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Accuracy of blind versus ultrasound‐guided suprapatellar bursal injection

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AbstractPurpose.To compare the accuracy rates between ultrasound (US)‐guided and blind knee intra‐articular injection via the suprapatellar bursa.Methods.Ninety‐nine patients with radiographically confirmed knee osteoarthritis (Kellgren/Lawrence grade 2 or 3) without effusion were included. Fifty patients were assigned to the US‐guided injection group and 49 to the blind injection group. After a US‐guided or blind injection of hyaluronic acid (HA) and contrast dye through the suprapatellar bursa into the knee joint, a radiographic image was obtained in each case to ascertain whether all injected material had reached the intra‐articular space.Results.US‐guided HA injection exhibited a significantly greater accuracy (48 of 50 knees, 96.0%) than blind injection (41 of 49 knees, 83.7%).Conclusions.Intra‐articular injections through the suprapatellar bursa under US guidance increased the accuracy of knee joint injections. © 2011 Wiley Periodicals, Inc. J Clin Ultrasound,2011
Title: Accuracy of blind versus ultrasound‐guided suprapatellar bursal injection
Description:
AbstractPurpose.
To compare the accuracy rates between ultrasound (US)‐guided and blind knee intra‐articular injection via the suprapatellar bursa.
Methods.
Ninety‐nine patients with radiographically confirmed knee osteoarthritis (Kellgren/Lawrence grade 2 or 3) without effusion were included.
Fifty patients were assigned to the US‐guided injection group and 49 to the blind injection group.
After a US‐guided or blind injection of hyaluronic acid (HA) and contrast dye through the suprapatellar bursa into the knee joint, a radiographic image was obtained in each case to ascertain whether all injected material had reached the intra‐articular space.
Results.
US‐guided HA injection exhibited a significantly greater accuracy (48 of 50 knees, 96.
0%) than blind injection (41 of 49 knees, 83.
7%).
Conclusions.
Intra‐articular injections through the suprapatellar bursa under US guidance increased the accuracy of knee joint injections.
© 2011 Wiley Periodicals, Inc.
J Clin Ultrasound,2011.

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