Development and Validation of a Mobile Application for Measuring Femoral Anteversion in Patients With Cerebral Palsy.
Background: Computed tomography (CT) provides benefits for 3-dimensional (3D) visualization of femur deformities. However, the potential adverse effects of radiation exposure have become a concern. Consequently, a biplanar imaging system EOS has been proposed to enable reconstruction of the 3D model...
| Publicado en: | Journal of Pediatric Orthopaedics Vol. 39; no. 10 |
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| Autores principales: | , , , , , , , |
| Formato: | Journal Article |
| Publicado: |
Lippincott Williams & Wilkins
Nov/Dec2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=139498385&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 139498385 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 02716798 4CC jtl: Journal of Pediatric Orthopaedics issn: 02716798 maglogo: N pubinfo: dt: Nov/Dec2019 vid: 39 iid: 10 pid: 433 pub: Lippincott Williams & Wilkins place: Baltimore, Maryland artinfo: ui: 139498385 139498385 NLM31688821 10.1097/BPO.0000000000001468 NLM31688821 139498385 ppct: 1 formats: tig: atl: Development and Validation of a Mobile Application for Measuring Femoral Anteversion in Patients With Cerebral Palsy. aug: au: Sung, Ki Hyuk Youn, Kibeom Chung, Chin Youb Kitta, Muhammad I Kumara, Hendra C Min, Jae Jung Lee, Jehee Park, Moon Seok affil: Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Sungnam, Gyeonggi Province sug: ab: Background: Computed tomography (CT) provides benefits for 3-dimensional (3D) visualization of femur deformities. However, the potential adverse effects of radiation exposure have become a concern. Consequently, a biplanar imaging system EOS has been proposed to enable reconstruction of the 3D model of the femur. However, this system requires a calibrated apparatus, the cost of which is high, and the area occupied by it is substantial. The purpose of this study was to develop a mobile application that included a new method of 3D reconstruction of the femur from conventional radiographic images and to evaluate the validity and reliability of mobile the application when measuring femoral anteversion.Methods: The statistical shape model, graph-cut algorithm, and iterative Perspective-n-Point algorithm were utilized to develop the application. The anteroposterior and lateral images of a femur can be input using the embedded camera or by file transfer, and the touch interface aids accurate contouring of the femur. Regarding validation, the CT scans and conventional radiographic images of 36 patients with cerebral palsy were used. To evaluate concurrent validity, the femoral anteversion measurements on the images reconstructed from the mobile application were compared with those from the 3D CT images. Three clinicians assessed interobserver reliability.Results: The mobile application, which reconstructs the 3D image from conventional radiographs, was successfully developed. Regarding concurrent validity, the correlation coefficient between femoral anteversion measured using 3D CT and the mobile application was 0.968 (P<0.001). In terms of interobserver reliability, the intraclass correlation coefficient among the 3 clinicians was 0.953.Conclusions: The measurement of femoral anteversion with the mobile application showed excellent concurrent validity and reliability in patients with cerebral palsy. The proposed mobile application can be used with conventional radiographs and does not require additional apparatus. It can be used as a convenient technique in hospitals that cannot afford a CT machine or an EOS system.Level Of Evidence: Level III-diagnostic. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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