Accuracy of blind versus ultrasound-guided suprapatellar bursal injection

Authors

  • Yong Bum Park MD,

    1. Department of Physical Medicine & Rehabilitation, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, South Korea
    Search for more papers by this author
  • Won Ah Choi MD,

    1. Department of Rehabilitation Medicine and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, South Korea
    Search for more papers by this author
  • Yong-Kyun Kim MD, PhD,

    1. Department of Physical Medicine & Rehabilitation, Myongji Hospital, Kwandong, University College of Medicine, Gyunggi, South Korea
    Search for more papers by this author
  • Sang Chul Lee MD, PhD,

    Corresponding author
    1. Department of Physical Medicine & Rehabilitation, Myongji Hospital, Kwandong, University College of Medicine, Gyunggi, South Korea
    • Department of Physical Medicine & Rehabilitation, Myongji Hospital, Kwandong, University College of Medicine, Gyunggi, South Korea
    Search for more papers by this author
  • Ji Hae Lee MD

    1. Department of Radiology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, South Korea
    Search for more papers by this author

Abstract

Purpose.

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

Ancillary