18 22

Cited 0 times in

무릎인대 길이 대 무릎골 길이의 비율 : 굴곡 및 신전 자기공명영상비교

Other Titles
 Patellar Tendon to Patella Ratio : Evaluation with Flexion and Extension MR Imaging 
 서재승  ;  서진석  ;  최진영 
 Journal of the Korean Radiologist Society (대한방사선의학회지), Vol.38(5) : 913-917, 1998 
Journal Title
 Journal of the Korean Radiologist Society (대한방사선의학회지) 
Issue Date
Purpose : To determin whether radiographic assessment of patella position abnormalities (such as patella altaor baja) using the 'patellar tendon : patella ratio' (Insall & Salvati's method) can be applied to flexion andextension sagittal MR images of the knee Materials and Methods : Both flexion (55-90。, mean 62。) and extensionT2-weighted sagittal images of 58 knees (54 patients;age:19-72 years:M:F=40:18 were obtained and reviewed by meansof routine lateral radiographs (flexion of knees:30-60。). Patellar tendon and diagonal length were measured onroutine radiographs and on flexion and extension MR images;length was measured by sagittal T2-weighted MR imagingfrom the inner aspect of patellar insertion to the inner asspect of tibial insertion, an approach whichdemonstrated the even thickness of the patellar tendon and the greastest diameter of the patella. Usingcorrelation analysis, the ratio of patellar tendon to diagonal length was compared between examination methods andbetween the non-wavy and wavy forms of patellar tendon. Results : The mean length of the respectirely, 'patella,patellar tendon and patellar tendon to patella ratio' were 4.15±0.38, 4.04±0.49 and 0.9±0.12, respectively, onroutine radiographs; 4.32±0.36, 3.8±0.47 and 0.89± 0.12, respectively, on flexion MR images;and 4.3±0.36,3.93±0.44 and 0.92±0.12, respectively on extension MR images. Between these three different modes of assessment,a high degree of correlation of mean patella length (r=0.89-0.92) and of mean patellar tendon length (r=0.71=0.85)were found. In addition, correlation of 'patella to patellar tendon ratios' was excellent : radiographs andflexion MRimages(r=0.76);radiographs and extension MR images(r=0.76);flexion and extension MR images(r=0.84).According to the form of patellar tendon, radiographs correlated better with extension MR images (r-0.71) thanwith flexion images (r=0.62) in the non-wavy form of patellar tendon, whereas in the wavy form, correlation withflexion images (r=0.83) was better than with extension images(r=0.78). Conclusion : MR asessment of 'patellartendon to patella ratio's correlated well with radiographic assessment, and the latter can therefore be used forthe evaluation of abnormal patellar position. Radiographs correlated better with extension MR images in thenon-wavy form of patellar tendon, whereas in the wavy form, correlation with flexion images was better.
Files in This Item:
T199802561.pdf Download
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Suh, Jin Suck(서진석) ORCID logo https://orcid.org/0000-0001-9455-9240
Choi, Jin Young(최진영) ORCID logo https://orcid.org/0000-0002-9025-6274
사서에게 알리기


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.