Radiographic Features of Acute Patellar Tendon Rupture

Orthopaedic Surgery
Muhammad Ali FazalFares Haddad

Abstract

The purpose of our study was to assess soft tissue features of acute patellar tendon rupture on lateral knee radiograph that would facilitate early diagnosis. The participants were divided into two groups of 35 patients each. There were 28 men and seven women with a mean age of 46 years in the control group and 26 men and nine women with a mean age of 47 years in the rupture group. The lateral knee radiograph of each patient was evaluated for Insall-Salvati ratio for patella alta, increased density of the infrapatellar fat pad, appearance of the soft tissue margin of the patellar tendon and bony avulsions. In the rupture group there were three consistent soft tissue radiographic features in addition to patellar alta. These were increased density of infrapatellar fat pad; loss of sharp, well-defined linear margins of the patellar tendon and angulated wavy margin of the patellar tendon while in the control group these features were not observed. The soft tissue radiographic features described in the rupture group are consistent and reliable. When coupled with careful clinical assessment, these will aid in early diagnosis and further imaging will be seldom required.

References

Dec 24, 1997·JAMA : the Journal of the American Medical Association·I G StiellJ A Michael
Nov 1, 1996·The Journal of the American Academy of Orthopaedic Surgeons·M J Matava
Sep 7, 2000·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·R SeilS Rupp
Oct 22, 2005·Clinical Orthopaedics and Related Research·Kingsley R Chin, Jeffrey F Sodl

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Citations

Dec 1, 2017·Orthopaedic Nursing·Mary Kamienski
Apr 17, 2019·BMJ Case Reports·Alexander Nagel TandbergWender Figved
Oct 30, 2020·Clinical Imaging·Raffy MirzayanNathanael Heckmann
Mar 31, 2021·Journal of Pediatric Orthopedics·Evan Drew SheppardBenjamin D Martin

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