A soft patellar tendon on ultrasound elastography is associated with pain and functional deficit in volleyball players

Chin-Chin Ooi, Paula J Richards, Nicola Maffulli, David Ede, Michal E Schneider, David A Connell, Dylan Morrissey, Peter Malliaras

Research output: Contribution to journalArticleResearchpeer-review

27 Citations (Scopus)

Abstract

OBJECTIVES: To investigate the diagnostic performance of grey scale Ultrasound (US), power Doppler (PD) and US elastography for diagnosing painful patellar tendinopathy, and to establish their relationship with Victorian Institute of Sport Assessment-Patella (VISA-P) scores in a group of volleyball players with and without symptoms of patellar tendinopathy. DESIGN: Cross-sectional study. METHODS: Thirty-five volleyball players (70 patellar tendons) were recruited during a national university volleyball competition. Players were imaged with conventional US followed by elastography. The clinical findings of painful patellar tendons were used as the reference standard for diagnosing patellar tendinopathy. In addition, all participants completed the VISA-P questionnaires. RESULTS: Of the 70 patellar tendons, 40 (57.1 ) were clinically painful. The diagnostic accuracy of grey scale US, PD and elastography were 60 , 50 , 62.9 , respectively, with sensitivity/specificity of 72.5 /43.3 , 12.5 /100 , and 70 /53.3 , respectively. Combined US elastography and grey scale imaging achieved 82.5 sensitivity, 33.3 specificity and 61.4 accuracy while routine combination technique of PD and grey scale imaging revealed 72.5 sensitivity, 43.3 specificity and 60.0 accuracy. Tendons in players categorized as soft on elastography had statistically significantly greater AP thickness (p
Original languageEnglish
Pages (from-to)373-378
Number of pages6
JournalJournal of Science and Medicine in Sport
Volume19
Issue number5
DOIs
Publication statusPublished - 2016

Cite this