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Changes in femoral anteversion after intramedullary nailing for pediatric femoral shaft fracture: a multicenter study.
Min, Jae Jung; Kwon, Soon-Sun; Youn, Kibeom; Kim, Daehyun; Sung, Ki Hyuk; Park, Moon Seok.
Afiliación
  • Min JJ; Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82 Gumi-Ro 173 Beon-Gil, Bundang-Gu, Sungnam, 13620, Gyeonggi, Korea.
  • Kwon SS; Departments of Mathematics and Department of Artificial Intelligence, Ajou University, Gyeonggi, Korea.
  • Youn K; Didim, Inc, Gyeonggi, Korea.
  • Kim D; Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82 Gumi-Ro 173 Beon-Gil, Bundang-Gu, Sungnam, 13620, Gyeonggi, Korea.
  • Sung KH; Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82 Gumi-Ro 173 Beon-Gil, Bundang-Gu, Sungnam, 13620, Gyeonggi, Korea.
  • Park MS; Department of Orthopaedic Surgery, Seoul National University College of Medicine, 103 Daehak-Ro, Jongno-Gu, Seoul, 03080, Korea.
BMC Musculoskelet Disord ; 25(1): 534, 2024 Jul 12.
Article en En | MEDLINE | ID: mdl-38997683
ABSTRACT

BACKGROUND:

The rotational change after using a flexible intramedullary (IM) nail for femoral shaft fractures has been a concern for many surgeons. Recently, a statistical shape model (SSM) was developed for the three-dimensional reconstruction of the femur from two-dimensional plain radiographs. In this study, we measured postoperative femoral anteversion (FAV) in patients diagnosed with femoral shaft fractures who were treated with flexible IM nails and investigated age-related changes in FAV using the SSM.

METHODS:

This study used radiographic data collected from six regional tertiary centers specializing in pediatric trauma in South Korea. Patients diagnosed with femoral shaft fractures between September 2002 and June 2020 and patients aged < 18 years with at least two anteroposterior (AP) and lateral (LAT) femur plain radiographs obtained at least three months apart were included. A linear mixed model (LMM) was used for statistical analysis.

RESULTS:

Overall, 72 patients were included in the study. The average patient age was 7.6 years and the average follow-up duration was 6.8 years. The average FAV of immediate postoperative images was 27.5 ± 11.5°. Out of 72 patients, 52 patients (72.2%) showed immediate postoperative FAV greater than 20°. The average FAV in patients with initial FAV > 20° was 32.74°, and the LMM showed that FAV decreased by 2.5° (p = 0.0001) with each 1-year increase from the time of initial trauma.

CONCLUSIONS:

This study explored changes in FAV after femoral shaft fracture using a newly developed technology that allows 3D reconstruction from uncalibrated 2D images. There was a pattern of change on the rotation of the femur after initial fixation, with a 2.5° decrease of FAV per year.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Clavos Ortopédicos / Fracturas del Fémur / Fémur / Fijación Intramedular de Fracturas Límite: Adolescent / Child / Child, preschool / Female / Humans / Male País/Región como asunto: Asia Idioma: En Revista: BMC Musculoskelet Disord Asunto de la revista: FISIOLOGIA / ORTOPEDIA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Clavos Ortopédicos / Fracturas del Fémur / Fémur / Fijación Intramedular de Fracturas Límite: Adolescent / Child / Child, preschool / Female / Humans / Male País/Región como asunto: Asia Idioma: En Revista: BMC Musculoskelet Disord Asunto de la revista: FISIOLOGIA / ORTOPEDIA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido