The purpose of this study was to assess the diagnostic accuracy of transdel
toid palpation (the rent test) for the diagnosis of full thickness rotator
cuff tear. Clinical and arthroscopic findings were documented prospectively
for 109 consecutive patients undergoing shoulder arthroscopy by the senior
author A retrospective analysis was then performed on these data to assess
the accuracy of transdeltoid palpation in the diagnosis of full thickness
rotator cuff tear Transdeltoid palpation was found to have a sensitivity of
95.7% and a specificity of 96.8% for the diagnosis Of full thickness rotat
or cuff tear The positive and negative predictive values for transdeltoid p
alpation were 95.7% and 96.8%, respectively. Overall, the diagnostic accura
cy of transdeltoid palpation was 96.3%. We conclude that transdeltoid palpa
tion is highly accurate for the clinical diagnosis of full thickness rotato
r cuff tear.