Abstract
Background
The present study aimed to assess the accuracy and characterize the learning curve of surgeon-lead shoulder ultrasound scans (USS) performed in outpatients for suspected rotator cuff tears, with intra-operative findings considered as the gold standard.
Methods
From 2009 to 2011, all patients having arthroscopic shoulder surgery by the senior author were identified. Clinic letters were reviewed to identify those who had undergone USS in clinic. This was then compared with the operating findings.
Results
A total of 66 patients had an USS and proceeded to arthroscopic shoulder surgery during that time. Overall sensitivity and specificity was 0.86 and 0.70, respectively. Comparing values from 2009 to 2011: specificity improved from 0.50 to 0.8; sensitivity remained much the same with 2009 values of 0.88 to 2011 values of 0.86.
Conclusions
The results reflect good sensitivity and specificity, which was comparable with that reported in the literature. There was an improvement in specificity over time displaying a learning curve and emphasizing the question of how much experience in shoulder USS is required before it can be relied upon as the patient's primary imaging preoperatively?
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