impingement injection test

impingement injection test

[impinj′mənt]
an appraisal of shoulder injury in which the injection of 10 mL of lidocaine into the subacromial space reduces the painful arc of abduction by more than 50%.
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We performed a subacromial impingement injection test by injecting 10 mL of a local anesthetic into the subacromial space in patients with positive impingement test results.