Patellar instability: Assessment on MR images by measuring the lateral trochlear inclination-initial experience

Authors
Carrillon, Y Abidi, H Dejour, D Fantino, O Moyen, B Tran-Minh, VA
Citation
Y. Carrillon et al., Patellar instability: Assessment on MR images by measuring the lateral trochlear inclination-initial experience, RADIOLOGY, 216(2), 2000, pp. 582-585
Citations number
19
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging","Medical Research Diagnosis & Treatment
Journal title
RADIOLOGY
ISSN journal
00338419 → ACNP
Volume
216
Issue
2
Year of publication
2000
Pages
582 - 585
Database
ISI
SICI code
0033-8419(200008)216:2<582:PIAOMI>2.0.ZU;2-8
Abstract
Lateral trochlear inclination (LTI) of the knee was compared on magnetic re sonance (MR) images obtained in 30 patients with patellar instability (PI) and 30 patients with nonspecific internal knee derangement. Differences in LTI values between the two populations were significant (P < .001). Reprodu cibility of the measurement was judged excellent with an intraclass correla tion superior to 0.98. Below a threshold value fixed at 11 degrees, LTI app ears to be an excellent diagnostic test of pi with a sensitivity of 0.93 (2 8/30), a specificity of 0.87 (26,30), and an accuracy of 0.90 (54/60).