Ultrasonographic study of the femoropatellar joint and its attachments in normal infants from birth to 24 months of age: Part I

Ultrasonographic study of the femoropatellar joint and its attachments in normal infants from birth to 24 months of age: Part I

Author Mizobuchi, Roberto Ryuiti Google Scholar
Galbiatti, Jose Antonio Google Scholar
Neto, Francisco Quirici Google Scholar
Milani, Carlo Google Scholar
Fujiki, Edison Noboru Google Scholar
Oliveira, Heverton Cesar de Google Scholar
Bensahel, Henri Google Scholar
Navarro, Ricardo Dizioli Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade Federal do ABC (UFABC)
Robert Debre Children Hosp
Abstract Eighty knees of 40 musculoskeletally normal infants whose age ranged from 0 to 24 months (average 9.65 months) were ultrasonographically analyzed. The lengths of the patella, patellar ligament - and the Insall-Salvati index, knee being flexed at 30 degrees, were assessed. The angles of the femoral cartilaginous sulcus knee flexed at 0, 30, 60, and 90 degrees were also defined. Patellar length varied from 1.84 to 2.02 cm (mean, 93.3cm; standard deviation, 0.35); patellar ligament length varied from 1.67 to 1.86 (mean, 1.76 cm; standard deviation, 0.25); the Insall-Salvati index varied from 1.04 to 1.13, (mean, 1.09; standard deviation, 0.14); and femoral cartilaginous sulcus angle ranged from 148.7 to 149.3 degrees (average, 148.9 degrees and standard deviation, 6.20). Statistical tests showed no significant difference in the proposed measures according to sex and side (right/left). Moreover, we did not observe significant difference in the femoral cartilaginous sulcus angle with respect to the various degrees of knee flexion. Thus, we conclude that ultrasonography is useful for determining the normal values of the Insall-Salvati index and femoral cartilaginous sulcus angle in infants from 0 to 24 months. Then, we suggest standardization of this imaging procedure for the early diagnosis of deformities, which might impair the knee in infants within this range of age.
Keywords femoral cartilaginous sulcus angle
Insall-Salvati index
Language English
Date 2007-07-01
Published in Journal Of Pediatric Orthopaedics-part B. Philadelphia: Lippincott Williams & Wilkins, v. 16, n. 4, p. 262-265, 2007.
ISSN 1060-152X (Sherpa/Romeo, impact factor)
Publisher Lippincott Williams & Wilkins
Extent 262-265
Origin http://dx.doi.org/10.1097/BPB.0b013e32809256d0
Access rights Closed access
Type Article
Web of Science ID WOS:000247296300004
URI http://repositorio.unifesp.br/11600/44553

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