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- W3109658141 abstract "Background: In patients with Slipped Capital Femoral Epiphysis (SCFE), an Imhauser osteotomycan be performed using a surgical guide to improve the accuracy of the surgery. However,the usage of the surgical guide during this procedure does not acquire the desired postoperativeoutcome. This study aims to research the extent to which displacement of the surgicalguide during an Imhauser osteotomy can be responsible for the postoperative deviation relativeto the preoperative planning in adolescents with SCFE.Methods: In this experimental study, the articular surface to trochanter distance (ATD), neckshaftangle (NSA) and medial proximal femoral angle (MPFA) were used as outcomes to quantifythe femoral position. Data of four patients were acquired and the deviation between planningand the postoperative outcome was determined for each patient. Simulations of the Imhauserosteotomy were performed with displaced positions of the surgical guide on the femur. Thepositions are translations of 3 and 6 mm in posterior-anterior and superior-inferior direction androtations of 5 degrees counterclockwise and clockwise. Three-dimensional (3D) printed modelexperiments of two of the patients at the reference position were performed to verify the simulations.Results: The ranges of deviation in the displacement directions compared to the clinical rangeof deviation showed no significant difference, with a significance level of 0.05, for: anterior ATD(p= 0.693), anterior NSA (p= 0.270), anterior MPFA (p= 0.553), superior MPFA (p= 0.137), inferiorMPFA (p= 0.109), counterclockwise ATD (p= 0.098), counterclockwise MPFA (p= 0.615),clockwise NSA (p= 0.076) and clockwise MPFA (p= 0.081). For all other displacement directionsand parameters, a significant difference was observed compared to the clinical range ofdeviation.Conclusion: An anterior displacement might explain the clinical deviation, as the ranges of deviationanteriorly do not significantly differ from the clinical range for the ATD, NSA and MPFA." @default.
- W3109658141 created "2020-12-07" @default.
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- W3109658141 date "2020-01-01" @default.
- W3109658141 modified "2023-09-27" @default.
- W3109658141 title "The influence of positioning printed surgical guides onpostoperative Imhäuser osteotomy outcomes in adolescents with Slipped Capital Femoral Epiphysis" @default.
- W3109658141 hasPublicationYear "2020" @default.
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