A novel method for assessing regional tendon stiffness and its significance

Siu Ngor Fu (Corresponding Author), Hsing Kuo Wang, Chen Huang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Elastography can be used to estimate the regional shear modulus of a tendon. This can advance our knowledge on the impact of patellar alignment and regional patellar tendon stiffness. This is important as patellar tendon abnormality is mainly found in the medial portion of the tendon in subjects with proximal patellar tendinopathy. This paper aims to assess the effect of patellar displacement on differential modulation on the shear modulus of the patellar tendon. Shear modulus is captured on the medial and lateral half of the patella tendon using the Axiplorer® ultrasound unit in conjunction with a 4-15 MHz, 50 mm linear transducer with the patellar being positioned in its resting, medio- and laterally displaced positions on 40 adults (19 females, 21 males). When the patellar is displaced laterally, the shear modulus is significantly increased at the medial half in both genders but decreased at the lateral half only in females. Conclusions: Elastography detects changes in regional tendon stiffness associated with alteration in patellar positions. The modulation on the shear modulus is gender and region specific.

Original languageEnglish
Article number1156
JournalApplied Sciences (Switzerland)
Volume8
Issue number7
DOIs
Publication statusPublished - 17 Jul 2018

Keywords

  • Patellar positions
  • Patellar tendon
  • Shear modulus
  • Supersonic shear imaging
  • Tendon stiffness

ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

Cite this