch or the tibial spines to determine the KC. This study shows that the helical approach to determine the FP and either the notch or the middle of tibia spines are the combinations that provide both a good enough accuracy and precision to estimate the HKA.
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