Sprain of the first MCP joint is frequent. In patients with UCL, tear, the adductor
aponcurosis may become interposed between the distal site of ligament attachment and
the ruptured ligament: this lesion, described by Stener, prevents ligamentous healing
and requires surgical intervention. We present the results from a prospective study
of 56 patients with first MCP sprain in order to determine the value of US by correlating
with surgical findings. We propose a new dynamic maneuver during flexion-extension
of the IP joint. This enables visualization of the adductor aponeurosis and its relationship
to the UCL on US allowing detection of a Stener lesion when it exists. All patients
with Stener lesion on US underwent surgery (32 operated patients): the sensitivity
of US was 95.4% with a specificity of 80% for detection of Stener lesions. US, with
the use of this specific dynamic maneuver is a reliable and reproducible tool for
detecting Stener lesions. Review of video recordings allows visual comprehension of
the examination for other health care providers.
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© 2009 Published by Elsevier Inc.
